- Joined
- Mar 5, 2013
- Messages
- 313
- Reaction score
- 5
- Location
- Carlisle, PA
- My Car
- -Former 70 & 72 Mustang coupes owner.
-69 Torino GT, Formal Roof, 351W, Edelbrock 600 cfm, dual plane high rise intake, long tube headers, AOD trans, dual flowmasters, Pertronix II Billet, 3.5 TRACLOC g/r, 15" Magnum 500s, 100A alt, mini-starter
-70 Mach 1, 351W, FMX
Gurus,
I swapped the valve stems seals on my 1970's 302 without issue. I used Comp-Cams 502-16 http://www.jegs.com/i/COMP-Cams/249/502-16/10002/-1 valve stem seal. Made a world of difference. Smoke = almost none.
On my 1969 Torino's 351W I'm doing the same with the same valve stem seals but the ones I'm removing are a tad taller. When pushed all the way down there is a slight gap. I'm assuming this is a big deal but can't find any literature that tells me otherwise. See pic, what do you all think?
The one on the right is the old, cracked one. The one on the left is the new one. Disregard the white color, it's black but has some powder coating on it.
Jegs and Summitt say the Comp-Cam 502 will fit or is universal but I'd rather not go through the pain of finding out after I pull all the springs. The diameter (inner) is spot on. The old one is definitely the original stock.
It's stamped (in plastic) FordMOCO and is marked with C7OE-D IA and M2D7O-B. The only Internet reference is a guy with an old Bronco that found plastic pieces in his oil pump filter. Oh yeah, I HIGHLY recommend you swap these out. Cylinder #1's exhaust valve stem seal was in three pieces when I got the spring out.
I swapped the valve stems seals on my 1970's 302 without issue. I used Comp-Cams 502-16 http://www.jegs.com/i/COMP-Cams/249/502-16/10002/-1 valve stem seal. Made a world of difference. Smoke = almost none.
On my 1969 Torino's 351W I'm doing the same with the same valve stem seals but the ones I'm removing are a tad taller. When pushed all the way down there is a slight gap. I'm assuming this is a big deal but can't find any literature that tells me otherwise. See pic, what do you all think?
The one on the right is the old, cracked one. The one on the left is the new one. Disregard the white color, it's black but has some powder coating on it.
Jegs and Summitt say the Comp-Cam 502 will fit or is universal but I'd rather not go through the pain of finding out after I pull all the springs. The diameter (inner) is spot on. The old one is definitely the original stock.
It's stamped (in plastic) FordMOCO and is marked with C7OE-D IA and M2D7O-B. The only Internet reference is a guy with an old Bronco that found plastic pieces in his oil pump filter. Oh yeah, I HIGHLY recommend you swap these out. Cylinder #1's exhaust valve stem seal was in three pieces when I got the spring out.
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