70 C-20 4x4 Suburban Father/Son project
- Thread starter 1leglance
- Start date
Larry
Bigassgas Explorer
Man that is a drag! Sorry to hear that Lance. A later 6.5L block would probably be better if you can find one. The truck salvage yard I got to in Canon City probably has a half dozen 6.2/6.5L trucks in various stages of disarray. It would probably cost a fortune to pull one and have it shipped then you wouldn’t really know if it is any good or not until you opened it up.
On a happier note, you can now make your very own table like this…..
On a happier note, you can now make your very own table like this…..
Rot Box
Explorer
Hey I like this idea--now we're talkin! ^ :coffeedrink:
I recall reading about this issue a couple years ago. A friend of mine had a 6.5 that blew a headgasket and we took the motor out to do the repair. In the process we found lots of cracks and he decided to not fix it and sold the truck. In my research I found some info about a repair for the main cracks if they are not too deep.
Here is a thread about it on thedieselpage. That thread suggests that if the cracks do not extend past the bolt holes, it is possible to repair it.
I don't have any experience with it, but I thought it may be useful and something you had not heard of before.
Ryan
Here is a thread about it on thedieselpage. That thread suggests that if the cracks do not extend past the bolt holes, it is possible to repair it.
I don't have any experience with it, but I thought it may be useful and something you had not heard of before.
Ryan
1leglance
2007 Expedition Trophy Champion, Overland Certifie
Thanks for the thoughts guys...
Larry that is a cool table but not sure my wife would be cool with that around...she works at a machine shop and then puts up with me & the boys at home...inside the house is her domain.
A Ford motor in my Chevy...well I am not at that point yet even though I admit the 7.3 is a great engine.
The search is on for a 6.2 since I already had the injection pump rebuilt and the 700r4 is all rebuilt and waiting.
A complete motor would be nice but even a bare block would give me something to work with as I have my heads, pistons, crank and such.
Larry that is a cool table but not sure my wife would be cool with that around...she works at a machine shop and then puts up with me & the boys at home...inside the house is her domain.
A Ford motor in my Chevy...well I am not at that point yet even though I admit the 7.3 is a great engine.
The search is on for a 6.2 since I already had the injection pump rebuilt and the 700r4 is all rebuilt and waiting.
A complete motor would be nice but even a bare block would give me something to work with as I have my heads, pistons, crank and such.
chilliwak
Expedition Leader
Man that is a drag! Sorry to hear that Lance. A later 6.5L block would probably be better if you can find one. The truck salvage yard I got to in Canon City probably has a half dozen 6.2/6.5L trucks in various stages of disarray. It would probably cost a fortune to pull one and have it shipped then you wouldn’t really know if it is any good or not until you opened it up.
On a happier note, you can now make your very own table like this…..
Larry, that is probably the most beautiful :Wow1:table I have seen!:ylsmoke:
Larry
Bigassgas Explorer
Lance,
The 700R4 has the typical Chevrolet bell housing shape that fits all Chevrolet V8 engines (gas or diesel) from 1954 to today. Your freshly built 700R4 would bolt right onto your existing 350 with no problems. Worse case would be a different torque converter as I believe the diesel torque converter has a different stall speed, and even that may not be an issue. You could also resell the rebuilt injection pump to recoup your investment. TBI or even TPI parts are not hard to come by or expensive. My point is you are not committed to a 6.2L just cuz of the rebuilt trans and rebuilt injection pump. I’m just sayin!
98dango
Expedition Leader
Lance,
The 700R4 has the typical Chevrolet bell housing shape that fits all Chevrolet V8 engines (gas or diesel) from 1954 to today. Your freshly built 700R4 would bolt right onto your existing 350 with no problems. Worse case would be a different torque converter as I believe the diesel torque converter has a different stall speed, and even that may not be an issue. You could also resell the rebuilt injection pump to recoup your investment. TBI or even TPI parts are not hard to come by or expensive. My point is you are not committed to a 6.2L just cuz of the rebuilt trans and rebuilt injection pump. I'm just sayin!
Having swapped a 6.2 in favor of a 5.7 gas get a gas converter. The stall speed on a 6.2 is 400-600 and gas is 800-1200 makes it very hard to stop as the trans is always pulling. My mother was not at all happy till I changed the converter. Also she noted the same mpg with the 350 as did with the 6.2. In her driving 3.08 gears od and 31s netted her 18 mpg the exact same she got with the 6.2. Less owner ship cost the swap was done due to the #3 main cap falling out of the 6.2 and i had a fresh 350 for my blazer and well mom comes first.
Larry
Bigassgas Explorer
Lance,
I was just thinking, we built several thousand post office and Frito-Lay trucks with the naturally aspirated AM General (General Engine Products) built J code 6.5L engines years ago and on the occasion we had a catastrophic engine failure while the vehicle was in warranty the engines we used were hybrid remanufactured engines being that the block was a new GEP block with reman heads, crank, rods, etc. GEP took the position that the 6.5L was not a rebuildable engine. There might be reasons for them taking that stance. I wouldn’t think the 6.2L would be any different. While I am sure there are some rebuilders willing to rebuild a 6.2/6.5, if the OEM that manufacturers the new version of that engine doesn’t think it is a good idea gives food for thought. Hmmm….
I was just thinking, we built several thousand post office and Frito-Lay trucks with the naturally aspirated AM General (General Engine Products) built J code 6.5L engines years ago and on the occasion we had a catastrophic engine failure while the vehicle was in warranty the engines we used were hybrid remanufactured engines being that the block was a new GEP block with reman heads, crank, rods, etc. GEP took the position that the 6.5L was not a rebuildable engine. There might be reasons for them taking that stance. I wouldn’t think the 6.2L would be any different. While I am sure there are some rebuilders willing to rebuild a 6.2/6.5, if the OEM that manufacturers the new version of that engine doesn’t think it is a good idea gives food for thought. Hmmm….
Larry
Bigassgas Explorer
Very true. The 6.2/6.5L is basically built on the big block Chevy engine architecture (not the same exact block as a BBC but the same architecture). While there is nothing wrong with that, that design and manufacturing process shows its limitations with extremely high compression ratios and normal vibration harmonics of a diesel. USPO and FL purchased these as they were a low cost alternative to other available diesel engines at the time.
ExpoMike
Well-known member
Yes! but I might be a little bias.
Bummer to hear about the 6.2. Not an uncommon problem and it has been talked about that this issue occurs more due to the harmonics of the engine design and a Fluidamper balancer greatly decreases this issue. Ideally a P400 block or a 6500 Optimizer is the way to go. The P400 has ALL the trick parts but is $$$.
As for the 700R4, the converter and the governor have to be changed between a diesel and gas engines.