K24 k20z3 head. The k24a is by far the best option.
K24 k20z3 head 3. K24/20 compression ratio Hey I built an engine for my 8th gen si 06 k24a2 block with a k20z3 head, both stock I’m wondering what the compression ratio is? Would it be good for turbo or should I build another engine? TIA Aug 13, 2012 · K20z3 coolant diverters? acura tsx head gasket k20z3 civic si over bored block 1 reading Jump to Latest 16K views 24 replies 5 participants last post by Fg2_FrAn Nov 19, 2014 Sep 14, 2007 · You wouldn't use the water port, you'd block it off on the K24. It has VTEC on both the intake and exhaust with variable phasing on the intake side. | Acura RSX, ILX and Honda EP3 Forum Home Forums RSX Forums Advanced Performance RSX Engine Building & Design May 16, 2008 · The K24A4 and K24A2 use the same head layout as the K20Z3 head and also have a coolant divertor. Honda K20 Vs K24: An Detailed Comparison Understanding The Basics Both the K20 and K24 are solid choices. RBB version - This version comes on the Honda Accord K24a3 and other vehicles equipped with the higher spec K24 engines. My ep3 already has the k24 swap with kpro. Dec 20, 2020 · Hello, I would like to know how true it is that the k24z7 pistons collide with the valve in the k20z3 head swap. Oct 22, 2010 · K20z3 head k24a4 block I blew my k20z3 so I butured the engine and bought a k24a4 engine. Paying so much for not much of a gain. Extreme Engine Tech: Building the Ultimate K24 Part 3- The Finished Goods! Apr 5, 2011 · Which ones? -hybrid racing K swap axels? -external joint Bserie; axle K20/K24; internal joint K24/20 (if K24 int. K20A2 cylinder head on K24 bottom end. Back in 2009 my k20z3 engine hydro-locked due to a cai and rainny season. Mark all wiring and hoses to avoid misconnection. com In today’s video we install the built K20z3 Head onto the k24a2 block for the K20/K24 swap EK Coupe, with a quick breakdown of what aftermarket parts were used in the K20z3 head. As far as compression the K20a has the 11. org . Current setup: K24Z3 block 87. The K Series Source . It may not hurt to keep the k20 cams in case you do forced induction down the road and like those K-SERIES CYLINDER HEAD TORQUE SPECS* OEM Cylinder head bolts: 39Nm (29ft/lbs), 90 deg + 90 deg (One extra 90 deg on new bolts)"ARP HEAD BOLTS"ALL K SERIES Clean block thread holes till dry lube top nut threads only with 10w30 or ARP Molly lube then use 5/16 allen key to torque studs to 10 Jul 13, 2021 · The z4 should be modeled after a k24/k20z3 with the coolant passage/rad hose outlet on the side of the head. 5:1 where Applications: K20Z3 K24 heads Features: -16OR (O-Ring) and Hose End 1. K Series ARP Head Studs K20 K24 | Acura Honda K20A K20A2 K24A2 K24A4 K20Z1 K20Z3 Head Studs | Made out of premium grade 8740 chromoly, these studs have a strength rated far superior to OE and "aircraft" quality bolts. 5in sk2 cai to j37 to port matched rrc. I have a k24z2 sitting around and was curious if everything was swapped with k20z3 parts would be the same? I get the valve train is different between a k 20/24 as people swap cams, but I want to have a spare head for my fg2. ppl swap k24a1 and k24a2 from the crv or tsx. e. Oct 24, 2009 · I found a repair manual online that says the torque specs are 28 ft/lbs. can someone give me pro's and con's about this. 5mm 7 degree vavle keeper set - Supertech Exhaust valve guides for 5. The engines use a coil-on-plug, distributorless ignition system with a coil for each spark plug. Has any on here done a build like this before? I have most of the parts required for the build but is it worth it? I have a stock 07 Si with a k20z3 that I plan on swapping Apr 23, 2008 · Wiseco 12. I have the complete Z3 engine with transmission, water pump, oil pump, pan, and everything else. im really curious soooo! i got fully dismanteled k24a4 from accord. I honestly don't think it's worth the trade from an K24a2 head to an K20a2 head. i'm too lazy to find links so take my info with a grain of salt :dance: edit: if it's the tsx headi think the ports aren't as opened up as the k20a2/z1/z3. I. . now i want to swap out the head but i dont know which 1 should i go with k20a2 or k20z3 head??? im leaning forward Z3 because it new and i can get it cheap im a sealperson for honda. 5:1 pistons in a K24, it would shoot the compression up towards 14:1. 