Marine Roller Cam ID Help Needed
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Marine Roller Cam ID Help Needed
I got the roller camshaft from a marine 305. I've measured the base circle and lobe height ... I get 1.5 rocker arm ratio lifts of about .426 / .450.
The numbers are FM L 1292 26. Is this cam a marine reverse rotation cam?
Thanks in advance,
dave w
The numbers are FM L 1292 26. Is this cam a marine reverse rotation cam?
Thanks in advance,
dave w
Supreme Member
Joined: Oct 2006
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Marine Roller Cam ID Help Needed
i would say that is NOT a reverse rotation cam due to the dist gear angle reverse rotation cams also turn the dist backwards think the easiest way to tell is that gear
On Probation
Joined: Oct 2008
Posts: 6,319
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: Marine Roller Cam ID Help Needed
so it seems you have the cam we refer to as the ramJet 350 cam as that's it's most famous application. If that's what you have, it's great torque down low, and okay to about 5100 rpm.
Joined: Jan 2005
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Marine Roller Cam ID Help Needed
That sounds like the "395" which is the Ramjet cam. Its 196/206 @ .050, .431/.451" lift, 109 LSA. It was known as the "Marine" cam and also came in two GMPP Crate engines. The HT383 and the Ramjet. In the Ramjet it comes with 1.6:1 roller rockers on it.
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