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Old 12-06-2010, 05:59 AM
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Pontiac Press-In Oil Through Rocker Studs

What years did Pontiac have pressed in, through the rocker stud oiling, and what diameter were they?...

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Old 12-06-2010, 07:00 AM
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Pontiac blocks were machined for stud oiling through 1964. IIRC, some H.O and SD engines used p-rod oiling in '63 and possible earlier. No factory stud oiling was used after '64, in any event. By '65 the blocks were made w/o stud oiling provisions.

The studs were 7/16 bottlenecked to 3/8" like the later studs, I believe.
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Old 12-06-2010, 08:25 AM
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The reason I ask is because I have what is suppose to be a Factory "Super Duty" screw-in rocker stud conversion set. It has a drill bit, guide, 16 screw-in oiling studs etc....
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Old 12-06-2010, 10:18 AM
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Those parts may have been for the '60-up (until pushrod oiling became routine) SD engines, or for engines being modified to SD specs.
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