| |
Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
====
| | | Forums66 Topics128,010 Posts1,055,299 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!
| | 
#10914 11/24/2004 10:15 PM | Joined: Nov 2004 Posts: 266 Custom Title | | Custom Title Joined: Nov 2004 Posts: 266 | I've got my 235 torn down and found that it has been bored .060 over at some point in it's lifetime. The bores aren't terrible and could probably be rehoned, but is it possible to bore it larger, to say .080 or .125? How big can you go with one of these. It's a '55 block.
Also, how much can be taken off the crank? Right now the mains are at .020 and the rods at .040. Is it time to find a new crank?
Thanks
49 Chevy 3600
65 Chevy K10
48 International KB-1 Service Truck
55 Willys CJ5 - Chevy 331 powered
26 Model T Roadster Rat Rod
70 Tucker Sno-Cat 442-A
96 Dodge 3500 Cummins dually flatbed x-cab 4x4
06 Jeep Wrangler LJ rock crawler
If you can't fix it with a hammer, it's an electrical problem
| | |
#10915 11/25/2004 3:06 AM | Joined: Mar 2001 Posts: 384 Shop Shark | | Shop Shark Joined: Mar 2001 Posts: 384 | Most suppliers carry overbore pistons to .08 over--I wudn't want more than that myself but talk to ur machinist.
Buzz'n Half Dozen
| | |
#10916 11/25/2004 3:23 AM | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | My 54 235 went .080 over no sweat. First issue should be, what sizes are currently available, ie. piston, rings and bearings?
Re. the bore, you can have the cylinders sonic tested. | | |
#10917 11/25/2004 11:40 AM | Joined: Sep 2004 Posts: 235 Shop Shark | | Shop Shark Joined: Sep 2004 Posts: 235 | You have to see what they make for over size bearings. How bad is it? If a bearing is gone it's probably time to replace. | | |
#10918 11/26/2004 8:36 AM | Joined: May 2004 Posts: 62 Member | | Member Joined: May 2004 Posts: 62 | Patrick's lists pistons for +.080.
Be sure your machinist sounds out the cylinder wall thickness to be sure you will have enough wall left before you bore it! Rust pockets on the water side of the cylinder can cause thin spots and a bad day!
Sleeves can be an option and send you back to standard bore size!
47 Fleetmaster, Hotrod 6, 5 Speed
50 Sedan Delivery, 327, 5 Speed
| | |
|
|
| |
