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Thread: whats the difference between red and blue 253

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  1. #1
    It came out of 1974 hq panel van sep build engine casting date matches build date 14j4 I didnt record engine no but its a qr block.ill post up engine no after work cheers.

  2. #2
    Sandman Guru
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    That is right. Once they are rebuilt they can be anything. Only things that can't really change is the late red and blue engines have longer valley head bolt bosses, and the early reds (pre HJ production) have a neoprene rear main seal.

  3. #3
    My bad, its a red block ive just scraped blue paint off and found the original red, the engine no qr588710 casting dates 18j4 , does that eng.no corospond with cast date.cheers andrew.

  4. #4
    It's a rockin' Sandaro's Avatar
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    I don't have comprehensive numbers records that others have, but would seem to be fairly right.

  5. #5
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    Pretty close, probably an early HJ engine but might just sneak into a very late HQ.

  6. #6
    It's a rockin' Big Rob's Avatar
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    Yeah, QR is a HQ 253 high compression.
    No way any were painted blue from the factory, it's been recoed and the owner wanted it blue for some reason. (Is the van blue?) It was common back in the Show Van era to paint the motor to match the exterior colour.
    Vans.... This is the 2nd time round the block, 40 years later! talk about turning back the clock!

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