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Thread: Need cam advice and cam

  1. #1
    Jim W
    Hello,
    I have a Hallett v-drive flatty and the cam is wiped out.
    The motor is a 396 with TRW pistons with the part # 23479.
    I cant find any specs on these pistons but the heads are closed chamber, ovals, 98 CC. I have 185 lbs compression in the good cyls so I am pretty sure the compression is up there.
    Running a tunnel ram and 2 660 Holleys on premium pump gas.
    Anyone have an idea of a good affordable hydraulic cam??
    Or anything out there used with matched lifters?
    Just a lake use boat that I actually am looking to sell.
    Be good, Jim

  2. #2
    Daytona100
    Ran the numbers on my camquest program. It came out with Comp cams Xtreme marine 270H rpm range 1600 to 5800rpm. Cam and lifter kit part# CL11-240-4. Duration .050 226 intake 236 exhaust Lift 544 intake 547 exhaust. Peak HP 552@6000 Peak torque 516@ 5000. Hope this helps. :idea:

  3. #3
    Jim W
    Thanks Daytona!! I sent you a PM.
    I was thinking of the Comp 280 Magnum.
    Be good, Jim

  4. #4
    Daytona100
    280 moves the rpm range up to 2400 to 6400rpm. Do you run it to 6400?

  5. #5
    Jim W
    LOL nope.....back to the 270 cam
    Be good, Jim

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