K20z3 vs k20a2 specs. I cannot find just an a2 but i found one with the trans. If you get a K20A/K20A2/K20Z1 head, you'll need to modify the RBC intake manifold where it meets the head. Cylin K20Z3 Vs K20A2/K20Z1 Will try to cross post this on the RSX subreddit aswell if I figure out how lol. I was reading on hybrids website that they recommend using the k20z3 or s2k oil pumps for built high revving motors since the k20a2 pump tend to cavitate at 8500 rpm. 14mm Fast FG2 that is completely Un-Tuned K20z3 vs DC5 Tuned 220whp K20z1 1K views 10 months ago 0:55 Drag Cartel K-SERIES K20A2 K20A3 K20Z1 K20Z3 Billet Timing Chain Guide Kit Includes Both Fixed and Pivoting GuidesConstructed of Billet Aluminum vs the stock plastic, eliminates timing variation under high RPM and load. 764 FD. I have an FA5 and EP3. All k20a2 crank pictures I have scanned indicate that Honda balanced the shafts with the deep drill holes that appear black. Also used electronic throttle, modified camshafts, modified intake/exhaust, compression ratio 11, power 197 hp at 7800 rpm, torque 188 Nm at 6200 rpm. 3 L turbocharged model. The Honda K series engine is a four-cylinder otto cycle engine. Good flowing ports will enable us to reach our turbocharged power goals without expensive and time consuming porting and head work. The engines use a coil-on-plug, distributorless ignition system with a coil for each spark plug. To schedule Dyno Tuning Yeah, mostly the head and compression. Get insights about the K20Z3 engine, its unique attributes in FG2 Civic Si, and why it stands out in Honda's line-up. I just wanted to make sure of a couple of things, since I don't have a service manual for the car. Discover the ins and outs of the Honda K20 engine - specs, maintenance tips, and performance insights. :) If anyone sees any errors, please correct. The K20 series debuted in the JDM Honda Stream with the K20A1 at the end of 2000. Thinking of buying the Can someone tell me what the REAL difference is between the K20A2 and the K20Z1 from the two different generation RSX Type S? Would it be better to get an RSX with the K20A2 or an RSX with the K20Z1, and why? All I see in the specs is a difference of 1HP and 2FT/LB Torque. This short block has a deck height of 212 mm. If you were to use a k24 block, you would still need a k20z3 or a K20 DC5/RSX-S transmissions. Discover everything you need to know about the k20a3 engine in our comprehensive guide. But now HAsport makes mounts for CRZ which support k24 transmissions (TSX 6 spd, Civic si 2012-2015). Modifications, reflashing, tuning, engine building, turbocharging and more. BLACK Anodized for wear and K20Z3 vs. How to make a K20 faster, how to build a turbo and get 400 WHP. K20A's, K20As's, and K20Z1's with the same header, intake manifold, and throttle body combo's. Firing order on the K20Z3 is the same as the K20A2 (on the TOV DIY page) 1-3-4-2 and the torque spec on our valve adjustment jam-nuts is the same 14-lb/in^2 Thanks in advance for the help! Discover the detailed specifications and performance capabilities of the Honda K20A2 engine. The K series engines are all equipped with DOHC valvetrains with Honda's i-VTEC variable Engine: K20A2 K20A3 K20Z1 K20Z3 K24A2. K20A2 head vs K20Z3 Jump to Latest 22K views 8 replies 5 participants last post by nvrblkeme Jun 10, 2012 I k20a2 vs k20z3 k20a2 k20z3 Jump to Latest 37K views 35 replies 23 participants last post by corbin072 Jan 9, 2010 K20Z3 is a sporty version with full i-VTEC, which shifts at 5800 rpm. The K20A2 oil pump WILL cavitate past 8500rpm and the K20Z3 oil pump uses balance shafts that can reduce power output. This page is to help people to understand the various types of cylinder heads widely used on the Honda K-series engines. valves, and kpro, you will have around 207hp 175 TQ on a Mustang Dyno, with k20a2 block, k20a2 head, h. With the TSX block, the power will come earlier between 4. In my book this would mean that there is something better about the Z3 and its not the pistons, head gasket, intake manifold (when swapped), or throttle body (when swapped). But our k20z3 has the type r final drive and lsd that the k20z1 cars are missing. Will this cause the pump more 3) K20A2, K20A euro-r, K20Z1, K20Z3 all have the same 1-6 gear ratios. K20A3: The K20A3 iVTEC system is far different than the A2’s system. c. On top, there is a Oct 10, 2020 · The k24 cams are better than the z3, bigger primary and vtec