331 Dyno results

[302 LX Eric]

Originally posted by Dark_5.0
Thanks man, 9.85 to 1 isnt bad if that is correct.

I am still debating between a 331 and a 351. 331 would be cheaper though so that may be the deciding factor.

I am surprised that your HP peaked that soon.

I've been kicking around a long-term idea of building up a 408 or 427 stroker to drop in and keep it N/A. Something with like 10.5:1 compression so that I can still run pump gas and have a really killer street car, I dunno. Or another 331 w/R block, low compression and BIG a$$ turbo or ProCharger. We can all dream can't we?

I was surprised the HP peaked that soon too! However with the track heat intake and 1/2" spacer I've essentially created a longer intake path thus producing more low-end and sacrificing a little HP on the top end. With the peak at 5250, it still makes over 300 RWHP from 4600 - 6200 so I'll probably try shifting around 5800 or so and see what that nets. Plus, the TQ curve on this 331 is insane! I'm around 340ish+ RWTQ from 3800 to 5000. I love it.

One other thing is that I went a little overboard on my stroker package in so much as I used H-beam rods instead of I-beams (or even the lightened I-beams), standard Flat-tops instead of the Pro-Lite Piston and a 4340 forged crank. The block will split six ways to Sunday before that crank or rods even think about giving up the ghost. So, I'm probably a bit heavy on the rotating assembly as compared to what I could have done. This may partially explain the 5250 max HP and higher TQ numbers.

E