Thread: Need Chevy Guys Help On Tranny Id

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For the application I am using it for, strength is no issue. Plus, I can always change it down the road (not literally ) For now, if it bolts up to a standard chevy bellhousing and regular clutch stuff fits, it will be ok.

My concern also was that since he advertised it as '64-'67 Nova, to me that spells 4 cylinder stuff, and I was afraid it would have some goofy bolt pattern or something.

I know Ford changed their balance from 28 oz to 50 oz in like 1981. Are there similar changes in Chevies, like some were internal up to a certain year then went to external?? Mine is a 1999 5.7 Marine roller cam engine. Does that sound like 168 tooth or 153, or what?


Thanks for all the help, guys.


Don

For the Vortec motor, it is internal balanced but who cares? Go to the Chevy dealer (dont wear any Ford shirts) and ask for a manual flywheel for that engine (98 Vortec). There will only be one that fits, you will not be given a choice of a 153 or 168 tooth wheel. The one piece main engines have a bigger bolt pattern than does an earlier small block so the choice is what it is.

Get the bolts from the Chevy house also. You will have to get a clutch pressure plate to match the flywheel pattern and a clutch disk with the right spline for the tranny. Vortech engines had a hydraulic clutch and would simplify your linkage but cause you to put in a clutch master cylinder.

Have you ever driven a bucket with a stick shift? Make sure you have a washable interior in the thing.......