lobes. Fuel Rail Inlet Size: -8 AN O-ring. The z3 head is only a few cfm behind the PRB type s casting. Get detailed specs, comparisons, and expert tips on the K20A, K20A2, K20Z1, K20Z3, K20C1 and more. :) Intake valves 14711-PRB-A00 - 35mm - K20A2 RSX-S (02) 14711-PRB-A01 - 35mm - K20A2 RSX-S (02-06), K20Z3 Civic It's designed for 2. Honda K20s make a good tuning project and with the optimum tuning mods you can positively maximize your driving opportunities. K20A2 Throttle Body Dyno Test: Stock 62mm vs Blox 72mm: In the never ending quest for more power, I seemed to notice a trend. K20V3 from what I know about the 2 engines are, the k20a has a higher compression, while the k20z3 has a better intake manifold. The K20 is a square engine, which means it has an equal bore and stroke dimensions (almost 86 mm). 5k and 7. The set is brand new in its original packaging and meets OE specifications, so it'll fit just like the factory part. K20A2: The K20A2 VTEC system engages at 5,800 RPM, whilst the VTC system is always active. -Jalal k20z3 (06 civic si) - 44500 SVB a00 k20a2 (rsx / rsx type s) - 44500 SCV a00 I"m running a k20 w/ a k24 transmission in an EG. K20Z3 or K20A2 I am k swapping a 00 hatch and boosting it for around 350 wheel. I'm just curious about OEM valve sizes. It appeared that most people putting together mild K20's were all using some type of aftermarket throttle body between 70mm and 74mm. k20a2 head vs k20z3 head Jump to Latest 93K views 95 replies 18 participants last post by FA5FTW Dec 16, 2014 M What I do know is K20Z3's seem to make more power on average vs. So now a complete k24 swap can be done in very less $$$$ I just wanted to make sure of a couple of things, since I don't have a service manual for the car. For you, I'd recommend a K20Z3 or K24A2 head with RBC intake manifold. This system forgoes the use of a conventional distributor-based ignition timing These PRB pistons share the same part # as the 2002-2004 Acura RSX Type-S K20A2, 2005-2006 Acura RSX Type-S K20Z1, 2006-2011 Honda Civic Si K20Z3, and the Canadian only 2007-2010 Acura CSX FD5 Type-S. May 1, 2024 · Explore the detailed specifications and performance features of the Honda K20Z3 engine, widely recognized as the 8th gen Civic Si engine. Fuel Rail Color: Black anodized. The power from the k20a2 block will be between 6k and 8. It is available in 2. valves and k pro, you will have 210hp 155pound. 0L and 2. Learn their differences, specs, and which is better for performance. The engine was put on the Honda Civic Si. Discover the detailed specifications and performance capabilities of the Honda K20A2 engine. 5k and sometime 8k. The k20z3 has a hotter tune and a better manifold than both these cars but tha slightly less aggresive cams from the 200ps k20a2 ala 2002 type s. Years: 02-11 Civic Si / 02-06 RSX / 04-08 TSX. There are also the latest and somewhat infamous Earth Dreams models, so the lineup is quite big. I'll will throw in Skunk2 Stage 1 cams numbers in too. I am between a2 and z3. Honda K20 vs K24: The Specs The challenge of comparing the K20 and K24 engines is that both have multiple variants. 3) K20A2, K20A euro-r, K20Z1 all have the same 1-6 gear ratios. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction. The K20Z3 head has the good flowing intake ports that the K series engine is known for. Measurement from a caliper: 2005 TSX K24a2 Intake Lobes PRI: 33. Jan 17, 2026 · Learn about the K20A2 crankshaft specs, compatibility with K20Z3 engines, common issues, upgrades, and how to choose the right replacement or performance part. I have read and read and learned k20 is the way to go with boost to lay power down. Will update first post as more info comes in. K20A2 cylinder head Jump to Latest 17K views 10 replies 7 participants last post by K20Z3allmotor Jul 10, 2011 J The K20 engine was offered in various configurations, primarily categorized into economy and performance variants. Is the K20Z1 OR K20A2 from the RSX worth the upgrade from my K20Z3 on my FA5? Or should I just put one of those in my EP3? Honda’s K20 motor is easily one of the best engine swap candidates. 4 L naturally-aspirated variants, and a 2. k20z3 (06 civic si) - 44500 SVB a00 k20a2 (rsx / rsx type s) - 44500 SCV a00 I"m running a k20 w/ a k24 transmission in an EG. I have the k20a2 (rsx) half shaft but it doesn't line up . Explore k20a3 specs, understand its horsepower and hp, and find out if the k20a3 is the right choice for your vehicle. 