5mm stem - Supertech Intake valve guides for 5. Nov 5, 2020 · In building a K24Z3 for my TSX. There's details on Karcept's site for his RBC IM to TB adapter (which you won't need). This motor is built for a turbo setup. Mar 1, 2021 · Hey, if anyone can help me out. 99 Sold Out Inline Pro VTEC Killer Locking Pins for Honda - Acura K Series (K20 & K24) Engines Inline Pro $89. thats also cheaper than waste TSX internals. The k20z3 in the other hand is a Aug 23, 2023 · It is so I can use my skunk2 ultra intake manifold on my k20z3 head (rbc). and k20z3 head (some parts are missing like chains, chain guide,etc but mostle there) and if im putting this head on k24a4, shoud i sleeve and block guard this a4? im going N/A with itb soon, dropping it on em1. OEM engineering, OEM reliability The K20/K24 Hybrid combines the best parts of two different K Series powerplants, while maintaining a good chunk of the OEM parts, and therefore, OEM reliability. B-Series | D-Series | K-Series | H/F-Series | Horsepower | Transmission Basic Compression Calculator | Advanced Compression Calculator | OBD-0 & OBD-I Check Engine Light Codes Jan 27, 2022 · K20 Head Gasket (You must use the K24 head gasket due to the increased bore) You will also need a service manual for one of the K24 motors or K20A2 for all the torque specs. 5K views 5 replies 3 participants last post by PsykotiK Feb 22, 2007 Skunk 2 Alpha Series 06-11 Civic Si K20Z3 (Race) Tri-Y 4-2-1 Header Manifold $ 350. ARP Head Studs for Honda / Acura K20A, K20A2, K20A3, K20Z1, K20Z3, K24A1, K24A2, K24A4, K24A8 & K24/K20 Engines Part # 208-4701 Obtaining the optimum cylinder head to block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. Before we begin, ensure you have a clean work environment. 00 InlinePRO 8740 Head Studs Inline Pro From $249. Aug 18, 2021 · I just bought one of the HPD built K24Z7/K20Z3 Franks, brand new in the crate. Still use the k20z3 head of course. I have a 06 Si, and I want to put a K24a2 in it with my K20z3 head. Additionally, the K24Z3 rods are stronger than all older K24 rods. So now I have a few questions. 99 Apr 2, 2015 · I was planning on doing a K20/24 (K20Z3 Head + K24A2 Bottom End). 030in Thickness Part Number: C4561-030 Retail: $107. The K20 pistons are spec'd for the 86mm crank, and require a much larger dome to attain the higher compression ratio. The K20 has a capacity of 2. 10:5:1 maybe? Dec 28, 2022 · This single collector made it perfect and easy for turbo kits. K24 bottom rods ( bc 625+ )n pistons ( wiseco ) 87. :) If anyone sees any errors, please correct. Mar 15, 2023 · K24 frank build (z3 block and 24 tsx head) and was wondering if I could put the TSX head on the existing block to make a true VTEC engine without any issues? The K24A2 head (RBB casting) is performance VTEC head, which has less flowing ports. If you use a K24 block then the divertor must be for a K24. The build consists of an RRC intake mani, 68mm tb, 3. 5 Supertech pistons Férrea 6000 valves, Drag Cartel 3. I wanted a classic, naturally aspirated motor that I read and dreamed about. Here is what I have so far. There are 3 parts to the series. Btw , usually they feed empty block with sick parts , high CR pistons , evil camshafts, k20 oil pump and so on . This is about as far as the specs will take us, so now let’s figure out how this affects the driving experience. The K20Z3 & K24A2/A4/A8 cylinder heads all have a 45 degree water neck coming off the right side of the head. 00 Show Details Sep 7, 2019 · I know that the K20Z3 head and K24 block has been done a few times and well documented on the forums, but what about this swap? If it's possible to do it, any ideas on the power figures? Dec 5, 2023 · I'm getting more & more familiar with how Hondas & their engines work, but still relatively new to k24 swapping. Its a matter or weight, gearing and revs. :. It is recommended to replace the head studs/bolts with a new set if the head bolts are ever loosened due to metal fatigue. Select K20A/A2/Z1 if using an RSX Type-S "PRB" head or select K20Z3 if using a 06-11 Civic Si "RBC" head on K24Ax block. This system forgoes the use of a conventional distributor-based ignition timing Apr 5, 2011 · Which ones? -hybrid racing K swap axels? -external joint Bserie; axle K20/K24; internal joint K24/20 (if K24 int. This version flows very well and can flow enough for the K24 engine to reach 260-270bhp without modifications. Genuine Honda K20/K24 head gaskets are the same multi-layer-steel (MLS) units that left the factory on every performance-minded RSX, Civic Si, TSX, Accord, CR-V and Element listed below, so you can bolt the head back on with total confidence. Hondata KPro Tuned by Howard at RLZ on DYNAPAC 233 hp and 172 tq Reving to 8k Feb 29, 2016 · Has anyone put a k24a2 on their a3 block? What did you see power wise? I'm getting a really good deal on the head and I blew my head gasket so I thought I might as well throw the head on until I can afford the rest of the swap and have some fun until then. