1967 Chevelle 300/427

[WILMASBOYL78]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: mprice</div><div class="ubbcode-body">I used early 70s open chamber square port head ending in casting number 026. </div></div>

That was the head used on the 71 454/425hp Chevelle....sounds like a great build. Any dyno numbers??

-wilma

[427.060]

Originally Posted by WILMASBOYL78

That was the head used on the 71 454/425hp Chevelle....sounds like a great build. Any dyno numbers??

-wilma

I think Chevrolet intended to use the head on this engine but they never made a 454/425 Chevelle.
James

[WILMASBOYL78]

It is my understanding a limited number of engines were produced and urban legend say a few pre-production cars were actually made [img]<<GRAEMLIN_URL>>/dunno.gif[/img]

Colvin's book lists the engine for 1971 and I've seen other literature showing the engine as an option that was 'cancelled' very early before any cars were built.

Here are a couple of links that discuss this very topic...

http://www.chevelles.com/forums/45-c...454-425-a.html

https://www.yenko.net/ubbthreads/ubbt...opics/404475/1

Those #026 heads have to be a pretty rare item...

-wilma