6.5 turbo diesel - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blazerboy72 · 03-31-2002, 07:09 PM

i am thinking about buying a truck with a 6.5 turbo diesel. I NEED HELP!!! Are these things any good. I have heard different stories. people say some of the gm diesels aren't any good but is this the one?

O'l Buck · 03-31-2002, 08:44 PM

I haven't been around alot of the 6.5's, but I did like the 6.2, they made pretty good power, a turbo helped some, always cracked heads, but rarely gave problems with water leakage or burnt valves, at least the 3 I had. The only 6.5 I ever had apart was out of a burned up pickup, the heads weighed quite a bit less than the 6.2, and were cracked with only 12,000 miles on the pickup. The rest of the block looked to be pretty much the same as the 6.2.

------------------
'72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

67 Cutlass convertible
330, 3spd stick

90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

Longhorn Man · 03-31-2002, 10:23 PM

For the best part, the 6.5 is the same as the 6.2. The 6.5 is externally ballanced, and the 6.2 internally, if I remember correctly.
They are both pretty crappy for diesels...don't last like they should, and don' make the gobs of torque they should either.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

03-31-2002, 07:09 PM	#1
blazerboy72 Senior Member Join Date: Mar 2002 Location: Temple, Ga Posts: 854	6.5 turbo diesel i am thinking about buying a truck with a 6.5 turbo diesel. I NEED HELP!!! Are these things any good. I have heard different stories. people say some of the gm diesels aren't any good but is this the one?

03-31-2002, 08:44 PM	#2
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	I haven't been around alot of the 6.5's, but I did like the 6.2, they made pretty good power, a turbo helped some, always cracked heads, but rarely gave problems with water leakage or burnt valves, at least the 3 I had. The only 6.5 I ever had apart was out of a burned up pickup, the heads weighed quite a bit less than the 6.2, and were cracked with only 12,000 miles on the pickup. The rest of the block looked to be pretty much the same as the 6.2. ------------------ '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s 67 Cutlass convertible 330, 3spd stick 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

03-31-2002, 10:23 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	For the best part, the 6.5 is the same as the 6.2. The 6.5 is externally ballanced, and the 6.2 internally, if I remember correctly. They are both pretty crappy for diesels...don't last like they should, and don' make the gobs of torque they should either. ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio



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