Combustion chamber volume of GN-1's

[postal]

I need to know what the cumbustion chamber volume of GN-1's are so I can recalculate what the compression ratio will be with these stage 2 heads.

TIA: Jason

 

[Quick Turbo V6]

Go here.

http://www.championracingheads.com/gn1/products_alumcylinder.html

It says they are 46cc.

HTH,
Scott

 

[EightSecV6]

I need to know what the cumbustion chamber volume of GN-1's are so I can recalculate what the compression ratio will be with these stage 2 heads.

TIA: Jason

dont forget about the valve reliefs being located differently.....

 

[Otto J]

Stage 2 heads require different pistons than stock style heads,I dont believe you can just bolt them on a nd go if the motor was built with GN1s

 

[postal]

They are going to cut new valve reliefs. The shop said it should be no problem. This pistons where 8.6 to 1 on 46 cc heads. According to my math it looks like I'll have to get a few cc's in the gasket or open the chambers a tad to get to around 9 to 9.2 to 1 range.

Jason