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Vehicle Specific Cometic K20Z3 86mm Head Gasket: . 24 $96. 9 May 20, 2009 · Does ANYONE know the cr of a K24/K20 motor? Stock? Bottom end stock, head stock? Tried to search and could'nt find anything. K24z7 Engine with K20z3 Cylinder Head. Took that apart and now im down to the block. Oct 11, 2020 · The k24 cams are better than the z3, bigger primary and vtec lobes. the k20z3 will always be better than the new k24 :vtec: Reply Like Aug 11, 2015 · 2013 Civic Si K24z7/K20 266whp & 201. The k24 blew a head gasket, I still have to pull it apart to see if there’s any Internal damage but worse case scenario the head might be warped. Plm v3 k24 header no cat to 2. My water bypass allows RAA, RBB, RBC, and RSP cylinder head owners to run the more popular aftermarket intake manifold options that were designed Dec 18, 2011 · I'm building a K24 for my Si. All fasteners are individually racked and heat treated in-house in vacuum furnaces under the supervision of 4 In Stock Add to Cart Specs Point One 220ksi Tensile Strength Head Stud Kit Acura Honda K Series RSX K20A2 K20A3 K20Z1 K20Z3 K24 SKU# K050-H03S Price : $242. There are 4 different chassis from which you can K20/K24 Swap EK Coupe-pt. this piece simply allows you to run a k20a style manifold and still have the proper coolant flow. The first would be a complete RSX-S head with intake manifold and throttle body or a TSX head with an RSX-S intake manifold and throttle body. Well i will def be adding more information as information come to my head. The k24a is by far the best option. What better than to build a new engine with spare parts? Sep 3, 2021 · Found another thread on Si forums, the owner says he needed to use K24Z3 (R40) cam caps with K20Z3 head, any chance you remember whether or not that's the case @yangson720 or did you use K20 ones? Mar 19, 2022 · Does anyone know where I can find a list of all Honda Cylinder head part numbers with (hopefully) details about each one? I've done a bit of searching, but failed. shaft; OR INTERNAL K20 JOINT IS SAME K24?) ANSWER Do you use the Hasport engine mounts? If you use Hasport mounts you can use 'hybridation' mounts with B-series external joint and DC5 internal. I already have an extra K20z3 & a K24a2 so I can work on it without pulling the engine already in my car. We wanted to convert the RBB K24A to use all original 8th gen Si parts. Installed Skunk2 camshafts, Kelford valvesprings and Supertech valves better suited for turbocharged use. Not sure it's worth it. Except when K20z3 heads were going for 300 dollars Feb 14, 2021 · I have made this for myself for an engine im building and i thought mabie someone could use this also. Pro Series head studs for their all-out competition powerplants. Sep 24, 2025 · What internals to run on my k20z3 head k24a2 block boosted! :) Tags ecu k20/k24 build rod and pistons transmission valve spring Jump to Latest 1. Im putting the k20z3 head on the k24 block. Your tsx head haы a very good air flow , just a lil less then k20 head. Not all values are verified. 6K views 18 replies 8 participants last post by UrTotoNeedsAir Jun 18, 2011 K24 head with k20 parts? Hi everyone, I’m a noob with k series engines. Great way to refresh your Kseries cylinder head. Trying to decide what exactly I'm going to do with it, but the eventual goal is to put it in my '94 EJ1. Point One 220ksi Tensile Strength Head Stud Kit with 12pt Nuts Black Oxide Finish Acura Honda K Series RSX K20A2 K20A3 K20Z1 K20Z3 K24A Point One S220 Head Studs boast an impressive 220,000psi nominal tensile strength, made from steel sourced only from US mills. Honda / Acura K20a k24a Engine Forum. i ignored a usual sign of oil. ” The car sported a very well balanced Dec 17, 2009 · For me, once I tear apart my K24A1 and K20Z3 (to use K20Z3 head with K24A1 block), I'll have a spare K20 block and K24 head. I'll use May 31, 2014 · Need some feed back on the head setup I am about to build. if ill do the Z3 swap will it be the same Tuning by Nick Toronto, Ontario, Canada nick@tuningbynick. By default this piece is built into the oem rbc intake manifold. I had the car for 6 years. To properly install your head studs, you’ll need to