Judges

[Steve_Hoog]

Jeff

455 in any 70 car was basically the same, the cam was 067 in M40 and 068 MT.

So why the less HP than the 69 428 HO that used the same cams?

The head CC’s had to be more than 400 to present a streetable compression ratio and we know the heads were of less quality than say a 48. So what if they had put a 48 or even RAIV head, guess boost the HP 30 to 50 points for the added compression and flow. Then add the biggest cam, RAIV and you would get an unbelievable motor. Guessing 425 to 450 HP?

As much static as Pontiac got from the Chevrolet division about trying knocking them off the top, you think this dream motor would have helped? And don’t forget, the RAV engine was ever so close to a reality.

I must also correct myself, I believe the 63 SD 421 rated 410 HP making it top chief.