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| | | | Joined: Feb 2017 Posts: 83 Vintage Truck & Tractor | | Vintage Truck & Tractor Joined: Feb 2017 Posts: 83 | I have a 61 C20 with a tired 235. I have found a rebuilt 250 that was un a car vi rage late 60"s. Will it swap in place of my 235 and bolt up to my 4 speed. 1 more thing, I ha e that hydralic clutch slave cylinder as well.
Current project; 1961 C20, 235 I6
| | | | | Joined: Feb 2004 Posts: 29,835 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,835 | You'll need a year-correct V8 bellhousing for the truck to make the 250 and the transmission mate up. The 235 housing and the 250 do not play well together. The V8 also has the throwout fork for the hydraulic clutch on the passenger's side.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy David C. the short answer to your question as I struggle to read it is no. Could you please edit your question to correct the mistakes and missing letters? The 250 engine uses a totally different mounting system than your 235 and the bellhousing from your 235 will not bolt up to the 250 without an adapter. Further complicating things is the fact that the 1960 through 62 trucks used a hydraulic clutch which operated out of the right side of the bellhousing. I'm not saying the swap cannot be done, but it will be a considerable amount of work. | | | | | Joined: Feb 2017 Posts: 83 Vintage Truck & Tractor | | Vintage Truck & Tractor Joined: Feb 2017 Posts: 83 | I got the message. It will be a struggle to say the least. I will keep looking for something else.
Current project; 1961 C20, 235 I6
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | The 250 and its brothers are about 3" longer than a 235, also, again, it is doable, just keep these issues in mind.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2011 Posts: 1,458 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,458 | Should be able to locate a 235 or 261 in Montana I would think.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Feb 2017 Posts: 83 Vintage Truck & Tractor | | Vintage Truck & Tractor Joined: Feb 2017 Posts: 83 | You'll need a year-correct V8 bellhousing for the truck to make the 250 and the transmission mate up. The 235 housing and the 250 do not play well together. The V8 also has the throwout fork for the hydraulic clutch on the passenger's side.
Jerry Do you mean a 283?
Current project; 1961 C20, 235 I6
| | | | | Joined: Feb 2004 Posts: 29,835 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,835 | All the V8 bellhousings have the same bolt pattern. The one you need will also have the right side throwout fork to work with the hydraulic clutch release system. I believe that one was only used for 2 or 3 years, including 1961. The 194/230/250/292 inline sixes have the same bellhousing bolt pattern as a V8.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Feb 2017 Posts: 83 Vintage Truck & Tractor | | Vintage Truck & Tractor Joined: Feb 2017 Posts: 83 | Ok, that clears things up alot. Thanks for the info.
Current project; 1961 C20, 235 I6
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