whats reasonable compression for 383

[tooslow]

I have a 383 shortblock that looks from apearances to be in good shape
suposed to have 33K but who knows?
8.5 to 1 w 452 heads
What is the min compression I should have per cylinder?
What is the Max variance per cylinder?

Thanks

 

[moper]

Depends on the cam and condition. Generally I'd be looking for at least 130psi and the more important thing is a varience of no more than 10%.

 

[Babyblue66]

I've seen non magnum 383's with a calculated compression after cc ing around 7.8 to 8 to one. You should cc first if its apart.