Jungle

I've read some where on here about re torquing the head to 125 lbs. I looked through the sticky & didn't see on this. Whats your feelings about this & whats the proper procedure?

The motor in question does or WILL have;
DDP 80 hp, 55 LPM injectors
3200 spring
S300 turbo
turned up injection pump
low pressure lift pump
3 piece pulse exhaust manifold
4" exhaust
bumped timing
& a lot of gauges


Thanks guys!!
Jim

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1992 CTD W250 I/C Low pressure lift pump, DDP 80 hp sticks, PS intercooler, 366 spring, 355 gears, 518.
My RC build; http://ramchargercentral.com/index.p...,117431.0.html

Free89W350

USE EXTREME CAUTION. I just tried this and snapped the bolt that goes through the #3 cylinder rocker pedestal. But others have had good luck doing this.

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Ryan

05 GMC Z71 Lifted

89 W350 RIP gone but not forgoten

Crew project kinda started

PADTR #15 Member

Other Rides

07 Ducati M695
65 Barracuda

Rick 12v CTD

before you torque them down you should check to see if they are stretched and replace any that are before torquing down so you don't have any breaking. I've also read that the torque should be 115 hot or 125 cold. Which is different than aftermarket studs which I think are 125 hot or 135 cold.
Or something like that...

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1991.5 W250 3.55 Auto CTD. DDP4, modified DennyT pin, 366, He351, lp plp, 4" ex./straight pipe, ASA intake/EAAU4091 filter
~ 251.4hp/562.5 tq corrected ~ (#1 fuel & bumped timing, no lp plp)
Borgeson shaft, Amsoil 5W-30 synth. w/ bypass.

RowJ

Factory studs? If so...leave them be!
Recently installed, different story.

RJ

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02, 2500, QCLB, 4x4, Auto, 3.55 Power-Lok LSD - DTT/Billet - Smarty/Pulsed Adrenaline - Mach 6's - BD Twins - O-Ring/Studs -Snow's H2O/Meth - FASS - F-1 Cam/Valve Springs - HTT Manifold - LazarSmith Traction Bars - 5" pipe - TC Lockup Switch - RAD - 3rd Gen Brakes - Fluidampr - DSS - 35x12.50x17 Pro Comp Xtreme A/T's (Best Dyno - 628 HP/1266 ft-Lbs)........ (Best 1/4 Mile - 12.72/105.64 - 7460 lbs)

92smokin blacky

yeah thats what i say, if they're factory, then i wouldn't mess with them. You must already have it broke in and have a good seal. I wouldn't risk breakin an 18 year old bolt thats seen a lot of heating and cooling. Just save up and buy some studs and O-ring it.

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Black 92 W250, LE, 3.54s, bone stock A518 auto, pump "tweaked", POD injectors, ATS Aurora 5000 turbo,a 5" flame/smoke thrower comin out of the hood, PS intercooler,Custom ACE grid delete and lots of other custom parts, 246,000 miles and rollin...runnin AMSOIL and love it
Jan 2010"TOM"
307hp with stock trans and HE351cw on 3/20/10...
cummin soon: 47rh swap, ARP head studs, Airdog II w/fuel sump, water/meth and 5000/HE351 twins in the future

jesussaves

whats oringing?

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"The bible banned, burned, beloved. More widely read, more frequently attacked than any other book in history. Generations of intellectuals have attempted to discredit it; dictators of every age have outlawed it and executed those who read it. Yet, soldiers carry it into battle believing it more powerful than their weapons. Fragments of it smuggled into solitary prison cells have transformed ruthless killers into gentle saints" C.S. Lewis 04 F250 FX4 12V in progress

Jungle

Sounds like a good plan! If it not broke don't fix it.
Thanks again guys!!
Jim

JQmile

Torque to 125 lb-ft cold, have spare bolts in case any snap or stretch (they'll turn way past the others (1/4 turn or more)) Torque with oil or assembly lube.

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1989 D250 2wd 14mm H/R New Era 6x16's, 3200 spring, Goerend converter, J&H Performance 727 trans, AirDog II, BHAF, 4-inch downpipe and exhaust, DennyT fuel pin, ported, o-ringed and ARP studded head, external wastegate, 62/65/14 S300 w/internal gate, two stage NX nitrous 514 rwhp.

big stinky

back the bolts out one at a time if your gonna retorque them... measure what it takes to loosen them... Tighten them back up to that, and go up from there once they are all cleaned/lubed. You want clean threads on both the bolt and in the block. Use lube. Mark the top of the bolts. If one turns more than the others, replace it.

Usually lots of crap gets into the head bolts (rust, soot, oil). Just tightening them is cutting your chances real close to snapping bolts and getting an uneven torque on the head.

Good luck.

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90 w350 DRW Getrag, 3.54s- 388hp-797lb/ft
1994 dodge 2500. 47rh.
1984 k5. 6" lift, 38s.
1979 Camaro. 11.31@122 Street trim.