4th gen Re-torque head bolts vs. Arp 425. poll and opinions. - Dodge Cummins Diesel Forum

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View Poll Results: 4th gen: Re-torque stock head bolts or upgrade to Arp 425
Re-torque Stock head bolts 3 13.04%
Arp 425 18 78.26%
Other head stud brand 2 8.70%
Multiple Choice Poll. Voters: 23. You may not vote on this poll

 
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post #1 of 3 (permalink) Old 11-07-2012, 12:04 PM Thread Starter
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4th gen Re-torque head bolts vs. Arp 425. poll and opinions.

Im new to the 6.7 but with my old 5.9 lots of members have been able to get away with just re-torquing stock head bolts to keep their head clamped in place and save premature HG failure. Is this still a common debate on the new 6.7? Am I able to re-torque stock head bolts to a tighter torque and hold my head? Truck mods are H&S mm, Dpf delete, and intake. I do NOT plan on upgrading turbo or injectors prob just intake horn and full egr delete later on. will stock bolts hold, and what torque should I use on them?


12 HO 3500 Laramie CCSB 68RFE 4:10 4x4 H&S mm, FP5" tbe, S&B cai
SOLD: 02 2500 47RE MBRP 4" STR8 pipe, Afe, S357/S475, ATS 3-piece, ARP, FASS 95/150, DDP 110s, Edge Juice + HOT, NADP full race
68 GMC (under const) lwb2swb, 2wd, 47re, 24valve, ppump, big sticks, big single batmowheel, 4/6 drop, 22s, 67 clip and box sides

I need more parts
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post #2 of 3 (permalink) Old 11-07-2012, 07:53 PM
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6.7s have higher cylinder pressures than 5.9s due to the bigger bore and longer stroke; and this can blow a HG. I would go with some ARP 425s. A lot of guys go with ARP 625s too.

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post #3 of 3 (permalink) Old 11-08-2012, 09:35 AM Thread Starter
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Right on, thanks for the info. I have mostly only read people are going with studs rather than just re-torquing bolts and now I know why. I will definitely have to invest in a set of studs.

12 HO 3500 Laramie CCSB 68RFE 4:10 4x4 H&S mm, FP5" tbe, S&B cai
SOLD: 02 2500 47RE MBRP 4" STR8 pipe, Afe, S357/S475, ATS 3-piece, ARP, FASS 95/150, DDP 110s, Edge Juice + HOT, NADP full race
68 GMC (under const) lwb2swb, 2wd, 47re, 24valve, ppump, big sticks, big single batmowheel, 4/6 drop, 22s, 67 clip and box sides

I need more parts
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