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

Look at www.raylarengine.com


They have special forged pistons for supercharged 496 and heads

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

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.

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

454 stroked to 496,is 600hp more realistic.

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.