
These have much larger heads than the factory bolts and are too large for aftermarket flywheels. Anyway, that was my experience. I have a 1967 GTO with a Center Force dual slipper clutch and the heads of these bolts got caught in the springs on the clutch disc hub. So if you buy them, be sure to check them before assembling everything. I'm sure they are great bolts and very strong like all ARP bolts, they're just a lot bigger and don't fit my secondary flywheel.

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