Well I now have my stock B16 block in my CRX, with my fully built GSR head sitting on top. When I put the head on, I just used one headgasket thinking that we could just tune the car with less timing to make up for the added compression of the GSR head (10.95:1). However, I'm thinking that it might be much safer if I double it up (gets me down to 10:1), especially because I'm after 300whp on our crap 91. From the other thread that I created (stock block thread), it seems like those who have made a lot of power on the stock block double up the gasket. Although Ben Strader said that this practice doesn't do much if anything (can't remember exactly what he said), and my tuner also is apposed to it.

Thanks for any ideas.
Bryson

 

I would look into getting one of the thicker Cometic gaskets before doubling up on gaskets... sounds like disaster just waiting to happen

11:1 CR is awful high for a turbocharged engine, and leaves you about 0 room for error.

 

I'm running an InlinePro 2 mm headgasket on my LS/VTEC w/ ARP headstuds, but on my brother's turbo GS-R EK hatch we ran double OEM Honda GS-R headgaskets with AEBS studs (We did this after the original headgasket lifted while on the dyno @ 10psi). We have had no problems with it after over a year of boosting. I used copper spray on mine, can't remember if we used it on his though.

Here's the car in action: (right click save as)

http://www.elitehost.net/brian...k.wmv

Good luck

 

You hear nothing but good things about doubling head gaskets for two reasons:

1) It works most of the time.
2) When it goes bad, the car owner is tickled it lasted as long as it did.

Zero expectations = teh win.

You know, you could just open up the combustion chamber on the GSR head a hair. Never touched one, understand they have diff combustion chamber shape, but for B16, D16, LS I've smoothed out the machined in pockets for where valveseats are installed and gained a cc or two.

There's also something to be said for boosting what you have. 300 whp on 11:1 CR has been done before.