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Old 02-05-2023, 09:38 AM   #1
65truckowner
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230 or 350

I have a 66 c10 I am wanting to restore. I want to leave the 3 speed in it and have a 230 and a 350. Which engine should I use? I will sell the truck after I get it done but will drive and enjoy it some before that.
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Old 02-05-2023, 10:13 AM   #2
Accelo
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Re: 230 or 350

In the aggregate the truck will be worth more, when you resell it, with the 350 in it.
If the motor will be rebuilt, the cost for rebuilding each motor will be close to the same if there is a difference the 350 will be slightly less money. I wouldn't worry about the transmission, three on the tree, holding up. They are tough enough for a 350 with a reasonable driver.
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Old 02-06-2023, 10:52 AM   #3
65truckowner
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Quote:
Originally Posted by Accelo View Post
In the aggregate the truck will be worth more, when you resell it, with the 350 in it.
If the motor will be rebuilt, the cost for rebuilding each motor will be close to the same if there is a difference the 350 will be slightly less money. I wouldn't worry about the transmission, three on the tree, holding up. They are tough enough for a 350 with a reasonable driver.
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Old 02-06-2023, 12:43 PM   #4
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Re: 230 or 350

Quote:
Originally Posted by Accelo View Post
In the aggregate the truck will be worth more, when you resell it, with the 350 in it.
If the motor will be rebuilt, the cost for rebuilding each motor will be close to the same if there is a difference the 350 will be slightly less money. I wouldn't worry about the transmission, three on the tree, holding up. They are tough enough for a 350 with a reasonable driver.
This statement is subjective. I've scattered more than one OG 3spd behind a 300hp sbc.

Yes, they can & do work fine under light load/acceleration. But, in my experience if there's enough traction & you mat the gas pedal, some 3spds will not be up to the task of surviving the resulting load. In my scenarios, two suffered catastrophic failures taking the internal gears, clutch set-up, & bellhousing along for the carnage ride. Both of these failures occurred when accelerating while rolling & not after dumping the clutch.
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Old 02-06-2023, 10:53 AM   #5
65truckowner
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Re: 230 or 350

I am going to pull the head of the 6 and see it’s condition then make up my mind
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Old 02-07-2023, 08:34 PM   #6
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Re: 230 or 350

A light duty driveshsft/ carrier bearing set up is easy to break with a 350 too
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