Napoleon1991
Well-Known Member
I'm looking into the possibility of upgrading the stock 452 heads on my 440 to aluminum heads. I was looking at the edelbrock E street 5093 heads. The motor is pretty mild, has about 9.7 CR, TTI headers, performer intake and currently has a comp XE268h cam in it. Car has 3.23 gears and a 2500 stall convertor. Car runs great and pulls hard, but I was wondering if there would be a noticeable performance gain by changing heads.