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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!
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| | | | Joined: Nov 2014 Posts: 623 'Bolter | | 'Bolter Joined: Nov 2014 Posts: 623 | My old '51 recently stripped some teeth, apparently, and I'm in need of a new gear (which I've found at a few places) and from what I've been told, a new cam shaft would be in order, too. I don't want to put in a piece of junk for a shaft, so I'd like to know where anyone on this forum has found a quality shaft and gear for their 235. Although the engine is a 1956, I'm curious as to exactly what years of this engine have identical parts in this department. But also, and even better, would be someone leading me to a good set of gear/shaft for my truck. No Chinese junk, please. I don't want to have to do this again in the next 10 years. This is my daily driver. Thanks! Lee
"When I rest, I rust"
1951 3100 5 window w/ '56 235
| | | | | Joined: Jan 2013 Posts: 1,518 'Bolter | | 'Bolter Joined: Jan 2013 Posts: 1,518 | Take your camshaft and send it to delta camshaft in Tacoma Wa for a regrind. Also if you have solid lifters,send them too, so they can machine the bottoms for the regrind, run you only about $150. They will also sell you a quality timing gear setup too. I have been using them for 40 years. Cam cores are getting scarce so they might not have an exchange necessitating you sending yours in. http://www.deltacam.com/
Last edited by sstock; 10/03/2019 3:55 PM.
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
| | | | | Joined: Dec 2017 Posts: 1,652 'Bolter | | 'Bolter Joined: Dec 2017 Posts: 1,652 |
Mike
| | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | Before tearing out the old cam I would check the lift of each lobe with a magnetic base dial indicator. If each gives a lift of 0.404 then it's not worn and if the lift is not down then the duration will be right also. We have a solid lifter with a push rod brazed to it to make checking easier than trying to work through the side cover opening.
Evan
| | | | | Joined: Nov 2014 Posts: 623 'Bolter | | 'Bolter Joined: Nov 2014 Posts: 623 | Thanks guys! These ideas will help out, and I appreciate them. Thanks for the tip on delta cam, sstock.
"When I rest, I rust"
1951 3100 5 window w/ '56 235
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