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| | | Forums66 Topics128,021 Posts1,055,357 Members48,420 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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#20707 05/17/2003 4:24 AM | Joined: Jan 2000 Posts: 206 Member | | Member Joined: Jan 2000 Posts: 206 | 302s all had 6-bolt cranks. Not sure about 270s but I've never seen one with 4 bolts... But by late 1954, all GMCs were 6-bolt. By that time 228s were history, so anything 55 -1st series and later will have the 6 bolt crank. | | |
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