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Author Topic:   casting numbers
30rulz
Dirt Roller

Total posts: 24
posted December 29, 2002 10:05 PM
can someone tell what heads I have? casting number 378450 sbc i think the y might come on a 305

jakedawg23
Dirt Roller

Total posts: 5
posted December 29, 2002 10:40 PM
are you sure they arent 376450? Cause i have a set of those that came off a 305

URDUSTED
Dirt Roller

Total posts: 20
posted December 30, 2002 09:10 AM
376450.....75-81...262/267/305..6 or 7 exhaust bolt holes, 60cc chamber www.mortec.com

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