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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

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Old 02-27-2014, 05:01 PM   #1 (permalink)
woffis
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manifold nuts

Do anyone know what nut and stud size, thread in millimeter please
Betwen head and manifold and betwen turbo and manifold?

Thanks
Kristoffer

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Kristoffer
Dually club member no #1031

1994 Chevy K3500 4x4 Dually Crewcab longbed
6.5 Turbo diesel vin f NV4500
208 and 14 bff rear axle 3:73 gears
Pre and post LP filters Walbro FRC 10 and MRFSU parts from Leroy
6An(preassure) 4An(return) fuel lines from tank to IP

2,5" crossover 3" custom DP and 4" after DP
Tuning chip from Enghs motor (Swedish)
SB filters Cold air intake and snorkel removed
Stanadyne PMD w/#9 Re-Location Kit mounted behind the grille
HX40 WII and new injectors pop preasure 2400 psi

Pillar gauges Vacuum pump delete Fluiddampr
Whats next?
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Old 02-27-2014, 05:54 PM   #2 (permalink)
racer55
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Originally posted by 96GMC6.5L @TTS:

"Okay, I've got both my stock manifolds here, along with all the correct bolts and studs.
The bolts required are as follows:
Driver side
Six bolts, 10x1.5mm 64mm long
Two bolts, 10x1.5mm 45mm long

Passenger side
Three bolts, 10x1.5mm 64mm long
Five bolts with stud standoffs, 10x1.5mm 84mm long
The stand offs are 14mm long. the standoffs are the same 10x1.5 size as the bolts.

I measured the lengths with a digital vernier, so just get the length as close as you can.For example, 64mm bolts, are probably listed as 65mm

This is from chevyinline6 on the other site when he posted in my exhaust manifold thread.

Hope this helps"

Google is your friend!

Dimensions aren't given but SS Diesel shows replacement turbo studs available.

The exhaust manifold studs hare specially designed by GM to maintain proper clamping force while letting the manifolds expand and contract,the threads are also specialy rolled-it's best to replace them with GM studs whenever possible.

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Last edited by racer55; 02-27-2014 at 05:55 PM.
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Old 02-27-2014, 06:18 PM   #3 (permalink)
bk95td
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I buy stainless steel bolts and threaded rod from Fastenal for less than half what GM wants for their low quality bolts. I haven't had a problem yet in over 5 years and on multiple trucks. No rust and they stay tight and look good.
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Old 02-28-2014, 02:58 AM   #4 (permalink)
woffis
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thanks alot!
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Kristoffer
Dually club member no #1031

1994 Chevy K3500 4x4 Dually Crewcab longbed
6.5 Turbo diesel vin f NV4500
208 and 14 bff rear axle 3:73 gears
Pre and post LP filters Walbro FRC 10 and MRFSU parts from Leroy
6An(preassure) 4An(return) fuel lines from tank to IP

2,5" crossover 3" custom DP and 4" after DP
Tuning chip from Enghs motor (Swedish)
SB filters Cold air intake and snorkel removed
Stanadyne PMD w/#9 Re-Location Kit mounted behind the grille
HX40 WII and new injectors pop preasure 2400 psi

Pillar gauges Vacuum pump delete Fluiddampr
Whats next?
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Old 02-28-2014, 03:10 AM   #5 (permalink)
Diaric
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Quote:
Originally Posted by racer55 View Post
Originally posted by 96GMC6.5L @TTS:

"Okay, I've got both my stock manifolds here, along with all the correct bolts and studs.
The bolts required are as follows:
Driver side
Six bolts, 10x1.5mm 64mm long
Two bolts, 10x1.5mm 45mm long

Passenger side
Three bolts, 10x1.5mm 64mm long
Five bolts with stud standoffs, 10x1.5mm 84mm long
The stand offs are 14mm long. the standoffs are the same 10x1.5 size as the bolts.

I measured the lengths with a digital vernier, so just get the length as close as you can.For example, 64mm bolts, are probably listed as 65mm

This is from chevyinline6 on the other site when he posted in my exhaust manifold thread.

Hope this helps"

Google is your friend!

Dimensions aren't given but SS Diesel shows replacement turbo studs available.

The exhaust manifold studs hare specially designed by GM to maintain proper clamping force while letting the manifolds expand and contract,the threads are also specialy rolled-it's best to replace them with GM studs whenever possible.

Added to the FAQ's so you don't have to search as hard next time.
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Quote:
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well to make your pump retarded, you could let it hang out with me for a day
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Diaric wins thread derailment......
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Originally Posted by High Sierra 2500 View Post
Yeah Diaric, I gotta say, I'm afraid I'm going to have to give you an official warning on that.
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