another head, cam suggestion, post
01-03-2006, 12:28 PM
#22
Re: another head, cam suggestion, post
Rookie, the Stainless Marine exhausts are fine....and about the same with the GILS as far as performance goes. And like I said, that's money you DON'T have to spend! By the way, I would have to say that adding an additional 125hp per engine should push your 30' Scarab faster---how much faster remains to be seen, but it's always harder, and takes more HP to go faster in a boat anyway. Of course it's always worth hearing experiences from others, but you're ultimately the one who has to decide it's worth doing.
01-04-2006, 12:05 AM
#23
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Re: another head, cam suggestion, post
Originally Posted by Rookie
I have Weiand stealth dual plane intakes and was thinking of upgrading. I have no issues with low and midrange twins in a relative light boat. but at 5000 rpms it hits a wall, it takes forever to get that extra 200rpm's.
01-04-2006, 08:20 AM
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Re: another head, cam suggestion, post
Originally Posted by Rookie
Thanks Chris, that is what I wanted to hear about the heads. Do you believe that stroking these engines, with a cam change, and the existing large rectangle bowl ported heads chevy heads will be over the 500-525hp range? you still haven't brought up a cam selection that you would feel would work for these mills, the 731 does sound like a good choice. would I have to worry about piston clearance? I know my heads are 118cc, but they have been milled down to 114.5cc. the compression is high 175lbs on one engine, and 185-190 on the other..
Intake on your mill I would go an air gap.
02-05-2007, 12:16 AM
#25
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Re: another head, cam suggestion, post
I am doing the same setup on my boat right now. With the same heads. But I am putting reflashed 502 mpi injection setups and stellings headers. did every decide that the 731 cam was the ticket?
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