My KA-T build 91 & E85 Daily driver S14 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

dbeiler · 12-20-2015, 07:09 PM

Did you use engine oil or assembly lube on the bearings during reassembly?
Did you apply engine oil to the piston rings or cylinder walls? It looks bone dry to me. I don't see a single speck of lubricant anywhere.

Do you still intend to use the factory thickness headgasket? .020" is an awful lot of material removed from your deck surfaces. Using a stock thickness headgasket with raise your compression ration up roughly .5 to 1 putting you back to the factory 9.5 to 1. Not a big deal but it defeats the purpose of using lower compression pistons.

It looks like the pistons will come awful close to smacking the quench areas on the head. Doesn't hurt to measure piston height. At TDC, are they sticking above the block deck surface? A thicker headgasket will remedy all those issues.

12-20-2015, 07:09 PM	#10
dbeiler Zilvia Junkie Join Date: Jun 2012 Location: Lancaster county, PA Age: 34 Posts: 465 Trader Rating: (4) Feedback Score: 4 reviews	Did you use engine oil or assembly lube on the bearings during reassembly? Did you apply engine oil to the piston rings or cylinder walls? It looks bone dry to me. I don't see a single speck of lubricant anywhere. Do you still intend to use the factory thickness headgasket? .020" is an awful lot of material removed from your deck surfaces. Using a stock thickness headgasket with raise your compression ration up roughly .5 to 1 putting you back to the factory 9.5 to 1. Not a big deal but it defeats the purpose of using lower compression pistons. It looks like the pistons will come awful close to smacking the quench areas on the head. Doesn't hurt to measure piston height. At TDC, are they sticking above the block deck surface? A thicker headgasket will remedy all those issues.