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Discussion Starter · #1 ·
What is the exhaust manifold bolt part number for a 4BT with the low mount rear exhaust turbocharger? I'm looking for the part number for the four rear bolts which are longer than the front four bolts.

Thanks,

James
 

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Are you looking for the turbo to manifold studs,or manifold to head ?
The manifold to head are # 3901448 M 10x1.50x65.


CrewCrew59
 

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Discussion Starter · #3 ·
I'm looking for the manifold to head bolts. On the low turbo application they are longer than the 65 MM bolts.

Thanks,

James
 

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Please show a picture of your exhaust manifold. I have both the low-mount, rear (not tilted) and high-mount, center. Both of them use 65mm bolts in all eight positions.
 

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I have 8 exhaust manifolds and they use the same bolts,from low rear,front high,mid center,and 6b's as well ,and even the two 4bt that are on the shop floor have the same bolts.
Might post a pics with the 65m bolt where your talking about !

CrewCab59
 

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Mine is a low mount GM step van application. All the bolts are the same length also.
 
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