Quote:
Originally Posted by Stan Weiss
You are just dreaming. That would still not be enough head to produce the HP to hang with the Chevy's. Now a 428 (I like the shorter stroke) with good forged rods and pistons and a street / production version of the RAV head would be a different story.. 
Stan |
No, not dreaming anything Stan. There was actually 2 sets of 90cc SD455 heads made. Dan Whitmore had a PMD engineer bring a set by his shop back in the day. Casting # 96. They even had the pushrod tubes like the 73-74 SD 455 heads. Dan held the heads in his hands, its all true.
The engine was going to be a 455, 10-1, forged pistons and rods, the SD 455 block, N crank, RAIV aluminum intake with the SD 455 Q jet, RAIV cam and valve train, Ram Air ex.
A street monster. It would have made well over 450HP and more than a equal to the LS6 454 on the street.
Not "dreaming" at all Stan. This thing almost happened.
And there were 428s with forged cranks and 2x4 tunnel ram intakes for RAV heads in the works too. They made some intakes and some Kellogg cranks also but 3" main for the RAV block.
Chevy killed a LOT of PMDs plans that would have put them at the top on the street.
A person who knew what they were doing could keep up with a LS6 with a RAIV in stock form. This 10-1 455SD would have pummeled the LS6.