| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,012 Posts1,055,318 Members48,419 | | 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 2012 Posts: 11 New Guy | | New Guy Joined: Jul 2012 Posts: 11 | Truck is a 49 3100. Engine is a 235. I'm hearing a subtle tapping when cold so thought I'd check valve clearances. But discovered that I don't know if I have hydraulic lifters or not. Here's what I found on the engine:
Flat plate behind distributor: F410A
On block above starter: CON40 AD 57 (not sure if it's an A or a dimple).
On cyl head above intake manifold: 3836848 GM10
On block below distributor: 383004
On cyl head above plug #3: B50 848/850
Hopefully this provides enough info to ID.
Appreciate any help,
Mike | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | I can't match the block number and I guess nobody else can either. Are you sure it's correct? Or: Pull the side lifter cover off and check that way. You'll know for sure than.
Drew
| | | | | Joined: Jul 2012 Posts: 11 New Guy | | New Guy Joined: Jul 2012 Posts: 11 | How will I know? What should I look for beneath the side cover? | | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | Most likely the casting number is 3837004 which is a 1955/57 235 engine
The 848 head came on the 1956-1962 engine. | | | | | Joined: Sep 2010 Posts: 695 Shop Shark | | Shop Shark Joined: Sep 2010 Posts: 695 | The side cover removed, would allow you to see the lifters. | | | | | Joined: Jul 2012 Posts: 11 New Guy | | New Guy Joined: Jul 2012 Posts: 11 | It's definitely 383 004 (nothing in between). Sorry for my inexperience, but...with the side cover off, how would the lifters of a hydraulic system look different from push-rod? Will I simply see the pushrods? | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | the 55 shop manual is here - close enough to the probable year, should tell you what to look for, but it's unlikely it's got hydraulic lifters Bill | | |
|
|
| |
