blownbaja24

I'm building a 496,using a small b&m street blower,single carb,steeling headers. what pistons and heads should i use. i have a set of open camber heads laying around. i would like 700 horses. i'm on a budget wifes going back to school. thanks for your help

Goofy1103

Look at www.raylarengine.com


They have special forged pistons for supercharged 496 and heads

Biggus

iTrader: (1)

To get anywhere near 700 hp you will have to go with a bigger blower (671/420 or so) the small B&M makes a better heat pump than a supercharger when you try to spin it fast enough to produce the numbers you are looking for.

A set of forged flat tops, mildly ported rectange port GM heads and a 671 set up for 6-7 lbs on a Superchiller and a decent hyd. roller cam will give you what you need.

...just my .02

Kurt

Crazyhorse

My 509 engines make 696 chp@6000 on the dyno. 8.6 c/r, rectangle-port heads, mild hydraulic flat-tappet cam, B&M250 blowers with single Dominators at 7 lbs. boost.

Zanie

Just to clarify; Are you talking about the new style 496 or a 454 stroked out to a 496?

blownbaja24

454 stroked to 496,is 600hp more realistic.

greencard

iTrader: (2)

The 174 blower you have is almost too small for your cu in engine. The 700 hp goal can be easily obtained if you go to a 671 or comparable supercharger. The 174 can only make 4-5 psi on a 500cubic in engine and that is turned up (more heat). Best of luck with your project.