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Thread: LSM cam with alternate firing order ??

  1. #1
    Junior Member SHOW GUEST
    Join Date
    Sep 2007
    Posts
    4

    LSM cam with alternate firing order ??

    On my new 540, my engine builder talked to LSM about building an extreme pump gas motor - 10.5-1 compression - with 840 degree lift
    and 1.8 T & D shaft mounted rockers..LSM wants to use alternate firing
    order ( not just the 4 - 7 swap)... What do you guys think?? Motor must make at least 700-725 on the dyno..

  2. #2
    Senior Member DYNO OPERATOR
    Join Date
    Feb 2006
    Location
    VA Hospital, Dallas, Tx (214 302 1924) cell-972-464-7400
    Posts
    540
    I love them.

    The C-Swap or 4/7 - 2/3 swap has no negatives. It hellps the engine to idle smoother and it runs smoother and is easier on the crankshaft. The cylinder temps will also be more even and more stable.

    Ed
    " Let all things that hath breath, praise the Lord. Praise Ye the Lord" Psalms 150 vs 6.

  3. #3
    Junior Member SHOW GUEST
    Join Date
    Sep 2007
    Posts
    4
    thanks ed... ever heard of A swap?? I vaguely remember something about the A firing order???


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