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Ported 4.8 Heads & Comp R Lifters

This is a discussion on Ported 4.8 Heads & Comp R Lifters within the Parts For Sale / Trade forums, part of the Sponsors Group Pricing and Parts Review category; I have a set of ported ls1 4.8 heads ported by GTP a few years ago flow 300cfm and .600 ...

  1. #1
    Fubarredz
    Guest

    Ported 4.8 Heads & Comp R Lifters

    I have a set of ported ls1 4.8 heads ported by GTP a few years ago flow 300cfm and .600 lift and cant exactly remember what on the exhaust heads are still on car want to go with a bigger head like a AFR or something, Heads have new dual valve spings with tit. retainers good for .650 lift and close to 7500rpm with out floating, Will take 800.00 for them firm shipped.

    I have a set of comp R lifters that have 1k miles on the will let them go for 125.00 shipped if i sale the heads heads gotta come off first

    Thanks
    Kerry

    ps. And i will also throw in a set of Trick flow 7.400 push rods with the heads

  2. #2
    1hpman
    Guest

    4.8 heads

    Quote Originally Posted by Fubarredz
    I have a set of ported ls1 4.8 heads ported by GTP a few years ago flow 300cfm and .600 lift and cant exactly remember what on the exhaust heads are still on car want to go with a bigger head like a AFR or something, Heads have new dual valve spings with tit. retainers good for .650 lift and close to 7500rpm with out floating, Will take 800.00 for them firm shipped.

    I have a set of comp R lifters that have 1k miles on the will let them go for 125.00 shipped if i sale the heads heads gotta come off first

    Thanks
    Kerry

    ps. And i will also throw in a set of Trick flow 7.400 push rods with the heads

    hello just wanted to know what size valves are installed and combustion chamber size.

  3. #3
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    Red
    1999 Pontiac Trans Am WS6

    I need those lifters are you willing to sell them alone or not? If so are they hydraulic roller lifters and are they connected or unconnected? Also do you know the part number such as 875-16 or 850-16?

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