Thread: Correct way to adapt an L67 from a GTP with automatic onto a manual transmission?

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  1. #1 Correct way to adapt an L67 from a GTP with automatic onto a manual transmission? 
    SE Level Member sparkydog's Avatar
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    I've got an L67 off of an 01 GTP and an L36+T5 from a 98 Camaro. What is the correct thing to do with moving the flywheel off the L36 onto the L67? I have read a few threads on the webz and I always end up confused over whether it's just a simple swap or that I have to worry about re-balancing the flywheel.
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  2. #2 Re: Correct way to adapt an L67 from a GTP with automatic onto a manual transmission? 
    GXP Level Member Turbocharged400sbc's Avatar
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    i spent 200$ to check 8 flexplates and 2 meziere rebalanced

    early SII L67's could be either 21 or 22 ozin. fwd/rwd na is 20, meziere is 20, later L67/l32 is 21.

    lookup a Balancestar location near you or find a local machine shop.

    if your not beating the hell outta it and keeping it under 6krpm...youd probably be ok as is.......but if your factory tollerances are closer to 22oz inch (remember these engines are getting tollerance stacking during assembly and can be anywherre on the tollerance bellcurve.
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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  3. #3 Re: Correct way to adapt an L67 from a GTP with automatic onto a manual transmission? 
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    to be 100% sure, I may want to talk with "Fierorog" (facebook, fiero forums). He cuts alot of the f-body flywheels down and re-balanced to be used in a FWD application as needed. Youre won't need to be cut down, but probably should be balanced. I'm sure he would either sell you a new flywheel and balance it, or just balance yours for a reasonable amount of money and it'd be done by someone who does them all the time.
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