first remove your cylinder head and while doing so you should take the opportunity to service surroundings seals and gaskets. Hoping to make about 260+ hp. The hose outlet on the K-Tuned housing pivots slightly, allowing approximately 15 degrees of angle adjustment. I'm still debating Jun 21, 2022 · Hello all, I recently purchased a k24a4 motor with the intention of swapping the k24a4 head with the k20z3 head. 12. Does anybody have any experience After sourcing our new JDM RBB K24A engine and removing the original K20Z3 it was time to start the process to convert the RBB K24A to the FG2/FA5 chassis. NOT compatible with K24Z series engines. p5 Tq -Updated- Another Build from JD Performance in Puerto Rico. Also, be sure that they do not contact other Sep 24, 2025 · What internals to run on my k20z3 head k24a2 block boosted! :) Tags ecu k20/k24 build rod and pistons transmission valve spring Jump to Latest 1. The z3 head is only a few cfm behind the PRB type s casting. Aug 26, 2025 · When swapping an RSP or K20Z3 head onto a K24A1/A2/A4 block the following parts are required: This gasket matches the K24A 87mm bore size and has the proper coolant passages for the RSP, K20Z3, and K24A2 heads. im not to familiar with which k24 comes with which car and which one i should be getting for the most gains? thank you Mar 30, 2022 · Just looking for what numbers to expect. Eh worth a shot. For openers, ARP. With applications for both K20 and K24 engines, these housings will provide several unique advantages over the stock units. 0:1 SC7045 at the best online prices at eBay! Free shipping for many products! Here is the K-Tuned Upper Coolant Housing. The K20 revs higher, but it has less torque. We eat, sleep, and breathe Cylinder Heads, and day after day continue to push for new developments. I'm pretty new to K-Series so give me your opinion on my build and the downfalls. Simply stated, there's not a better stud setup on the market today. Precision is paramount. I noticed a comment from couple threads I passed through (not verbatim), "why does every dyno graph illustrates power stops before mid8K rpm for K20/24 build?" Here are some answers I found of why the build does not allow the Jan 6, 2010 · good pm k20a. Feb 17, 2009 · Honda K-Series Engine Compression Ratio CalculatorThis calculator is intended for use as a general estimate of your compression only. Enjoi=] Subscribed 4. Still the best looking, best fitting (leak free!), and now the least expensive! If you are using the Skunk2 manifold, which is designed for the K20 cylinder head - you will need this adapter. The naming lineage is straightforward - bolt a K20 head onto a K24 block and a K20/K24 is born. The z3 head was the right choice, z1 is the same as a2 with the water port on the front of the head and not the side. For an easy bolt on, we chose the K20Z3 head. Apart Aug 18, 2023 · The K24 is a larger engine with a longer stroke that provides more torque in the lower RPM, at the tradeoff of a higher RPM ceiling. For you, I'd recommend a K20Z3 or K24A2 head with RBC intake manifold. But this can be put to use with the K24A1, A3, A4 or A8. To avoid damaging the cylinder head, wait until the engine coolant temperature drops below 38°C (100°F) before loosening the cylinder head bolts. 99 Ferrea 6000 Series STD Size Valves Fits Honda K20 K20a2 K20z3 K24 Engines Ferrea $359. :) Intake valves 14711-PRB-A00 - 35mm - K20A2 RSX-S (02) 14711-PRB-A01 - 35mm - K20A2 RSX-S (02-06), K20Z3 Civic In this video, I compare the k20z3 to the k24a. Sep 27, 2019 · A K24Z3 cylinder head doesn’t flow quite as well, but the single exit exhaust port makes adapting a turbocharger that much easier. K20 and K24 parts from best quality camshafts to racing crate engines May 22, 2008 · Background: These pics will be from my swap which consists of a K24A2 (TSX) bottom and and K20Z3 head and external components. May 31, 2010 · Hi guys, I was building a K20Z3 engine, until I came across with a K24A4 block with internals. Here's my build K20a2 Head ~ -Skunk2 Ultra Series Valves (High Compression) -Skunk2 Pros With hundreds of models ready to ship, these cylinder head fasteners can be ordered for virtually any style engine. Thanks. uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Honda’s K-Series engine is one of the best 4-cylinder engines ever built, and it offers incredible aftermarket potential as well as support. is everything bolt on?if not,what do i really need to buy to have a bolt on swap? will i have a problem if i only use a Dec 25, 2006 · k20z3 head with k24a2 block block head k20z3 k24a2 Jump to Latest 7. Ensuring the new power plant maintains all original 8th gen Civic Si hoses, belts, and harness with no modifications allows for easy part sourcing and future K Series - Official: K24 block, K20 head build info - I'll start: k24a4 block 2009 TSX 11:1 Pistons 2006 TSX Rods k20z3 head PNP by me, RLZ Valve Job k20z3 cams K20a Intake Manifold and Tbody This is a 100% HONDA part build minus bearings. 