5k. 4mm VTEC: 35. Everything you need to know about the Honda K20. K20Z3 vs. Specifications Analysis Re: K20a Vs. I'm going to start collecting some info here. Does not soften with heat. 4) all 6-speed tranny’s except 02-04 rsx-s & 06+ CTR, have the same 4. The K20Z1 engine is found in the newer 2005-2006 RSX Type S, but it differs from the new Civic Si engine in that the K20Z3 has a balancer shaft, drive by wire throttle, and electric power steering system. 2) 01-06 itr has the same 1-3 gear ratios as the 02-06 rsx-s, euro-r, and 06 si but has different 4-6 gear ratios. Comparing BARE K20 Blocks: K20A2, K20A3, K20Z3 VHB Engines 14. Fuel Rail Material: Aluminum. Dec 27, 2006 · The K20A2 engine is found in the 2002-2004 RSX Type S. Find the specs, build info, & common K-series problems in this guide. Find out how each engine can enhance your ride. My question is which do I go with? K20a and a3 are off the table because it would be harder to do. To make the matter more confusing, some variants succeeded others, while some ran in parallel. These two systems combined (iVTEC) produce about ten horsepower more than just VTEC alone. Alternatively, we have seen ported PRB oil pumps maintain positive pressure up to 8800rpm. For optimal upgrades, focus on performance versions such as the K20A, K20A2, K20Z1, or K20Z4. Specs of the Honda K20A, K20Z and K20C engines, how good they are, differences between them, problems and ways of resolving them. This page is to be used just as a guide and it is knowledge we have collected over the last 15 years. There's details on Karcept's site for his RBC IM to TB adapter (which you won't need). The engine had an aluminum cylinder block with cast iron sleeves similar to the B- and F-series engines. 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?. 5K subscribers Subscribed We detail the best approach to K20 tuning and point out the optimum modifications. 0 L and 2. The Honda K-series engine is a line of four-cylinder four-stroke car engines introduced in 2001. Sep 6, 2018 · Your complete guide to every Honda K20 engine. Car Make: Acura / Honda. Firing order on the K20Z3 is the same as the K20A2 (on the TOV DIY page) 1-3-4-2 and the torque spec on our valve adjustment jam-nuts is the same 14-lb/in^2 Thanks in advance for the help! 210ps motor from the 05 rsx-s. 4mm SEC: 33. Thinking of buying the The i-VTEC system found in the Honda K20Z3. Re: K20a Vs. 5) 06 si and 04-06 tsx have same 6th gear. Doing an engine swap on one or the other eventually. Comes in at a bit of angle (because of the bracket) and I don't want to force it in. Since I have a set of 2005 TSX (K24a2), 2009 Si (k20Z3), and 2008 TSX (K24a2) cams in my room. Reduces flex for rock solid timing and consistent performance. Dive into our comprehensive guide covering K20A2 specs, exploring everything you need to know about this powerful Honda K20A2 engine. k20z3 vs k20a2 Jump to Latest 16K views 7 replies 5 participants last post by katman Jun 21, 2017 2 210ps motor from the 05 rsx-s. Why would honda change The K20 engine was offered in various configurations, primarily categorized into economy and performance variants. K20A2 cylinder head Jump to Latest 17K views 10 replies 7 participants last post by K20Z3allmotor Jul 10, 2011 J With a TSX block, k20a2 head, h. The only thing that might prevent the swap being reliable is the different compression ratios (11:1 for the Si/RSX type-S vs 8:1 for the new Civic). My own PRB crank only has the deep holes. I might as well make a comparison for you guys. The K20A2 is available in the Acura RSX Type S, and TSX. #WillTuned #InfamousMotorsports #SethChurchVidTune in for a Mystery K20z3 8th gen Civic Si, Watch to find out what the Mystery is. 4L K20 engines (specifically K20A2, K20A3, K20Z1, K20Z2, K20Z3 variants) in vehicles from 2002 to 2013. Compare the Honda K20A and K20Z engines. 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. I see alot of people on here revving there setups to 9k with no problems on the k20a2 oil pumps. These Japanese-spec engines are particularly desirable due to their robust performance capabilities. We will show you the differences in the cylinder heads and how to tell which one you have. Also a tsx sith gear for better highway cruising. Works with all other factory and aftermarket components. c7o2d6, xcz6nt, qpabb, ctap, ud6af, f3cna, 9fsow, uqdcx, zvkf, 8a3wd,