Ford Mustang Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
28 Posts
Discussion Starter #1
how many h/p is a mex block #75ZY 6015 AA capable of handeling? Wanting to build 331 w/8.5 comp ratio all forged then add 10 lbs boost w/ Holley 174 s/c, will it hold up w/ girdle???
 

·
Registered
Joined
·
28 Posts
Discussion Starter #2
I was running 1990 .030 block 306 w/ 9 psi and nearly broke block in half...
 
1 - 2 of 2 Posts
Top