Recommended Pistons for 308 rebuild

50C8DAN
50C8DAN Senior Contributor
in HUDSON
What is the current best type of pistons for a 308 rebuild.  I know that many have moved away from the original 4 ring pinned design, but what is the situation with 3 ring and piston scuff in the cylinder walls and are hypereutectics available?

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  • Browniepetersen
    Browniepetersen Senior Contributor

    I have several builds under my belt now.  I have always had the idea if you have the engine out of the car...do it right.  I have done them several ways but for me it means indepth close tolerance machining, aluminum pistons (it is simpler to machine and balance) then slotted racing rings.  Randy Maas has a cam designed for what you want for performance.  "Go all the way or go home..."


  • 50C8DAN
    50C8DAN Senior Contributor
    The engine is sitting in my garage with Kroil in each cylinder.  Finally got all but 2 head bolts out.  Only broke of one bolt off, but the machine shop can get this one.  I need to get the blasted Hydromatic undone and then move on.

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