Hey engine guys! I have a pair of 496 dart pro1 alm head 9.5 to1 comp.carb.engines thinking about adding blowers. Would BM174 be big enough? about 5 psi boost . THANKS

No. The 174 is great on small block motors. They are marginal on a 454. And simply too small for a 496. Check the classifieds, there are some 250's for sale. And even better, ther are some 420's, which will produce 5psi with very little heat.


Darrell.

Like was said, 250's would be a much better choice. IMO, your compression ratio is too high as well, but a 4-5lb boost may be ok.