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317 heads

This is a discussion on 317 heads within the Internal Engine forums, part of the LSx Technical Help Section category; are the 317 heads found on an iron block 6.0 any good? i can get the whole engine for cheap ...

  1. #1
    Junior Member Harry98SS's Avatar
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    Torrid Red
    2005 GTO

    317 heads

    are the 317 heads found on an iron block 6.0 any good? i can get the whole engine for cheap is it worth it. would it be a good platform for a stroker build? does anyone know the stats on the heads?

  2. #2
    Veteran Hi-Po's Avatar
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    Black
    1999 TA WS.6

    Good platform for a stroker. Is it LQ4 or LQ9 block. Doesnt really matter if you are planning on immediately to rip the internals out and put a 4in stroker in there.

    If not, LQ4 has dished pistons with a lower compression ratio around 9.4 or 5

    LQ9 has flat top pistons and has a compression ratio of around 10.4 I believe. If you are turning it to a stroker, then you are probably planning on getting new heads anyway right?

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