454 cam install question
Thread Starter
Drifting
Joined: May 2005
Posts: 1,909
Likes: 6
From: Lake Arrowhead - Georgia > 72 Base Coupe & 74 BB Roadster
454 cam install question
Sorry to post this up again. This is my 1st rebuild and I don't want to duck it up. I had some good responses in the general section a few days ago, but I am still a bit unsure. The assembly manual mentions nothing about a "retainer plate". When I disassembled this motor, I don't recall having removed anything from behind the cam gear. Does a 74 BB have anything installed in the 2 threaded holes - left and right of the cam hole ? This is not a very good pic, but all I have right now. Look at the camshaft hole. See the 2 small threaded holes at the 3'oclock and the 9'oclock positions. What are those for...???
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
Those aren't really used on Mark IV blocks unless a factory gear drive was in place - truck engines are the only factory ones I've seen used. They're used on the Gen 6 blocks as a retainer plate for the hydraulic roller cams. If you're running a flat tappet piece, they do nothing. HTH
