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Mod | | | Forums66 Topics128,080 Posts1,055,953 Members48,430 | | 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!
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#36387 10/02/2003 12:50 AM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | I was planning on putting a lot of the old '54 235 stuff on my new '61 261. I didn't get a lot of the slap-on items with my 261. But there are no holes in the 261 block for the 235's generator bracket. So, it means an alternator and a change-over to 12 volts is in my future, right? 1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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#36388 10/02/2003 5:39 AM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Sounds like as good an excuse as any for an upgrade. Go for it. | | |
#36389 10/02/2003 5:41 AM | Joined: Apr 2003 Posts: 140 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2003 Posts: 140 | Seems odd. In '61 everything was still generator. Maybe the 261 has a different bracket setup, but I'd bet there's a way to mounts a generator.
George | | |
#36390 10/02/2003 5:47 AM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Generators work but I would suggest going with the alternator since you might have to fabricate some stuff anyway 
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!
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#36391 10/02/2003 10:07 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | My generator mounts on my '62 are up the side of the block a little ways, where there are two bosses cast and drilled. They are not down low on the flange like 216 blocks were. Did you look up there? It had to be somewhere. I used the original generator brackets to mount my alternator, and that's a good way to do it. It came out perfectly lined up. I'd take a picture but I would have to take out the oil filter and alternator for you to see it. If you pull up the 261 article and look at one of the pictures on the bottom you can barely see one. It's the two bosses along the thin webbing on the front of the drivers side block. Are there pipe plugs in there or something?
Paint & Body Shop moderator A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#36392 10/03/2003 2:58 PM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | 4ontheFloor, There are several threaded holes up on the block but none are spaced right for my old bracket. There's a 261 and a newer 235 at the junkyard that I'll visit tomorrow. Thanks!! 1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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#36393 10/03/2003 3:53 PM | Joined: Jul 2002 Posts: 385 'Bolter | | 'Bolter Joined: Jul 2002 Posts: 385 | Wally, are you still in the Seattle area (where's waldo  )? I have a couple generator brackets in the leftovers bin, I can dig them out and measure the holes if you like. One is off my 248GMC, the other is of unknown origin (it's GM, but don't know which flavor). If you like I will dig them out and measure the mounting holes. | | |
#36394 10/03/2003 7:06 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | I ended up having to elongate a hole, I think, because all I had were 216 brackets.
Paint & Body Shop moderator A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#36395 10/03/2003 7:15 PM | Joined: Jan 2001 Posts: 1,423 ODSS President | | ODSS President Joined: Jan 2001 Posts: 1,423 | Is it true you can get threaded rod and a half dozen nuts to fab your new alternator on your old genny bracket? Anyone have pictures?
~ Cosmo 1949 Chevy Half Ton Rocinante, like Don Quixote, he is awkward, past his prime, and engaged in a task beyond his capacities. "...my good horse Rocinante, mine eternal and inseparable companion in all my journeys and courses." ...Don Quixote, Cervantes "If you come to a fork in the road, take it."...Yogi Berra "Rudeness is the weak man's imitation of strength." ...Eric Hoffer
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#36396 10/03/2003 11:14 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | I just used long bolts, but that is true. I don't have any pictures because I can't get a good angle on it.
Paint & Body Shop moderator A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#36397 10/03/2003 11:44 PM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | Hedgehog, I'm back East (in Montana). 1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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#36398 10/05/2003 5:07 PM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | Here's a drawing of what I found out on my tour of the yard yesterday. I don't have a digital camera but I can make line drawings. Bolt holes 1 and 3 are for the 261 generator bracket which is about 1" longer than 216/older 235 bracket. I can elongonate a hole on my old bracket and make it work like 4ontheFloor said. When the 261 is in a larger 2T truck, holes 1,2 and 4 are used for a side motor mount which bolts over the generator bracket. The three holes at the "7" must be for some kind of center motor mount (COE?). Holes 5 and 6 are for the oil lines. Thanks, everyone!!! [img] http://pic1.picturetrail.com/VOL137/662484/1080315/35107099.jpg[/img] 1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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