Join Date: Sep 2006
Location: Las Vegas, Nevada
Why do the 3.8's have such a problem with blowing head gaskets?
Combination of poor gasket material and bi-metal erosion. The 96/97's got multi-layered steel head gaskets instead of the composite paper gaskets that the 89-95's had. However sources claim that they are all prone to erosion due to electrolysis caused by broken down coolant carrying a positive charge, basically unavoidable due to aluminum heads on an iron block. As stated MLS gaskets are better equipped to handle the difference in expanding and contracting between to unlike metals. Obviously all bets are off as soon as the engine is overheated in either case or with electrolysis or rust caused by improperly maintained coolant or a defective cooling system.
-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
Amber_Murder's Daily Driver.
-2005 White GMC Sierra 3500 6.6 Duramax, Dually, 4-door, 4x4, Limo Tint, BFG Commercial T/A's, Rancho RS9000XL Shocks, Kenwood Double Din, K&N Intake, Banks Monster Exhaust
Chris_Murder's Daily Driver.