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Click on image for the lowdown. 
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8 members (David Bush, kades51, BC59, MikeE, Bucker, MickeyP, Rexville48, dt235sd),
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guests, and
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Global Mod,
Mod | | | Forums66 Topics128,049 Posts1,055,702 Members48,426 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jul 2006 Posts: 186 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 186 | I've been to several sites and books and I can't decipher this engine number. It's a 235 cu in and the number stamped on the block is F255X. I figure the F is for Flint plant the 55 is the year but the 2 prefix and the X suffix have me stumped. Anyone have a clue?  Thanks Craig
Still trying to get ole Betsy back on the road.
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The 2 signifies it's from a 2nd Series truck, and the X is the code for the standard transmission 235 in 3100 and 3200.
Bill Burmeister
| | | | | Joined: Mar 2011 Posts: 1,146 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 1,146 | F255XF = Flint Michigan, Engine Assembly plant 2 = 2nd-Series, Production run from March 1955 thru Augusts 1955 55 = 1955 Model Year X = 3100, 3200 Regular, No RPO = Regular Production Option On 8 cylinder 55 On 6 cylinder 255, Denotes 2nd-Series 1955 truck models. 1955 2nd series truck, GM Vehicle Information Kit....pdf page 6, actual page 63 | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | |
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