Originally Posted by carnut68
How much of a difference is there between the RPM head verses the E Street? Performance wise. The E Street is about 250 -300 lower in price.


Basically zero difference.
The only real difference between them now is some tiny about of blending and the valves.

The 84cc E Streets also have the spark plug holes straight instead of angled.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads