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  1. CBatstone

    7M Head Condition Confusion

    He doesn't. He builds everything from Domestic V8's to the 12cyl Rolls Royce engines that the redbull aerobatics planes use. I think/hope he did a good job with my bottom end. But I don't think he knows too much about this 'weird' condition with the 7M Aluminum Heads. Are there ANY other...
  2. CBatstone

    7M Head Condition Confusion

    I am having a hard time determining if my 7M GTE Head is good…or not. I had it sent out to Pittsburgh Crank for a rebuild, they cleaned it up, decked it, and mailed it back saying it was ok. My other shop who did the engine work, says it does not look good. He says…“the cam journals are...
  3. CBatstone

    How to break in a new engine

    This thread has been pretty excruciating to read. Break in process is defined in time by the amount of time you have before the cross-hatching in the cylendar honing is still there. It is there to wear the piston rings into the exact shape of the cylendar wall. Once the cross-hatching from...
  4. CBatstone

    Rebuild cost...

    www.titanmotorsports.com has cleavite main and rod bearings for the 7M... 48 & 30$ respectively