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Old 04-24-2016, 08:34 PM   #1
davepl
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Check my brain math!

I'm replacing a ZZ502 with an LS3 (eRod). It was and will be backed by a TKO-600 five speed with a Hayes clutch.

I've reused the 621 bellhousing, clutch, pressure plate, and throwout bearing. I did this by ordering a GM flywheel (similar to the SACHS unit) that is supposedly 0.400 thicker than a normal LS, which should put the flywheel deck face at the same spot.

Sure enough, when I mocked it all up and measured BBC vs LS, the flywheel face was within 2 hundredths of an inch, probably within my measurement error.

I also checked to make sure I have a clutch fork angle of about 7-10 degrees.

I had no luck trying to do the dead reckoning method where you work out the distance from the flywheel face to the pivot ball.

What are the odds, given I confirmed the flywheel face height and fork angle, that this is set up correctly? Or do I have more work and homework to do?

Thanks,
Dave
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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