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  1. #1

    Default Difference in heads

    I just finished pulling the heads on my 350 Vortec. I'm planning on replacing them. The heads have an 062 casting number on them. I've seen heads for sale with 906 castings. Is there any real difference between the 062 and 906 castings? Are they interchangable? Just a curious newbie. Thanks

  2. #2


    Here's an article on the vortec heads/906's:

    The 062s sound comparable to the 906's. There's some general discussion of differences on this thread:
    1986 Chevy G20 Tow Rig - 5.7 TBI conversion
    1978 Mustang II King Cobra Road Racer - Holley 650, MSD 6AL, 5 speed, 10 point Roll Cage, 9" posi, fuel cell, custom interior.

  3. #3


    After I posted I did some more research and found some heated arguments about the difference in the heads on other Chevy forums. I endend up ordering a pair of 062 since that's what came off.

  4. #4


    yeah there's seems to be a lot of difference in opinion on them. Not familiar enough to make any recommendations there.

  5. #5


    I'm not well versed in Chevy heads, that's why I'm putting on what I took off.

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