getting ready to upgrade my timing chain to a comp cams double chain unit anyone know if the stock timing cover will fit or not??

 

Don't know exactly about that one but some do require some grinding to make fit. FWIW my cam guy said a Rollmaster single is all I need for my .630 cam.

 

Some clear and some don't, my Rollmaster double fit with out and grinding. I would pull all 8 spark plugs, install the the timing set, torque the cover on and roll the engine over with a socket wrench a bunch of times. Remove the cover and look for contact, also turn down the radio and listen for contact as well.

 

Fit a Cloyes hex a just gear set with the C5R 'extreme' chain & you will have no issues. TSP have them.

 

The timing set isn't going to hit the front cover on the Gen III engines, but it usually will hit the oil pump right behind the pickup, even with the spacers. The Melling pumps are usually clearanced already, but you'd want to check anyways.

When you use a double, you have to use the oil pump spacers to clearance the pump away from the timing set. The pump is moved forward far enough with the spacers that it will hit the front cover. It's been awhile since I've clearances one, but I remember a couple of the oil pump bolts hit and a portion of the pump outlet into the engine hit. Button head bolts will help.

 

Good info ^^^

I was always told the chain would hit the cover around the cam gear. FYI... I'm running a TSP ported LS6 oil pump with OEM bolts and the chain clears the cover and the pump with the spacers inplace.