Re: Questions about a Gas to Diesel conversion for a '72
The bore is .090" bigger on the 6.5, but they share the same stroke. There's a lot of 6.2's that have been in place of 6.5's, and there's no real power difference.
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Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
The last 6.2s and first 6.5s share the same block casting. They are the same engine except bore. You can turbo a 6.2 with 6.5 parts or go to naturally aspired on a 6.5TD with 6.2 (or 6.5NA) parts. There were 6.5NAs offered for a short while,92+.
I mentioned the Isuzu diesel because I know of a conversion done in a square body several years ago. There was talk about using 4BTs,which are not made by GM and with the Duramax being the result of a GM/Isuzu partnership I don't see that it's that far off. Putting any diesel in a 67-72 is to gain some portion of benefit of economy,longativity,and/or power and a step away from keeping it original. We keep these trucks running with foreign made parts,even sold by GM,so...it's just a matter of where you want to draw the line. |
Re: Questions about a Gas to Diesel conversion for a '72
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There's a member here on the board that has an Isuzu in a Burb, but I don't remember his username. Those are good engines from what I hear.
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Re: Questions about a Gas to Diesel conversion for a '72
Is it necessary to remove the evaporator case to get that 6.2 in there? I see yours has been removed but realize that might have been just a preference thing.
That thing sure sounds good out that straight pipe. ;) |
Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
I think he's talking about the heater core, it's a tight fit. I took mine out when I put a 6.2 in my '68, but mine had been capped up and the heater controls ripped out by the PO, figured it was prob leaky anyway, and I wasn't to worried about it down here in southeast TX.
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Re: Questions about a Gas to Diesel conversion for a '72
1968CHEVYC10
How is your conversion coming along? And Youngen I was talking about the a/c evaporator/ heater case. If you look at 67C30's video you can see how close the engine is to the area where the case would be. |
Re: Questions about a Gas to Diesel conversion for a '72
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Oh also need to put some exhaust on... before the neighbors call the cops haha |
Re: Questions about a Gas to Diesel conversion for a '72
We'll all be curious about the performance and more importantly, fuel mileage with your setup.
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Re: Questions about a Gas to Diesel conversion for a '72
interesting.
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Re: Questions about a Gas to Diesel conversion for a '72
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A 6.2/6.5 fits fine in a 67-72, its the '93 - '99 6.5 turbo system that caused me to have to do away with the heater box. A 6.2 is dimensional smaller and lighter than a BBC, so they fit fine without the GM turbo system. Now you can a Banks turbo like I have for my miltary Blazer with the heater box, because it mounts low. Below is a N/A 6.2 in a '72 C-10 (with factory A/C box) and a video showing how the Banks kit mounts. This video as taking from the wrecked Suburban I bought to get the kit.
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Re: Questions about a Gas to Diesel conversion for a '72
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I fixed your post!:lol:;) |
Re: Questions about a Gas to Diesel conversion for a '72
hands down for diesel conversion.... 12v cummins....best of both worlds...checy looks, cummins power and 500-600hp on fuel with 20-25 mpg....all day. my buddy has one in his truck. 75 ford with twins making 700 hp and getting 35mpg.... also have a friend doing a cummins in a 70 c10
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Re: Questions about a Gas to Diesel conversion for a '72
The Cummins is a great motor. People still go with the GM diesel conversion in GMs because they bolt in and you can buy a lot of diesel with the money you save over the cost of a Cummins conversion. And that's stock. To get 700 hp really takes some fuel money out of your pocket. Hot rods are cool,but when it comes down to it what do you need all the HP for? 35mpg??? I don't think so.
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Re: Questions about a Gas to Diesel conversion for a '72
very true special K, I was thinking the hot rod route...get your point on the chevy diesel conversion... either way they would be nice rides
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Re: Questions about a Gas to Diesel conversion for a '72
6.2 will be an easy swamp. good mileage. but they have problems getting out of their own way. possibly a even better boat anchor
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Re: Questions about a Gas to Diesel conversion for a '72
Boat anchor? I'd like to see you pull one of these up out of the water and put it in the boat everytime you move :lol:
I got 275,000 out of my '84 w/Banks Sidewinder when I sold it to a friend who used it as a farm truck in the mountains (hauling hay wagons...you name it) for another 10 or so years. My '92 6.5TD that I sold the '84 to get has 281k on it and runs like a top. I enjoy the hard working truck as much now (if not more) as I did almost 20 years ago when I first got it. That's 556,000 miles from two trucks over 27 years. |
Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
All this talk makes my mouth water. Cant wait to get a cucv, do the swap, and enjoy 25 mpg with a 5 speed manual and a n/a 6.2 in my 71 c10.
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Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
Someday I'd like to body swap a longhorn onto a rolled or otherwise damaged regular cab dmax. They have the same wheelbase of 133" so I don't think it would be that hard. Imagine that engine performance, braking, trans, and ride quality with the longhorn body. wouldn't get much better than that for a capable hauler with a classic look. And you can actually leave the truck running while going through a drivethrough.
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