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#1
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Help with Rod ID
Have a set of rods, reportedly Super Duty... Pics below, no numbers that I can find, marked GM ANY IDEAS?
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#2
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Seeing as how nobody more knowledgeable than me (that's a lot of people) has stepped up...
IIRC, all the 58-62 rods were forged. Could these be good ones? Without any way to ID them odds are against it. Don't abandon research, it beats regret. I'm just steeling you for a possibility. Hope for the best, but prepare for the worst. Surest way to know if they're the regular rubber rods would be finding someone who can perform a hardness test on them. Brinell numbers are known. Sounds expensive though? Dunno, never looked into it. |
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#3
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I would say 1963-1965 1/2 #544956 421 H.O. rod.
In general, widths of the big end of the Pontiac rods are .995", and the small ends are 1.250". Exceptons are 1958-63 S.D., .985" big end. 1973-74 S.D., .990" big end. 1969-70 RA V, .985" small end, .990" big end. Lots of info on rods in Pete McCarty´s second book. |
#4
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If you measure the rod from under the rod bolt head to above the rod nut, if it is exactly 2 inches, its an SD rod! other rods are 1 15/16th when measured the same way
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1966 Lemans, 3700Lbs, 406 ci, #96 Heads, Crane 467/494 cam, RPM Intake, Q-Jet, 11 inch Converter, 3:90 gears, 3 inch exhaust, Best ET 12.62@107 MPH 414ci shortblock coming soon! |
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