[azbirds]

Originally Posted by Dick Boneske

We still haven't decided which heads to put on our 462 (.030" over 455).

Several Pontiac purists have very bad things to say about the original Edlebrock design--claiming you can get more HP with factory cast iron heads.

Has anyone gotten these newest heads yet that could share their experience?

I had some early E heads, and the only complaint was the oil drain back. The holes for draining oil are on the same plain as the rocker studs, and that caused them to hold a ton of oil where you don't want it. I sold them because of that! Going back to idle after long freeway runs would result in large plumes of smoke, and not from valve cover leaks, and they were new. KRE's for me. If they fixed the oil problem, and I don't mean having to put some ridiculous tube running out of the back of the head, they would be a good head.

[Tom Vaught]

Originally Posted by azbirds

I had some early E heads, and the only complaint was the oil drain back. The holes for draining oil are on the same plain as the rocker studs, and that caused them to hold a ton of oil where you don't want it. I sold them because of that! Going back to idle after long freeway runs would result in large plumes of smoke, and not from valve cover leaks, and they were new. KRE's for me. If they fixed the oil problem, and I don't mean having to put some ridiculous tube running out of the back of the head, they would be a good head.

Real experience, I know a very basic 300 cfm E-Head 455 engine will make over 850 HP at only 13 psi of boost on Steve Morris Dyno and could easily have made 1000 hp. Steve routinely has 3000 HP engines on that dyno.

Real experience says a basic Butler ported standard port width head can make 620 hp all day long without any expert porter skill.

Tom V.

[Garry Sr]

At the risk of sounding fickle I'm sending the d-ports back and going with the round. These heads are just to expensive to be screwing around and the price difference isn't that much.