Originally Posted by WhiteCobra94
Yea they are aimed towards entry level engines but the only down fall is you'll need a new box with rev limiter cause those heads recommend you NOT to go past 5,500RPMs , can cause serious valve float
A set of valve springs might fix that issue.
The ProComp heads I believe to be ok.
Those I linked to are a bit better flowing than the E heads, so I'd bet they don't have that low of an RPM limit.
My cousin ran some on his Chevy engines and they held up well and did a good job performance wise.