Re: What causes cracked heads?
It DOES happen. Often? not really...They arent "known" to be terrible head cracking engines. It could be from many things including: poor metallurgy properties during the casting process. Not giving a proper warm up time. (Driving at higher RPM's under load will cause the combustion chamber area to heat up and expand but still have cold coolant surrounding the chamber in the water jacket which is acting against the heating process by trying to cool it, obviously, this causes stress in the cast. And it also plays hell on your head gaskets.) Too much load for too little truck, re: High EGT's.
Custom farming in NWIA.
-1985 Ford F250 reg. cab,blue w/ extra clearance lights,4x4,T19 4 gear,3.55's,Banks sidewinder w/ K&N, 3.5" straight pipe, 2 gauge pillar, and 3 below dash. Pioneer cd player & a pair of 12" RocFos subs shoved behind seat. Old school tuned Midland 23 channel CB w/ PA and 13 foot whip antenna, Solara DSC marine-band and 4 foot midland antenna hooked too a Delta diamond plate tool box, Aluminum rims,hide-a-ball, RoadMaster drop rear bumper,air gate, and stainless stick on's on the bottom body line.
-93 Ford F250 7.3L IDI Turbo Diesel, ATS upgrades, 4" exhaust and 5" stainless tip, 5 speed, 4wd, 3.55's, maroon on silver, American Racing rims, custom built air gate, DMI rear bumper, extra clearance lights.
-61 Ford Falcon Futura, 289HIPO, T10 4 speed, 9" rear w/ cleveland locker and 3.55's, linelok, Granada front discs.
Mosin Nagant's, K98's, K-31's, Enfields, AK's, and SKS's.