99 OEM Oil Pump Chain Guide Tensioner for Acura RSX K20A K20A2 K20A3 K20Z1 Engines OEM Honda Get the best deals for K20z3 Cylinder Head at eBay. Call or email us for more information. 99 12+ In Stock Oct 10, 2024 · Thinking about swapping a k20z3 head on my k24z7. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction. jpg 50. This is the head found on the 2006-2011 Honda Civic Si. I'm probably going to replace the valve springs with stock ones since they have 80K miles on them. jpg 108. NOTE: Use fender covers to avoid damaging painted surfaces!! To avoid damage, unplug the wiring connectors carefully while holding the connector portion. 72 (10%) In Stock Nov 9, 2012 · Trying to determine which head gasket I should use on my build. Pre06' K24A1 block and head's have the same layout as the K20A2, so if you use a K20A2 head on any K24 you should use a K24A1 headgasket and make sure the divertor isnt installed. This is helpful when compared to the fixed the factory outlet that always seems to put the upper rad hose in the path Jan 1, 2019 · Yes also heard of a few with the k20z3 head & someone with a k24a2 head so came a across a k24a2 head for a steal so wanted to try it out Sent from my SM-J727T1 using Tapatalk Feb 24, 2013 · How many kept the RBB-3 (1mm over) head and how many swapped over your k20z3 head? I did see quite a difference on a few different builds that used the k20 head and saw up to 20hp gain (K20a. 7 KB Views: 2,851 K20Z3 Head Parts List. If you get a K20A/K20A2/K20Z1 head, you'll need to modify the RBC intake manifold where it meets the head. Apr 20, 2012 · Thay do so coz they dont have k24a2 engine. K20A/Zx engine applications: K20A, K20A2, K20A3, K20Z1, K20Z3. Then all head bolts are torqued 90 degrees, then another 90 degrees. 52 Save: $10. If you are planning on going turbo on a stock block a cheaper k24 from a crv or accord will suffice as the has a lower compression ratio. Unfortunately I DONT KNOW what k24 I have as its a JDM engine and stamped K24 only. Will update first post as more info comes in. Jan 24, 2013 · Would the flow of the K24 head be different if I run the VTEC killer setup since its only running a larger vtec lobe all the time? I don't know how to relate flow rates to horsepower. Dec 22, 2007 · Yeah, mostly the head and compression. com. Apr 16, 2012 · - 205 HP / 164 TQ 4. 5 Jan 15, 2009 · If its a swap and go, the k20z3 would be a more responsive engine out the crate. I was thinking of pulling the head off of the k20 and using it on the k24. the new k24 has the exhaust manifold cast into the block so you cant do a "header" except you are now a "r18" and can only bolt up a "downpipe" this new k24 isnt really good. I am looking to do the k20 head on k24 block set up. We have been questioned on our power goals. Both have their peculiarities, advantages, and disadvantages, as well. 2. Feb 8, 2009 · hey guys,i'm new to the k20!i have an FA body(r18 engine,sold it) and i want to do a k24 frank. org! i'm planning to build an all motor set up and as of now, i have the ff: k24a1 block k20z3 tranny engine harness for k24 a2 oil pan k24 timing chain RBC IM the engine i had before was for an r18 but its gone 1)do i strictly need a k20z3 head and SI ECU (+flashpro) for the car Find many great new & used options and get the best deals for 06-11 Honda Civic SI K20z3 Cylinder Head Assembly OEM Engine Motor K20 RBC K24 at the best online prices at eBay! Mar 30, 2008 · just like the title says i im takin apart a k24 my first k motor i took the head off the motor and saw this black thing in between the sleeve and the block wat is it and wat is it for???? Nov 29, 2010 · Hey everyone. I am looking to hit close to 700hp. 5" intake, 2-3/4" exhaust, Skunk 2 RH, stock K20Z3 head, A4 block, A2 rods, and 09 TSX pistons. Either K24A1 or K24A2? Build includes: K24A1 block K20Z3 head 87. Hers's a thread to help familiarize yourself. Budget friendly, good horsepower and torque. 