| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,041 Posts1,055,593 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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | That O might be a 0 and would be part of the unit number (sequence number). http://chevy.oldcarmanualproject.com/models/engine.htm#55engF55Z - second series 1955, standard 235 engine 3836233 = 1955 block casting code IIUC = If I Understand Correctly Hope that Pre '68 Dave will post information about rocker arm assemblies (over the years there were differences in the oil-feed path, and maybe in the rocker arms?). | | |
|
|
| |
