Quote:
Originally Posted by DJ's left nut
425-450 is what I've been able to find again based on just putting the build into various sources. But admittedly I've never Dyno'd it. I've had a couple different mechanics give me their thoughts on it as well and they were thinking in that same range.
The motor was rebuilt with the Eagle Competition forged crank/piston setup so even as far as 383s go, it's a pretty damn stout one. I've seen some folks with that setup claim they have it at 500HP but I don't buy it - I think there's some pretty heavy grade inflation going on there. I saw a guy years ago who put a dyno sheet up that said 480 from his Eagle 383 but there wasn't enough detail in there for me to know how he got there.
I can't really claim anything with any confidence.
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I had a really nice 383 in my Chevy II when I bought it. It came with a Dyno sheet that said it was 505. Steel crank, steel 5.7 rods hypueretic pistons Edelbrock heads and a decent cam with a single plane intake and a 750 Holley. Not many of them actually break the 500 number though.