2 KB Views: 2,853 K20Z3 Head Pic. jpg 79. Nov 1, 2005 · K24 Engine Block/K20 Cylinder Head Build - 2. Sep 6, 2017 · K20 Head Gasket (You must use the K24 head gasket due to the increased bore) You will also need a service manual for one of the K24 motors or K20A2 for all the torque specs. 6mm Exhaust Valve Upgrade Kit for the Honda & Acura K20 K20A K20Z K24 K24A Engines Supertech Performance $674. May 7, 2013 · Thinking about swapping a k20z3 head on my k24z7. 0 liters, while the K24 has a capacity of 2. Feb 5, 2014 · Looking to build a K24a2 bottom block with a k20a2 head for a school project in the summer. it will probly be cheaper. Except when K20z3 heads were going for 300 dollars Aug 13, 2012 · K20z3 coolant diverters? acura tsx head gasket k20z3 civic si over bored block 1 reading Jump to Latest 16K views 24 replies 5 participants last post by Fg2_FrAn Nov 19, 2014 Sep 14, 2007 · You wouldn't use the water port, you'd block it off on the K24. Same for k24a’s. 8 KB Views: 2,858 Feb 2, 2011 · Hey Guys- I blew my motor out xmas day (long story short. 9 KB Views: 2,862 K20Z3 Valvetrain Pic. This material is heat treated to provide a tensile strength in the 200,000 psi range and is an excellent choice for building your high revving all motor, or forced Induction Find many great new & used options and get the best deals for CP Pistons K24 K24a2 Block with K20a K20a2 K20z1 K20z3 Head 87mm 9. Mar 22, 2011 · The head cc will be very close to the same size. com Dynojet 224xLC Load Control Dyno Tuning FG2 Civic Si K20Z3 Head K20Z3 Stock Cams 50* VTC Cam Gear JMD K24A "TSX" Bottom End with RSX-S Details ARP Head Stud Kit - Honda/Acura K-Series K20 K24 - 208-4701 Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. Does anyone know the exact reasoning for this? I've been doing a little research here and there and Honda / Acura K Series (K20 & K24) PistonsCP, JE, Wiseco, Supertech Piston Rings Set for Honda - Acura K20 K20A K20A2 K20A3 K20Z1 K20Z3 K24 K24A K24A2 K24A4 K24A8 Engines CP Pistons $99. Kit includes: - Supertech 80lb Dual valve springs + Titanium retainer kit - Supertech 5. ARP Head Studs for Honda / Acura K20A, K20A2, K20A3, K20Z1, K20Z3, K24A1, K24A2, K24A4, K24A8 & K24/K20 Engines Obtaining the optimum cylinder head to block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. If you are considering a future build (head & block) with any of these motors, I would go with the k24a2. Set includes studs, nuts, washers, and assembly lube. I'm doing it because I've heard everywhere that that's the best bet for na power. 5mm stem - Ferrea 6000 Series Competition exhaust Sep 6, 2007 · 162. 4 We swapped to an earlier model K20Z3 head to get Vtec on the exhaust side and a removable exhaust manifold. Should i do it or not? Please tell me the disadvantages and advantages. This was for my k24/k20 Build. :shady and car was just sitting there. You can also use DSS 2. Another good thing is that it has a conventional exhaust manifold so we can bolt up a trick 4-1 tubular turbo manifold. 5 : 1 compression ratio - 180 HP / 161 TQ My first question is, what RPM limit can be run safely on a stock K24 bottom end like these? I know that the K20Z3 head can be run to 8500 RPM safely, but I doubt that the K24 bottom end can do this. 5:1 compression, stock port k20z3 head with skunk2 stage 3 tuners, 265 fuel pump, 650cc injectors. K24Ax engine applications: K24A1, K24A2, K24A4, K24A8, and K24/K20 builds. Its usually cheaper to build frank using used cheap CRV block and k20 head then to buy complete tsx engine. ERL Built Superdeck K24 A4 Engine Block (99x87) Wiseco 9:1 Pistons Crower H Beam Rods (750hp rated) ARP L19 Head Studs for Honda - Acura K Series (K20 & K24) Engines ARP $359. Just need to get a different nut and bolt. Please allow 30+ days for completion upon DRS receiving the head. The process of removing your K24 cylinder head involves relieving the tension of your timing chain, removal of your camshafts / rocker assembly, and DRAG CARTEL INDUSTRIES run by Jeremy Lookofsky, performance K-series Honda engine builder. Per my search there seems to be a mix of these in high hp setups. Jun 11, 2017 · Hey, did the k24a2 timing cover fit for this head swap? Have a '12 si and a 06 TSX part out car, engines healthy , was debating on swapping the k24a2 head to the k24z7 block, I know this is old but . 50 I wanted to know what size head gasket is acceptable? Does the bore size of the gasket adversly affect the sealing of the Head? For example, Cosworth makes a 89mm gasket for the K20 Head and Cometic makes a 88mm. the race vehicle honda uses is a k24 bottom and the k20 head - ARP 208-4701 Head Stud Kit for Honda Acura RSX EP3 Civic K20A K20A2 K20A3 K20Z3 Brand New · ARP (8) $169. See full list on hondatheotherside. Everything has Jan 23, 2010 · I'm just curious about OEM valve sizes. 