With aluminum heads you will be fine even at 110 to 1 because the aluminum dissipates heat much faster. In this months editorial smitty tells us about the new edelbrock e street heads.
E Street Big Block Chevyhead Cylinder Head Oval Complete Single
Edelbrock e street heads review. The edelbrock e street cylinder heads offer american made quality and affordable performance. I have been looking at the 75cc version e street heads 5090. E street cylinder heads feature as cast ports and are designed for entry level street performance applications operating in the idle to 5500 rpm range. I think the e street heads are basically regular performer heads but with a cheaper valvetrain. Bottom line a sherman tank for the streets. However even at a total headintakevalvetrain package price of perhaps 200 more than the vortec iron heads the edelbrock e street heads seem to be the better.
What we did installed a fresh set of 23 degree edelbrock e 210 cylinder heads rpm air gap manifold and a complete moroso oiling system. Thats fine if you dont plan to upgrade later on but it sounds like you may want to go bigger later on. The 906 heads on our 383 have a little bit of match porting and bowl work done but the e street heads provide better flow and an improved combustion chamber equaling enhanced performance right. Smitty smith a longtime fixture at edelbrock and currently the technical sales coordinator has worked years as edelbrocks media technical support and consumer application information. I have iron 915 heads and im at 106 to 1 and use 93 octane and have used 87 accidentally without any detonation. They weigh less and make more top.
First off you can get away with much more compression.
Gallery of Edelbrock E Street Heads Review
