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86242ls

07-01-2011 09:19 AM

cam recommendations for 509 bbc

What would be a good cam to use for this motor. I had a bullet racing flat tappet cam with the specs of 239/249 @ 0.50 with a duration of 296/306 a lift of 558/580 on a 112 lsa and an rpm range of 2500-6500. I was told it made 525 hp with a dual plane manifold. Currently the motor has re freshened gm ls6 open chamber heads, gm bowtie block, hp 500 single plane manifold, roller rockers, holley 850cfm carb, with emi thunder exhaust. I can get a new cam with the same specs from bullet racing; but, was wondering if their is anything that would work better with my setup. I would like to remain with a flat tappet style cam.

86242ls

07-02-2011 08:51 AM

nobody?

ROTAX454

07-02-2011 10:06 AM

Cam recommendations from the marine professional. Bob Madera ("rmbuilder" on this site). PM him. You will not be disappointed.

mike tkach

07-02-2011 10:19 AM

your current cam will make good power,y change it?

86242ls

07-02-2011 11:06 AM

Quote:

Originally Posted by ROTAX454 (Post 3443625)

Cam recommendations from the marine professional. Bob Madera ("rmbuilder" on this site). PM him. You will not be disappointed.

thanks I will send him a pm

86242ls

07-02-2011 11:08 AM

Quote:

Originally Posted by mike tkach (Post 3443628)

your current cam will make good power,y change it?

It is worn out according to the machine shop doing the freshening, I can get a new replacement from bullet racing; but, just seeing if their is any better cams out now?

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