What is my compression

455 with 4.350 bore, stock stroke, Ross flat tops #72792, Eagle H-beam rods 6.635", pistons are .027" above deck, using .060" TA copper head gaskets, TA Stage 2 heads with 64cc chambers.

 

Just a shade over 14-1

...plenty....


JW

 

Cool

Thanks for the Quick reply it wont be long and it will be ready to head NORTH

:beer

 

As they say up dere in Minnesota:

"Uff-Da!"

- Freed

 

My calculations says it's 12.99:1 using 7cc for valve reliefs (I'm not familiar with that piston).

 

Rob,

Yes, if he has valve relief's in the piston, then you are correct. He did not spec out valve relief CC's or indicate that he does or does not have them, so I did not figure them in. With 7 cc of valve relief, that would cut about a point off of it.

JW

 

Sorry, They do have valve reliefs