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8upZR1 · 01-12-2009

I dont think the damage is of concern cause its the bolt that holds the gear to the cam. Ive seen quite a few DOHC 4.6L & 5.4L Ford motors that are used for endurance racing. No keyways what so ever. If the bolt were to loosen, the sprocket would spin. The engine builder has quite a class wins in 12 & 24 HR deals so when I saw it I was dumb struck. I had spent the majority of the previous week in the machine shop fabbing custom offset keyways for my 4.6L, which was apparently a waste of time.

Haibek has reuseable ARP bolts for cam sproket.

01-12-2009	#194
8upZR1 Join Date: Jun 2006 Location: Thunderbolt, Ga. Posts: 253	Re: LT5 Assembly Project I dont think the damage is of concern cause its the bolt that holds the gear to the cam. Ive seen quite a few DOHC 4.6L & 5.4L Ford motors that are used for endurance racing. No keyways what so ever. If the bolt were to loosen, the sprocket would spin. The engine builder has quite a class wins in 12 & 24 HR deals so when I saw it I was dumb struck. I had spent the majority of the previous week in the machine shop fabbing custom offset keyways for my 4.6L, which was apparently a waste of time. Haibek has reuseable ARP bolts for cam sproket.