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Thread: SBC 434 pistons for AFR 235 heads?

  1. #1

    SBC 434 pistons for AFR 235 heads?

    I'm putting together a 434 SBC 6in. Scat Stroker H-Beam Rods. Cola 4in crank.
    400 mians. 2.100 rod journals. AFR 235's 70cc chamber. Demon RS 1025.
    2in Custom anit reversion Spacer. Edelbrock Super Victor Fully ported by DR J performance. Custom 860 base Oregon Solid roller 4/7 swap. 316/322 670/640 with 1.5's 276/285@50 106ICL 110 lobe sep.
    Looking for a flat top or a dish piston off the shelf.
    Any suggestions?

  2. #2
    Senior Member EXPERT BUILDER
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    forged je pistons

  3. #3
    Senior Member MASTER BUILDER
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    AFR 227 235 heads take a custom piston, we can have any of the shelf pistons converted to accept the valve spacing. We do JE or Diamond customs for customers on a daily basis.

    Give us a call and we can set you up
    Competition Engines & Hardcore Engine Parts
    www.cnc-motorsports.com
    info@cnc-motorsports.com

  4. #4
    Senior Member DYNO OPERATOR
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    From the looks of you combination and depending on deck height, head gasket bore and thickness, and the valve relief depth your compression ratio is going to be somewhere between 11 and 11.5 to 1 with a flat top piston and even less with a dish piston. It looks like you have alot of cam shaft for your set up. JMO.

    TS1955

  5. #5
    Senior Member EXPERT BUILDER
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    i was not aware of that cnc i guess you learn something new every day

  6. #6
    Senior Member RACING JUNKIE
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    Yep as CNC says, also requires offset lifters and rockers, i think.

    Zip.

  7. #7
    What part number JE pistons?

    TO CNC Motorsports how much for the pistons?

    Thanks Fellas.

  8. #8
    Senior Member MASTER BUILDER
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    Quote Originally Posted by bubbaf100
    What part number JE pistons?

    TO CNC Motorsports how much for the pistons?

    Thanks Fellas.
    Give Jason or Chris a call 1-800-341-1528 they can quote you anything you need for your build.
    Competition Engines & Hardcore Engine Parts
    www.cnc-motorsports.com
    info@cnc-motorsports.com

  9. #9

    SRP or JE have no problems

    For future referance the SRP flat top and dish had zero problems with Piston to vlave clearance. The JE dish no problems eithier.
    To anyone wanting to know in the future. All off the shelf right out of JE Catalog.

  10. #10
    Senior Member RACING JUNKIE
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    Call Wiseco ... they are the best in the business IMO
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