Is this cam too much for a marine 502?
#1
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Is this cam too much for a marine 502?
I have a cam out of my Shafiroff 540 sitting here and I'm getting ready to build a gen V 502 for my Velocity. I just want to get some opinions on the cam. Here are the specs. It's a Comp "HER" dual pattern grind 255/262 651/651 on 114 lsa.
Would it be better suited for a 540, or will it work in my 502? The motor will be stock bottom end and AFR 315 heads. I'm leaning toward the Crane 168741 grind, but if this one will work, why not use it.
Thanks,
Frank
Would it be better suited for a 540, or will it work in my 502? The motor will be stock bottom end and AFR 315 heads. I'm leaning toward the Crane 168741 grind, but if this one will work, why not use it.
Thanks,
Frank
#3
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Re: Is this cam too much for a marine 502?
651 Is Big . Thats Very Close To What I Run And Made For Higher Rpm Range, I Was Told Its Too Big For The Boating I Do But Thats What Came In The Motor. The 741 Would Be Much Better For Running 5 - 6000 Rpm. Excellent Head Choice . Buy A Marine Cam, You Will Not Regret It. The Engine Builders I Know All Use Crower Cams And Lifters.
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Re: Is this cam too much for a marine 502?
MINES A ISKY 617 245 INT EX IS 622 254 114 RUN DRY EXH On the dyno it dropped off at 6100 but makes 670hp I SPIN IT TO 5800 MIGHT REPROP AND RUN 5600, MAKES OVER 600 AT 5050RPM ITS A 510 TQ IS 637 4800
#7
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Re: Is this cam too much for a marine 502?
Originally Posted by ls1nova
I just want to get some opinions on the cam. Here are the specs. It's a Comp "HER" dual pattern grind 255/262 651/651 on 114 lsa. Would it be better suited for a 540, or will it work in my 502? The motor will be stock bottom end and AFR 315 heads. Thanks, Frank
You might want to try contacting "RMbuilder"/Bob Madara of Marine Kinetics. He has helped many guys get dialed in here on OSO with proper cam selections.
Hope all goes well with your mods.
Mark