Headgasket 1mm over bore - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

YoungGun · 11-10-2009, 05:59 PM

Hey bros I got a quick question for yall.

I picked up a 1.1mm thick apexi headgasket 86mm stock bore, but when I picked it up the guy that was helping me said that apexi actually makes the gaskets 1mm over the bore size which would essentially make it 87mm.

This is not my question, long story short i'm going to trade in this gasket for a thicker one because the machine shop had to take off a lot from the block.

Would it be okay to buy a 87mm gasket from cosworth? I am using stock pistons and stock bore, if anyone has any insight please let me know thanks!

11-10-2009, 05:59 PM	#1
YoungGun Post Whore! Join Date: Nov 2007 Location: 818-951 SoCal Posts: 3,961 Trader Rating: (23) Feedback Score: 23 reviews	Headgasket 1mm over bore Hey bros I got a quick question for yall. I picked up a 1.1mm thick apexi headgasket 86mm stock bore, but when I picked it up the guy that was helping me said that apexi actually makes the gaskets 1mm over the bore size which would essentially make it 87mm. This is not my question, long story short i'm going to trade in this gasket for a thicker one because the machine shop had to take off a lot from the block. Would it be okay to buy a 87mm gasket from cosworth? I am using stock pistons and stock bore, if anyone has any insight please let me know thanks!