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Post by oncea3fan on May 30, 2014 6:35:07 GMT -6
can anyone find this casting number off a sbc heads 16185906, they don't carry a "GM" casting on them any where
guy says they are after market but doesn't know the manuf.
thanks
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Post by Krooser on Jun 9, 2014 10:06:16 GMT -6
I can't find any # like that...
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Post by moldy on Jan 4, 2016 1:42:50 GMT -6
Vortec truck heads. Same as the 062, just has a hardened exhaust seat for engine pull a load for a extended time.
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marc
Pit Crew
Posts: 1 
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Post by marc on May 19, 2016 0:17:32 GMT -6
I have some 3986388 cast# heads with the captain's bars above the cast number. Are they good high torque heads for a pickup truck
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