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| | | Forums66 Topics128,153 Posts1,056,842 Members48,456 | | 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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| | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Hello, Allan, Here is a listing that shows the years for different lifters. http://chevy.oldcarmanualproject.com/1929_57chevyparts/57cmpc0142.htmThe major difference/change in the "848" heads was the higher compression. That head might have come out in late 1955, but is considered to have been first used in 1956 vehicles). HrL and others might comments on the cause of the higher compression - probably due to a change in the combustion chamber (and not due to the change in lifters)? | | |
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