Metal Headgasket

[andylaurel]

Hey all you smart skyliners out there.

can anyone tell me, if i used a 1.85 mm metal headgasket in a RB25DE (originally 10:1 CR) what my new CR would be?

I am unsure of the calculations and measurements eg deck height of stock pistons etc

[Adriano]

How thick is the original head gasket?

[Stronzo]

tomei states rb25de + 1.8mm 87mm headgasket will have 8.9:1 CR

Link: http://www.tomei-p.co.jp/_2003web-catalogu...B25_gasket.html

From tomei info i think stock gasket is ~ 1.1mm.

p.s. I`ve measured used stock rb25 gasket taken out of an engine and got 1.3mm. Funny. Maybe my measurement tool is not precise.

[andylaurel]

thanks very much for that!