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Long time classic car owner, but still a Corvette newby..... 74 Coupe, 454, Turbo-hydramatic. How can I EASILY determine whether I have the 153-tooth or 168-tooth flywheel?
Starter nose cones with staggered mounting bolt pattern are for the 168, straight pattern is for the 153.
Your 454 should have a 168 tooth flexplate (not flywheel), but noone knows who's been there before so I suggest you follow 7T1vette's suggestion, remove the converter cover and count
Is there a size/diameter difference between the various flywheels?(153, 168, etc) I have a flywheel cover on my 350cu engine with the TH400 tranny, and I have to shim the cover 1/4" at he tranny to clear the flywheel.
No big deal but it doesn't seem normal.