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Thread: Getting close to a 454

  1. #1
    Taylorman
    Im getting closer to building my BBC. I got my block in today. Its a Gen VI 454 block. So far i have block, intake, exhaust, roller lifters, timing cover, lifter retainers and the dogbones that hold the lifters in place. Are the stock hyd roller lifters ok for 500-600 hp?

  2. #2
    jstwkd
    Depends on the lift......

  3. #3
    Taylorman
    Does a Gen VI use the same motor mounts as a Gen IV. I may get a rail kit.

  4. #4
    BlownNitro540
    Motor plates are the same for MK IV and a Gen VI. I have a some parts for sale for a Gen VI motor as follows:
    1. Used motor plates
    2. Used Callies Magnum Plus 4340 forged crankshaft with a 4.375 stroke one piece rear seal
    3. Stef's 13 quart aluminum oil pan for a Gen VI with oil pump and pickup
    If interested, PM me.

  5. #5
    jdf
    taylorman if you can go with a rail kit if you need to side the motor up are back it's alot easy

  6. #6
    fkeys
    Watch out for the peanut-port heads that came on trucks. Smallest port I've ever seem - smaller than "oval" ports - almost round. They seem to be real common. They say these heads are good for low rpm torque, but suffer when it comes to high rpm hp.

  7. #7
    Duane HTP
    Taylor man, NO on the lifters. If you check your GM HP catalog, you'll see that they use a different part number lifter for the performance engines. I learned this the hard way.

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