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Discussion Starter #1 (Edited)
Today I'm selling my K20z3/k24a4 "Frankenstein" engine I built in the winter of 2015 for my 2007 Honda Civic Si. This engine has worked flawlessly for approximately 15k miles, including a 2500 mile cross country trip, and is still in excellent working order (see startup video). I'm sad to see it go but I'm moving on to a new project and need the money.









The engine made 260hp and 200ft-lbs (roller dyno) on 93 octane. Since then I've made a few modifications including adding an RRC (JDM intake) and converting it to run on E85 so the engine should make a bit more power now.



The sale includes:
• 1 x K20z3/k24a4 "Frankenstein" engine, used and in working order
• 1 x E85 Tune (flashpro calibration)
• 1 x 93 Octane Tune (flashpro calibration)
*Custom ASP k24 headers & Skunk2 3" catback exhaust sold separately
*Hybrid Racing cold air intake for 2007 Civic Si sold separately

The price is: 4000$ shipped, PayPal only

Build List:
I've invested 6500$ in parts, 2000$ in tuning/machining services, and months of time to build this complete engine. A comparable "new" built long block (not complete) is around 8000$ from 4 Piston Racing.

k24a4 bottom end
k20z3 cylinder head
Wiesco 12.5:1 high compression pistons (87.5mm bore)
Eagle H-beam connecting rods
ACL race bearings
Exedy stage 2 clutch & flywheel
RSX oil pump

SK2 high compression valves
Kelford Cams behive valve springs
Kelford Cams 179-B cams (intake V-tec ONLY 40* VTC SAFE!!, rev limiter good to 8500rpm)

RRC intake manifold
410cc RDX injectors
J35 Throttle body
Hybrid racing cold air intake

Documentation:
Start up video: https://photos.app.goo.gl/Wepx0iAp3kWHRvzE3

More build photos and documents: https://drive.google.com/drive/folders/1S7jspwSK4gwDBK0H8rfhqgT0vA_ph8FM?usp=sharing

Questions/Comments?
Please respond to this thread or DM me and I'll get back to you ASAP
 

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Discussion Starter #6
Sorry to hear that! The only real difference between a K24a2 and K24a4 is the addition of oil squirters. All other improvements that make the k24a2 better than the k24a4 like the CAMs, larger valves, connecting rods, and pistons are negated because I've switched to a k20z3 cylinder head and better aftermarket components.

Let me know if you change your mind.
 

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I'd be all over this if it was an K24A2....FML
why. whats the difference now that is has forged internals and more CR?
crank is minimal difference.
no need for oil squirters since forged.

if I had the $ id buy it quick. I'm actualy slowing building the same thing
 
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