I'm in the procces of having my motor built.. The piston I chose was a srp 9.5:1 cr. My question is now that i bored the cylinder walls which head gasket should be used. I wanted to use a cometic hg with arp's but cometic does not make a 81.25, they only make 81 and 81.5. should i just use stock bore size.. Thanks

 

You can actually just use an OEM gasket(recommended) with a standard .25mm overbore. In fact, I'm running a stock bore gasket with a 81.5mm bore with no problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inspyral &raquo;</TD></TR><TR><TD CLASS="quote">You can actually just use an OEM gasket(recommended) with a standard .25mm overbore. In fact, I'm running a stock bore gasket with a 81.5mm bore with no problems.</TD></TR></TABLE>

correct, you can always go + or - .5 the stock HG is actually 81.25 last time i measured one...

 

Thanks guys i will be using a 81mm cometic then. thanks