how much compression

[Bolt on 5.0]

How much compression on an stock lower end 5.0, stock style head gaskets, and edelbrock performer heads 60 cc chambers. Any ideas?

 

[NKau]

I'd guess close to 9:1 or slightly less.

 

[modusmortis]

need to know headgasket compressed thickness, and the position of the piston in relation to the deck at TDC. (there are production differences from the factory that change how far this piston sits in the hole)

 

[Bolt on 5.0]

well from a stock stand point, I am just looking for an estimate of how much compression is gained by adding the edelbrock heads. I dont even know the e7 chamber cc's. Anyone know.

 

[Bolt on 5.0]

no one? All I want to know is how much did I raise the compression from changing from the stock 61.5 cc to 60 cc heads?

 

[modusmortis]

the stock combustion chambers range from 60.3-63.6ccs each. Assuming that your pistons sit flush with the deck and the head gaskets that you used have a compressed thickness of .047" (stock). You have a calculated CR of 9.22:1

 

[rickd93_lx]

+1

 

[Bolt on 5.0]

thanks modusmortus, thats the answer I am looking for. just a estimate. did not know there were variances in stock cc's. I am not sure of stock specs is there a site you could recomend. I found a calculator but do not know stock rod length, deck height and so forth.

 

[modusmortis]

there's not a site i know of, but I've been getting most these specs and the calculator from a book : "The Official Ford Mustang 5.0 Technical Reference & Performance Handbook" by Al Kirschenbaum. I've found it at some local book stores and I'm sure its available online.

 

[modusmortis]

there's not a site i know of, but I've been getting most these specs and the calculator from a book : "The Official Ford Mustang 5.0 Technical Reference & Performance Handbook" by Al Kirschenbaum. I've found it at some local book stores and I'm sure its available online.