[H2nr]

I just sold my 85mm 13.6/1cr GSR engine and I have ordered a K20a2 swap. I am going to sleeve the block and would like to go with a bigger bore piston 88-90mm. I would also like to do 14-15/1cr using flat top pistons and reworked combustion chambers. Or would I be better off sleeving a k24? Any help would be great!! thanks

 

[TeamPacman]

90 mm is fine. NO MORE

 

[fearless_dsm]

I have heard a maximum of 91mm...if it is possible,you wouldnt want it as a daily driver,as the headgasket surface between the cylinder would be very thin and wouldnt be able to take the abuse...and you definately wouldnt want 91mm for a forced induction engine.....

 

[H2nr]

OK, now what about the head gasket? Who makes one that big.

 

[allmotormadness]

OK, now what about the head gasket? Who makes one that big.

Golden Eagle MFG.