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Yesterday I got the motor running in the Supercab. I was getting a popping sound, didn't sound like it was coming out of the exhaust. Anyhow I just pulled the valve covers, set the motor to TDC and on the intake valve of the #1 cylinder I measured .063 thousands clearance beween the rocker and the valve. The book calls for .098-.0198 with the lifter collapsed. I dont have the tool to collapse the lifter and they don't list a spec other than that. So if they call for .098 with the lifter collapsed and I have .063 uncollapsed I think I need to order some longer push rods. Does this sound right?
I should also add that the heads were shaved .012 thousands.
Edit:
So after looking at comp cams sight it looks as though push rod length is either .060 short or .060 long over stock?
So if I go with the .060 longer pushrod it will close up my .063 gap in the uncompressed state. Does this sound about right to you guys?
Cam info: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=300948677200
I should also add that the heads were shaved .012 thousands.
Edit:
So after looking at comp cams sight it looks as though push rod length is either .060 short or .060 long over stock?
Ford
7837-16 9.500" V8 351M & 400M, 1971-79 5/16" H-H No
7838-16 9.440" V8 351M & 400M .060" Short, 1971-79 5/16" H-H No
7839-16 9.560" V8 351M & 400M .060" Long, 1971-79 5/16" H-H No
So if I go with the .060 longer pushrod it will close up my .063 gap in the uncompressed state. Does this sound about right to you guys?
Cam info: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=300948677200