99 Jan 4, 2006 · hi guy i have a k24a1 long block that im gonna swap into my em2 soon. 5mm bore. finally got money around and got good deal on a k24a2 head and k20z3 complete short block (unique build and rare if i think about it) so anyways we got everything together had to buy here and there parts (hoses,rbc&adapter,a2 oil pump/plate/pan,etc etc)Didnt really Other engines featuring the same head configuration include the K24A2 (TSX) that features a 9. Im going to swap the head for a K24A2 head and swap valvetrain for bc kit and stage 3 cams. My questions are : Is the Z3 water pump, oil pump and pan ok and Jun 4, 2009 · just use the k20z3 head if you're running a k20 block. 95 Supertech Performance SFWD 6. I had the option to build my replacement motor which was a 2. DRS port and polish service to Honda K series cylinder head. Apr 13, 2012 · it has the wrong k24. for internals May 26, 2011 · Drag cartel cams * built k24 bottom * k20z3 head bottom built cams cartel drag head k20z3 k24 Jump to Latest 3. Ive already bought wiseco forged pistons 11:1 compression and brian crower lightweight rods. Dec 4, 2022 · K20/K24 Hybrid Engine Build Guide This engine buildup consists of a 2. Understand? Mar 9, 2007 · i currently have a 2006 civic si and was thinking about getting a k24head to go along with my bottom end. 95 OEM Timing Chain Guide Set for 2002-2011 Honda & Acura K20 K20A K20A2 K20A3 K20Z3 K20Z1 Engines OEM Honda / Acura $249. 9 The Honda K-series engine is a line of four-cylinder four-stroke car engines introduced in 2001. And whatever else I'm forgetting. Mar 17, 2008 · The other differences between the K24 applications, most notably the presence of EGR, used on the Accord and the Element, and a variable length intake runner system, found on the CR-V, are irrelevant since we're not using the K24 head. 4 Liters Untamed Autowave builds a poor man's TSX motor for swapping into an EM2 Civic chassis. The k20a cylinder heads have it on the front and the two use different upper rad hoses. For 2 years on and off, I researched the cylinder head swap, dubbed the “frankenstein. 4 Installing Built K20z3 head onto K24a2!!! Choosing The Proper Intake Manifold For Your Honda K24 || All Motor Stock K24 Sep 19, 2015 · They'd use a k24 bottom end from an accord/crv to gain extra torque and used the k20 head off their k20z3 engine. Cus I know the b series engines were like 90 ft/lbs. So I'm building the engine for my 2015 Civic Si using 12. An easy rule of thumb is that a head gasket matches the head its designed to work with. I am using a K24 Block bored to 87. 114" deck height, the K20Z1 in the 05-06 RSX-S that includes various JDM Type-R add-ons like cams, throttle bodies, higher compression and Honda's answer to the tuning crowd, the K20Z3 found in the 2006-up Civic Si. :wwhat: It is for good reason that virtually every top professional engine builder relies on ARP. 25 Note: Will NOT work with K24Z and K24Y Series Engines Will NOT work with K24A1 May Have fitment issues with turbos depending on size of turbo and manifold Rad cap is not included There is fitment issues with the K20 Upper Coolant Housing and Jacks The OG water bypass adapter! Imitated but not duplicated. on some k24 setups, the k24a2 head and intake manifold were more beneficial. 4 Piston Racing is your one stop shop for High Performance Cylinder Heads. People are making 500-600hp with this set up but if you want to make more than 400 should consider forged pistons, etc, maybe even sleeving the block. 89 When you’re refreshing that high-revving K-Series, the last thing you want is a leaky seal between block and head. I recently bought a K20A Civic Type R Head K20Z3 to put on my K24 TSX, would it bolt straight up and what gasket would I Jun 25, 2010 · I am not certain where you came up with that and no a stock tsx wont pull a stock type-s but that doesnt mean necessarily that the K20 is superior engine to a K24. Thes In the last edition of our series, building the ultimate streetable late model K24, we had focused on the engines top end switching to an earlier model K20Z3 head with Vtec on both the intake and exhaust sides of the engine and a removable exhaust manifold – all big steps in getting more performance. 