Your engine block casting# doesn't match any of my resource listings. It seems to lack enough digits. Perhaps you can post pictures of the block and head casting numbers plus the stamped serial number from the machined pad next to the distributor??? More info is needed to try and help you ID your engine.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
If you have even fair to middlin' mechanical skills, you can rebuild that carburetor yourself. People here will talk you through it step by step if necessary.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
A "rebuilt" Rochester is still a Rochester. Don't get your hopes up too high! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Tob, The casting# 366855 decodes as a GM (Chevy/Buick/Olds/Pontiac) 250 I6 used form 1966-84. To further ID your engine, please look for and provide the engine serial# which is stamped into a machined pad surface just to the left of the distributor where it's enters the block. You may need to clean off some paint and road grime to see the info. That can be used to further ID what you have.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)