Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

6.5 van vs truck whats diff

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Old Apr 17, 2012 | 05:31 PM
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Question 6.5 van vs truck whats diff

I have a van 6.5 and i want to put it in my truck ,van 2000, truck 1999 what ALL IS DIFFERENT anyone???
 
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Old Apr 17, 2012 | 08:13 PM
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What makes you think anything is different ? My guess would be the usual van stuff, oil filler, dipstick, etc.
 
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Old Apr 17, 2012 | 08:51 PM
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well i was told the heads intake and exhaust were different i did not know
 
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Old Apr 17, 2012 | 09:14 PM
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Originally Posted by wolf1365
well i was told the heads intake and exhaust were different i did not know
They may be but I wouldn't think so, I guess we will have to wait for somebody who knows for sure to chime in
 
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Old Apr 17, 2012 | 09:41 PM
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The angle on the heads where the intake manifold bolts is different.
 
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Old Apr 17, 2012 | 09:48 PM
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Originally Posted by 2MuchJunk
The angle on the heads where the intake manifold bolts is different.
So will the Van motor work in his truck without changing heads ? I'm assuming they were different for clearance reasons ?
 
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Old Apr 18, 2012 | 08:58 PM
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well sooner or later i will know , probably when im up to my arm pits in it
 
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Old Apr 18, 2012 | 10:06 PM
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Changing the heads is the most common way. The van has the turbo mounted in the center .
 
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Old Apr 19, 2012 | 05:51 PM
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Arn't the heads usually the problem ?
 
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Old Apr 19, 2012 | 07:23 PM
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Van heads have different angles on the intake mounting bolts.

Van 6.5's are center mount and the exhaust won't fit in the GMT400 Chassis without firewall modification.

Center mount turbo's have oil return lines in the valley, need to be blocked off.

Few other little bits I'm probably forgetting (like the turbo oil return adapter where the mechanical fuel pump used to live once upon a time).

Easiest solution:

Pull the heads off the turbo engine and swap it all over to the van block.


Exception:

IIRC, if the van is NA I think the intake bolt holes are the same angle as the turbo heads and will work "as is".

If you go this route, make sure your turbo fuel injectors fit the van heads before you get too deep into it....
 
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