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TxSqueeze · 05-07-2010, 05:05 PM

Alright, casting numbers in the heads are as follows: F12-74, GM 11T. Casting number on the block is GM 10T. Will have to look for the other casting number on the block tomorrow afternoon.

05-07-2010, 05:05 PM	#28
TxSqueeze Registered User Join Date: Dec 2008 Location: Crane, Tx Posts: 147	Re: Bought a 68 swb... Alright, casting numbers in the heads are as follows: F12-74, GM 11T. Casting number on the block is GM 10T. Will have to look for the other casting number on the block tomorrow afternoon. __________________ 68 SWB- Heads/Cam 6.0 w/4L80E swap in progress Last edited by TxSqueeze; 05-07-2010 at 05:09 PM.