6.4 powerstroke ? - Chevy and GMC Duramax Diesel Forum
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post #1 of 196 (permalink) Old 11-20-2012, 09:57 AM Thread Starter
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6.4 powerstroke ?

My dad is looking ar a couple 08 & 09 4x4 f250 6.4 . He knows of the issues with the 6.0 but wants to know if the 6.4 have many Issues? Thanks for any advice or help

2015 highcountry
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2005 LT
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post #2 of 196 (permalink) Old 11-20-2012, 10:17 AM
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6.4s are pretty good pickups. Just delete the dpf and you'll be good!

2009 CCSB LMM-Robs tunes, insight, exhaust, ad2, krytonite stg 3, alpine, sundowns. Some other stuff
Props to ADP ATP MPF Husker Diesel and DMAXSTORE SOLD

2005 ECSB LLY-HDP tuned and built gmax 5, supporting mods-SOLD

2007 CCSB LBZ-Ridgerunner tunes, exhaust, HSP egr delete, 22x10.5 BMF Novas, Pioneer, etc
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post #3 of 196 (permalink) Old 12-06-2012, 12:09 AM
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Yup, the DPF needs to go ASAP. They also do well with a EGR delete.
Once that's done, the 6.4 is pretty solid.

It's fairly common to put down 580-590RWHP with just a H&S hot damn tune, DPF free exhaust and a upgraded Intake....on a Stock trans!


Si Vis Pacem, Para bellum !!!!
07' Chevy Silverado HD
--CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod)
--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
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post #4 of 196 (permalink) Old 12-06-2012, 03:02 AM
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Not bad trucks at all, just need to be sure the previous owner kept up with the service bulletins...
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post #5 of 196 (permalink) Old 12-06-2012, 05:21 AM
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they still blow headgaskets. go a head and put the big tune on, but save your money for studs. also the long blocks won't last near as long as say a cummins or duramax. they have lifter problems in the heads, their ring gaps are "loose" allowing for alot of blow-by and even problems with "making oil" , fuel in the oil. also have problems with cracking pistons.

07 lbz ccsb
EPR s475 o/stock, floor-it stg II cp3, Kory tuned, suncoast, tow-flows, Y bridge, insight, EXAXT,
cognito uca's, trac bars, AD II 165, banks IC, blacked out grill, cowl hood, tough country bumpers
Dyno - 582hp 1209tq - SJD, 561hp 1247tq floor-it-diesel (stock turbo & inj.)
Track - 12.82 @ 105.5 mph @7300lbs 1.82 60 ft

07 lbz rclb

Kory tuned, RDL egr delete, banks IC, insight,
bd lift pump w/remote WS, nicktane, ranch hand front
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post #6 of 196 (permalink) Old 12-06-2012, 06:22 AM
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I still can't believe that they have powdered metal connecting rods...
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post #7 of 196 (permalink) Old 12-06-2012, 09:48 PM
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I've heard they have weak push rods as well

Plugged, Rerouted, Blocked, PPE Mod, DE 5 inch, DE 3inch DP, EFI Live DSP-5 by IDAHO ROB, Insight, Raptor 150,
Transgo Jr, Nicktane, PROEFX Steel Roll Pan, XD Revolvers -24 Offset 20x10 w/ 305/50 Nitto 420s, Alligator Sleeves,
Belltech 3inch drop shackles, T Bar bolts all the way out, DDM Tuning 6000k Low/3000k Fog, and about 50lbs of Zipties
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post #8 of 196 (permalink) Old 12-06-2012, 09:55 PM
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I'd watch out for the "job one" 2008 trucks if you can.

They look and run badass if you dump about 2 grand into one. I'd rock a KR 6.4 if I felt comfortable with reliability long term.

LBZ Crew - EFI - MBRP - Profab - Airdog
Raptor lined rockers and flares by me
my "build" thread
Raptor color match thread
ATP Trucks
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post #9 of 196 (permalink) Old 12-06-2012, 09:55 PM
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front crank seals leaking, cooling system leaks are common, egr coolers blowing, injector bodies craking causeing fuel in oil (just like an lb7) bedplate leaking oil, h/p fuel pump leaking fuel into the crankcase (cab has to come off for that job) up-pipe bellows cracking causing turbo lag, ive replaced around 15 short blocks due to cylinder washout causing major gouging in the cylinder walls

would you like to hear more?

2005 CCSB Silverado 2500 HD LLY
Performance: LBZ Mac performance intake, LBZ mouthpiece, MBRP duals, shim kit, ported fuel rail fittings, headstuds, FASS150, FASS fuel filter delete bowl, LBZ FPR, EFI live by Idaho Rob
Air Flow:finger vanes, ported turbine housing, BatMoWheel, losend unison ring, ported exhaust manifolds, gasket matched up-pipes
Exterior: Rear Reunel bumper, leveled tow mirrors, HIDs (all on mod), ADP tie-rod sleeves, green tinted headlamp housings
Interior: 2 12" memphis car audio subs, custom sealed box and 2000 watt memphis amp, LED interior, dash and door lights-green, cobalt autometer pyro and boost piller gauges
Best Time: 13.92 @ 95 mph 1.96 60 foot
Work In Progress: 1969 Chevy Nova, built turbo 350, 283ci small block est. 550hp with 7500 rpm redline, caltracs, 4.11 ford 9" rear end, dual 3"exhaust

Last edited by chevylovinfordtech; 12-06-2012 at 09:58 PM.
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post #10 of 196 (permalink) Old 12-06-2012, 09:56 PM
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Buddies 6.4 was a fast truck with the deletes and sparton tuner in it , then engine went "boom"

2008 GMC Dually LMM
6" lift 285/75R17 "E" TOYO M/T
Banks intake/DPFdelete with MBRP exhaust
PPE Hot Race tuner / TransGo Jr. / Pillar gauges
JVC - DVD/Nav system & Back up camera/2500w inverter/ 55w reverse lamps/Amber strobe lights X4 corners
front hidden hitch/rear hitch/turn over ball 5th wheel hitch/custom grille
DRW # 101
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