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Thread: sbc heads

  1. #1

    sbc heads

    Hi, I have a 383 stroker and i have two set of heads which is gm steel heads 291 and the 041 which is a better heads . Thanks.

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Jan 2008
    Posts
    1,289
    Chubby,
    The 291 heads can be small or large valve. The larger coming on 302-327 motors dated 67-69. The smaller valves on 350s from 68-69.

    The 041 is a small valve head from 68-70.

    Remember this, the 291 likely have NO mounting holes for accessories, be sure to check for them. If they are not present, your local machine shop can add them.

    I personally would go with the larger valve 291, imo, both heads are just dandy for the street. I sold mine to my buddy for his '69 Camaro, loves them!!
    Hope this helps, and feel free to correct me if I am wrong on any of this......I am getting old!

  3. #3

    sbc heads

    the 291 has 195 valve and the 041 got 202.

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    Jan 2008
    Posts
    1,289
    The 041 has 2.02 valves? Have they had some work done on them? I could be wrong, and likely am, but I don't recall an 041 with 2.02 valves. If the 041s are in fact 2.02, I would use them. If neither sets of heads have been to the machine shop yet, it might serve you well to consider buying some aluminum heads to replace them with. I can't imagine a huge cost difference if being used on the street. Good luck.

  5. #5

    sbc heads

    the 041 is really the 041x heads which comes 202 on the valve side only spring work has been done, thank you for your knowledge.

  6. Racing Junk


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