| |
Click on image for the lowdown. 
====
| | |
8 members (MickeyP, Gdads51, Ridgeback, 55shaker, Gray_Ghost, 32Fordpuchoptop, Charles in CA, elhippie64),
114
guests, and
1
robot. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,118 Posts1,056,302 Members48,439 | | 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!
| | 
#38603 07/22/2003 2:26 AM | Joined: Jan 2000 Posts: 26 Shop Shark | | Shop Shark Joined: Jan 2000 Posts: 26 | I have a '55 4400 truck with a 235 engine. The engine is shot. I have another '56 235 engine in a '37 Chevy 1.5 ton truck made into a tractor. It runs, and I am swaping that engine into the '55. I pulled the head on the engine to give the head the once over before it goes into the truck. I checked the cylinders for roundness, and have come up with a average number of 3.567" bore. My Motors manual says the bore of the 235 is 3.452". Is this a misprint??? I am reading the mics right, and my tools are not inaccurate, at least that much. Could the 235 be bored out 0.100"? The cylinders are round, the pistons fit well, and bores are smooth.
Any thoughts on this???
1942 Chevy G7104 1.5 ton 4x4
1946 Willys CJ-2A
| | |
#38604 07/22/2003 4:00 AM | | Anonymous Unregistered | | Anonymous Unregistered | Blue - my manual says a stock bore is 3-9/16 inches which is 3.5625" Sounds like the bore is fine. | | |
#38605 07/22/2003 8:07 AM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Also the top of the pistons should have the oversize stamped into them if they are oversize.
0.10 , 0.20, 0.30 and so on.
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
-
-
Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
| | |
#38606 07/22/2003 7:37 PM | Joined: Jan 2000 Posts: 26 Shop Shark | | Shop Shark Joined: Jan 2000 Posts: 26 | Ok, my book must have a misprint in it. I cleaned off the pistons and looked for the stampings of oversize, but did not find any. Ken, your numbers make sense, as I have about a .005 - .006 ridge on the top of the bore where the rings dont hit. Is the wear on this engine (.005-.008) acceptable?
1942 Chevy G7104 1.5 ton 4x4
1946 Willys CJ-2A
| | |
#38607 07/22/2003 8:41 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | That might be acceptable as long as the ring gap and ring lands are and the cylinder taper isn't too bad, but you might want to have it bored 0.10 over if your ring or piston gap is out of spec. Don't bother getting the pistons knurled, that won't last.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
|
|
| |