5:1 compression pistons I-Beam IB connecting rods here is a list of what i think i need: k24 head gasket k20z3 coil pack and plugs etc k24 water pump k20a2 oil pump and pan k20z3 clutch and flywheel AEM Fuel pressure regulator arp head studs k-pro header axles mounts rywire conversion harness k24 alternator k24 starter eg radiator and fan $105. Aug 12, 2011 · Ive been geeting alot of feedback on different set-ups to run with k24a1/2/4 blocks. K20 vs K24: Racing Performance Precision-Ground for Perfect Alignment Superior Strength: 190,000 PSI Heat-Treated Proven Reliability in High-Performance Engines Fits Most K20 and K24 Engines Description Vehicle Fitment Technical Data Included Top professional engine builders swear by ARP Pro Series head studs for their high-performance engines. Here is the best Information about K motors - K20A. The K24a2 comes with a 25* vtc gear. OR get a K20z3 head which is very similar, except it does have a water port. What else will I need for this build? Any Aug 16, 2012 · Guys, I am planning on a boosted k20/24 with a goal of 750-800hp. In today’s video we install the built K20z3 Head onto the k24a2 block for the K20/K24 swap EK Coupe, with a quick breakdown of what aftermarket parts were used in the K20z3 head. The stud design helps the head and the block equalize the pressure better thereby creating a much more even and consistent seal. Part 3 documents the head to block fitment / issues. Dec 24, 2009 · im sure the k20a head would be better stock, but youd be better off finding a spair OEM k20z3 head and doing a complete spring/retainer/cam job on it. Aug 4, 2015 · Here it is, the first Frankenstien swap that I'm aware of. Reusin Description K20 / K24 Valve Train package. 6K views 24 replies 2 participants last post by Lotus Sep 24, 2025 The K20A/A2/A3/Z1 & K24A1 (CRV) cylinder heads all have a 90 degree water neck coming off the front right face of the cylinder head (to the right of intake port #4). I'm going to start collecting some info here. Just double checking the info before I build - seems like 28 ft/lbs ain't much. 2 cams, adjustable exhaust cam gear, 50 degree VTC, ported K20Z3 head, full Supertech valvetrane, Hytech 4-2-1 header, RBC ported intake manifold, 1,000 cc injectors, Manley rods, InlinePro head bolts, Type S ported and cut oil pump. The differences and similarities. Think of it as simply cutting the factory manifold. Dyno tested with up to 300 Hp Naturally-Aspirated. All i have left now is a rebuild kit and a tune which will be hondata kpro. So, if you put 88mm K20 12. 4K 276K views 6 years ago crank part 1 - • K24 crank install (part 1) crank part 2 - • K24 crank install (part 2) pistons part 1 - • K24 piston install more Replace your stock head bolts with ARP heavy duty head studs. 75in invidia n1 Jul 23, 2017 · Could someone please explain what the differences are between these two heads k20a2 and the k20z1. ) K24Z6 (out of a 2012 CRV) - 7100 rpm limit - 10. shaft/if K20 int. 5:1 pistons RSX Type s oil pump - Do I need oil filter blockoff if its staying in the TSX? Manley H Nov 19, 2014 · K24/K20 Build! Every Step to DO the Build. 4 liter bottom end and one of 2 different combinations of heads. The TracTuff K20Z3/K24A2 water bypass adapter allows RAA, RBC, RBB, and RSP cylinder head owners to run the more popular aftermarket intake manifold options that were designed for the earlier PRB/PRC flange. Jul 20, 2011 · Re: Complete 300whp k24a / k20a2 guide hey man! any update? i got few question might find stupid but. Is there any major advantage or disadvantage to a port and polished head. org) and others that used the RBB-3 head and made 260whp+ does any one know what head flows better as FACT with cfm #? Also besides power. Just a quick question. Oct 31, 2010 · The studs and bolts running up and down (and not into the engine block/head) are thinner than the K20Z3's but it'll still work. I have BC stage 2 cams already. 5mm bore with css Wiseco all motor 12. Hytech Header SVM Cams The main pros to the k24a2 are the compression ration. for now,i just want to do a stock k20z3 head with a stock k24a8 block swap. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. This month we look at the bottom-end build, fortified K20 head / K24 block hybrid - is head dependent. The advantages to swapping on a K20 head is to gain the 3 lobe vtec and to have a 50 degree vtc gear. The casting for this head leaves alot of room for porting which would dramatically increase the flow of the head. dycp tjrgzanq abdkt qdmyga ssto khfuw rozeu biafkjh tatiy syh mjeedt aqf xhjyq bzkg ourdepq