Compression Ignition Addict
Join Date: Jul 2008
Location: Brecksville, OH
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--The stock set blew at 40,000 miles using a small tow tune with VGT brake towing about 6000lbs. No machine work, used ARP's and torqued to 250lbs with the old lube and OEM gaskets. (lasted 20,000)
--The above set blew at 60,000 miles while ripping down the highway. Extreme race tune and 03 Turbo. Heads had a .018" twist in them. Purchased new OEM heads with gaskets. I reused the studs and torqued to 250 with the new lube. (lasted 27,000)
--The above set blew at 87,000 miles but only slightly. I used OEM gaskets and bought new ARP's. I prepped the heads and block with a flat board and 220 grit sand paper but no machining. Judging from the OE heads and others I would think that the heads are warped. I torqued the ARP's to 235 and then drove the truck for 150 easy miles and multiple heat cycles. I disassembled and retorqued the studs. I was able to get movement out of maybe half of them... I know have 106,000 and they are not leaking. I have since upgraded to 190/100's and a 68mm powermax so we'll see. (still holding at 19,000 miles)
Just a little back ground... I initially spent alot of time at the drag strip but that turned to tug a truck and sled pulls. The truck has roughly has 60-90 hooks on it.
Thinking that the re-torque works, I now re-torque all of the ones I do but only let it sit 24 hours. If I do mine again, I will re-torque them much the same way. I have heard of people pumping hot water through the engine to heat cycle it without actually running the motor. (that sounds like a hot setup!)
Here are a couple pictures from the last failure.
06 F250 Reg Cab. ARP's, RCD Billet Powermax, Warren 190/100's, Areo A1000 Pump, Driven Diesel Reg Return, All AN Lines from the sump, Intake and Exhaust, 4" BDS Lift, Long Arm 4-Link, Dana 80 swap, 1480 u-joints, 4"/.108 driveline, Detroit Lockers (both axles), Warren Trans w/ Billet Shafts, Drive Flanges, 35"s, Traction Bars, Front Suspension Stops(For Tug-A-Truck), Rear Suspension Stops, Custom Hitch, Roll Pan, Lots of Drive Shafts, Axles, and Pinions.