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Thread: Nailhead 401 engine swap in 1965 Buick Skylark

  1. #1
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    Nailhead 401 engine swap in 1965 Buick Skylark

    Looking for any information on engine placement, engine mounts and frame pad for a 1965 Buick Skylark. The car came with a 300cid

    IMG_0989.jpg

  2. #2

    Nailhead 401 engine swap in 1965 Buick Skylark

    You are looking for 65-66 Gran Sport Skylark parts. That was a Skylark with a Nailhead 400 (401) engine and Nailhead specific ST300 transmission. It might be easier to look for someone parting out one of these to get the mounts, exhaust manifolds, radiator, oil pan and other 65-66 Gran Sport specific parts.


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    Last edited by Dr. Frankenbuick; 02-05-2017 at 07:53 AM.
    Steve B.



    67 GS 525 Buick Stage IV
    66 GS Convertible
    65 GS HT
    63 Riv
    02 Subaru WRX Turbo
    03 Ford Cobra Convertible (Factory Supercharged)

  3. #3
    front springs are going to need to be upgraded, that Nailhead is going to be WAY heavier than the 300ci.

    hope you're also looking at disc brakes.
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