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  1. 8th generation Civics 2006+
    I am missing a bolt in my transmission. Car is a 2009 Civic SI (k20Z3). I can't seem to find it on any of the Honda parts websites and I was hoping someone knows part # so I can order one asap. Picture below. missing bolt under the speed sensor. I think its for the reverse shift fork but...
  2. General K-series related talk
    i have a rsx type s with k20a3 block. k20z3 cylinder head complete. type s transmission, type s ecu, type s intake, type s harness, type s oil pump, a friend offers me some k20z3 pistons and crankshaft, they fit in the k20a3 block, do I need k20z3 bearing bushes? without what they sell me the...
  3. Video Gallery
    Hi im new to the forum. This is my first build/swap. I just finished building a K20Z3 for boost and swapped it into my base RSX. -Supertech dual valve spring kit -ARP head studs -Wiseco 9.6:1 pistons -King bearings -Skunk 2 Alpha connecting rods I put together a video with the pictures...
  4. General K-series related talk
    Buying parts for my future K24/k20 frank, and I found a great deal on a k20z3 head near me. Problem is, it’s missing cam gears. Can i swap the cam gears from a set of a3 cams I have lying around and be fine?
  5. 1992+ Civic EG / DC2 / EK K-Series Swap
    Hello! Just swapped a K20z3 into my EG and car is pretty much in limp mode. Car starts up right away but idles up and down. Go to drive it and only goes to 2.5k rpm and is like bogging. Car is getting fuel. Just calibrated the TPS sensor and installed a new IAC Sensor. Loaded a K20 Itr map...
  6. United States of America
    Hey!! I have a 98 ek Type s 2005 engine harness Can I use 99-00 conversion harness??? Car is obd2a (96-98) and conversion harness is was on obd2b (99-00)
  7. General K-series related talk
    Anyone know the difference between the k20z3 oil chain tensioner vs the k24a's? Here's some part numbers for reference: K20Z3 - 13450-RBC-004 K24Ax - 13450-RAA-A02 I realize they're different part numbers, I'm pretty much asking because of the price difference and if there's a...
  8. General K-series related talk
    Hello I was trying to see if I could swap the internals out of my k24z7 trans into a k20z3 case with no problem or would I have to change the bearings to k20z3 bearings. I would like to know if they shared the same bearings, thank you.
  9. RSX Builds
    Hello everyone. I have a k20z3 swap and a 03 rsx type s shell. Wondering what more I would need to make this swap possible or if it can even be done? I have the full swap. Looking for all and any help to make this happen thanks 🙏🏼
  10. Engine Building
    Hi all, I'm pretty new to all this stuff but I'm learning as I go. I'm trying to create a pretty decent NA build overtime but I'm not 100% sure on some things. I just purchased skunk2 stage 3 cams along with titanium retainers and new springs. I plan on buying a new chain and tensioner as well...
  11. 2001+ Civic EP3 / RSX DC5 / EM2
    Please move post if I posted it in the wrong area I’m new here. What’s up I need help I k24a2 swapped my 07 fa5 am running into issues. I have engine code p1009. I cleaned the vtc solenoid and got a new vtc filter. Tested vtc with 12v and it’s not stuck. I swapped the 50 degree vtc from my k20...
  12. 1992+ Civic EG / DC2 / EK K-Series Swap
    I'm currently working on finishing my k20z3 swap in my dc2. I having problem finding information about what is needed to get the speed sensor to work. I'm running a k pro with a k tuned harnes.
  13. General K-series related talk
    Hello everyone! New to k20a.org and have a question about my current car that i paid $1000 for running driving but was given little info on when purchased from a friend. Car is a 2006 Civic Si coupe that when i purchased i thought it had original motor and trans, until i went to adjust the...
  14. Wiring and Electronics
    HELLO FORUM MY NAME IS CHRIS IM NEW TO THE K SERIES SCENE CURRENTLY DOING A K24A2 BLOCK WITH A K20Z3 HEAD I WAS TOLD THAT THE EP3 HARNESS WOULD BE ABLE TO RUN MY SWAP IVE ALSO BEEN TOLD THAT THE EP3 AND RSX BASE SHARE ALOT OF SIMILARITIES SUCH AS AXLES SO MY QUESTION IS COULD RUN MY SWAP WITH A...
  15. General K-series related talk
    I am in the process if rebuilding my k20z3 and i ran into a possible issue regarding the crankshaft. I had measured the rod bearing journals and they were larger that the factory engine measurements in the si supplement in the repair manual. If anybody knows the answer to my confusion then...
  16. Parts for sale
    K-Swap Part Out, K-Tuned, Rywire, Exedy, etc. Need everything gone before September! Prices are dirt cheap and priced to move, as such, prices are firm. Parts are located in Hamilton, Ontario, Canada. Prices are listed in USD as this is predominantly an American board! Everything is available...
  17. General K-series related talk
    Hi everyone, I'm new to the forum here and I'm looking for a little bit of help ID'ing an issue that has cropped up. My FG2 with about 95k miles on it has developed a nasty ticking noise, I haven't been able to locate where it's coming from, even with a stethoscope. Additionally, at idle...
  18. Wiring and Electronics
    hey guys, having a little issue with my K-Tuned vss converter, so i installed it after a little help from the guys over at rywire clearing some things up about my harness, anyways heres my setup and whats going on; K20z3, 02-04 Rywire harness, PRB ecu, K-Tuned vss converter, kpro v3. Kpro gear...
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