Re: Is "all original" worth keeping a 305?
Quote:
Originally Posted by 68c10owner
I`m replacing the 305 in my 85 GMC SWB with a crate 350 as soon as I can afford it. I was told it probably isnt the original engine anyway but not really worried about numbers matching on a truck unless it was a original SWB 454 truck like my 75 GMC was.
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Did those '75 truck 454's have peanut port heads on them? I have heard much conflicting info on when the peanut ports were first used. I think I have it nailed down to 75 or 76. I am looking at a 75 truck 454 that is a few miles away from me so I can't pull a valve cover to know for sure. TIA and sorry for the hijack.
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76 Chevy K20
76 GMC K15
77 Chevy C10
77 Chevy K10
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