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  1. #1
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    Default Buying used 308 what to look for.

    Hi all, when buying an old Holden V8 engine suitable for rebuild, what should I be looking for. Considering I can take the heads off and remove the sump.
    I realise look for bore wear, bore size, crank journal score marks, physical damage etc.
    Thanks.

  2. #2
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    Cylinder bore size, bad rust in bores, water gallery excessive corrosion, not dodgy engine number.

    Make sure it is the right bellhousing pattern for you.

    Don’t be too concerned with the crank, they are easily replaced.

  3. #3
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    Quote Originally Posted by HK1837 View Post
    Cylinder bore size, bad rust in bores, water gallery excessive corrosion, not dodgy engine number.

    Make sure it is the right bellhousing pattern for you.

    Don’t be too concerned with the crank, they are easily replaced.
    Cheers HK1837, apparently its Aussie and been drilled for turbo pattern so will check its been doweled and plugged correctly, and +30 with no ridge so hopefully it MAY just need a hone??. Not sure what price a short motor should be going for but will check it out.

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    Unless engine number is prefixed HZ maybe $800

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    Quote Originally Posted by HK1837 View Post
    Unless engine number is prefixed HZ maybe $800
    More chance of winning lotto I think than getting a HZ prefix 308.
    cheers

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    It is funny what turns up from time to time. I've found performance GMH engine blocks is the weirdest places. Like a JP block in a Toyota Dyna, an NP in a HX wagon, HZ in a HJ tonner, 327 from a GTS327 in a WB tonner, HT GTS350M block in a boat.

    If what you have found was originally a red trimatic block it will most likely be one of the more common numbers, like 308H (HT-HG), 11QT (HQ Statesman), QT (HQ Holden or HJ-HZ Holden manual), HT (LH-LX Torana) or VT (VB manual).

  7. #7
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    Buy a later model 5.0/304 engine, its already turbo pattern and a whole engine suit rebuild can be had for $500. More than what some people want for a worn out 308 block.

  8. #8
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    Quote Originally Posted by paulzig View Post
    Buy a later model 5.0/304 engine, its already turbo pattern and a whole engine suit rebuild can be had for $500. More than what some people want for a worn out 308 block.
    yeah its the numbers crew.. but no one gives a shit about the later ones... yet.

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    Problem is in NSW if you want to make it totally legal you have to fit EFI with VN-VS block, cats etc and factory memcal plus Engineers report. There are sneaky ways around this but still a potential issue.

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    And it will be going in my SS hatch that I want to keep reasonably stock looking including heads and rocker covers.

  11. #11
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    You can still use red heads on VN-VS block.

  12. #12
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    Quote Originally Posted by HK1837 View Post
    You can still use red heads on VN-VS block.
    Cheers

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