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Thread: WTB: Pistons and maybe rods for bigport 4age, 40thou oversize, high comp prefered

  1. #1
    Junior Member
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    Taylor
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    Default WTB: Pistons and maybe rods for bigport 4age, 40thou oversize, high comp prefered

    Hey

    Doing the old "gonna build a sick 4ag" but have not much mon so wanting to see if anyone can help out with maybe a secondhand forged set or ones they never used, thanks!

    P.S to suit 16v bigport head and block, bored 40thou over
    Want to run 10.5:1-12:1 compression, and gotta come with their wrist pin. will also consider conrods aswell. Looking to spend 200-800 located Gold Coast qld

  2. #2
    Veteran Jimmee1990's Avatar
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    By bigport I'm assuming you have the 40mm conrod journals/18mm piston pin combo? If so only Supertech make forged pistons to suit off the shelf that are "cheap". If you haven't got much money you won't be able to properly use that much compression with the right cams and valvetrain anyway, just build a smallport 10.2:1 bottom end with a skim off the block and head. Will be much cheaper.

  3. #3
    Junior Member
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    Hey yeah using the original 40mm rod journal crank, sweet thanks ill check them out! but yeah high comp and longer cam durations and the right headwork/tuning all go hand in hand, theres no such thing as a cheap build, but if i can save money buying secondhand id rather do that and help somone make room in a shed.

  4. #4
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    i have an ex Bob Holden Race team short motor. It was a spare for race car. still wrapped up after rebuild. I know it has Mahle forged pistons, new rings,new bearings. Almost certainly smaller 40mm crank but i'd have to open it up and check. If you are keen I'll be asking $1500 which is above your budget.

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