Quote:
Originally Posted by steve25
I am not putting him down, nor am I a hater by any means, and I am sure as Hell not jealous, so stop your second guessing as to my nature or my intentions please!
He certainly was kind enough to post his dyno results with these heads used and by doing such was asking for a opinion, which I gave, and I fact I gave the SBC build as a reference for my opinion and the info from the Edelbrock ad, so I gave 2 examples, and not just opinion!
If you do not want opinions then don’t do posts asking for such!
The simple fact is that his 400 build would be making more power if he was running the KRE or Edelbrock D port heads on his 400!
Anyone care to comment as to why?
All this just goes to show how the combos we build need to be crafted more carefully and that’s because I know our Pontiac motors can equal the power of this SBC build I posted info about.
Here’s a great old example from the 1991 in terms of a 400 build with ported iron D port heads that certainly where not flowing what those out of the box Speedmaster heads are.
Anyone recall this 475 hp build that Pete McCarhy did ?
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I will take a stab. Probably the same reasons Dan W had better results from his ported D ports on 400s than as cast E heads back in the day. Customers bought then new E heads and put them on their 400s and made less power.
Ports were not properly sized for the cid. Hard to get enough squeeze on the 400 with 72 cc chambers.
Vic called Dan and asked what the Pontiac world needed in a aluminum head. He asked for the RPM head but in 3 different chamber sizes. One 65cc or less for 400s. He did not get his wish.