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#32153 05/07/2005 4:58 AM | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Remember that the 454 is externally balanced. It requires a 454 specific flex plate or clutch disk.
That '68 didn't come stock with a 305. Could it have been a 366 or 427? If so the existing raditor could be big enough.
Also, if anything was butchered to put the 305 in, you may have to correct some issues before putting a new motor in. Otherwise a big block was available in a '68 so stock mounts will be available if the existing ones aren't right.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
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