Piston types & dimensions

Discussion in 'InsideTopAlcohol.com Tech Questions' started by Bikerphil, May 29, 2019.

  1. Bikerphil

    Bikerphil New Member

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    Hi, Does anyone have a piston from an hemi type v8 Alky or A/F motor they can take measurements off for me. I'm looking for piston height to the top edge (not crown), pin to top edge and pin to bottom skirt dimensions.
    I get that many will be different but i just need a ballpark number.

    Also who makes Pistons for A/Fuel cars and how do they compare with blown fuel pistons?
    Thanks
     
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  2. ROBERT TURNER

    ROBERT TURNER New Member

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    HI Phil
    I think I have a damaged 1 or 2 pistons in my trailer at santa pod these are J&E 4.375 for brad 5 fatheads you are welcome to have them to keep to check . I will check and let you know after the weekend all my good parts are in the USA we currently run Carrilo pistons 526ci( 4.375 square motor).
     
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  3. Bikerphil

    Bikerphil New Member

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    Hi Rob,
    Thanks for that, as it happens my motor design is for 4.375 pistons. So it would be very useful if i had one or 2 to measure & dissect.
    I'll be at the summer nats in 3 weeks if your there?
    The stroke i want is 3.07" so a fair bit shorter than they were designed for
     
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  4. superpro453

    superpro453 Member

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    Hi Phil
    We run 4.375 bore, too, and have a used set in the race truck which you could borrow (as we keep the old ones in case of a disaster) - can't measure them as the truck is at the Pod, but we're at the Summer Nats, too. Have some used rods, too, but they're 6.9" so too long for your application. And some spare valves you could measure...

    Martyn Jones
     

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  5. Bikerphil

    Bikerphil New Member

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    Hi Martyn, Thanks for that. It would be really useful to have some parts to take measurements from, I will come and find you in the pits at the summer nationals.
    Cheers
    Phil
     
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