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a 455 olds is a good m715 hi-torque cheap engine.

Any engine block that breaks in the main bearing area is junk imo

ITS the nature of a 4 b engine. there industrial engines that seen automotive uses. i have 15+ 4bt's and i dont want one in any of my m715,s. some folk swear by them but the only advantage is better fuel milage but you sure pay for them mpg,s. so wheres the advantage. also the fuel system is...

THIS IS A JOKE......" Mounting a 4Bt is easy ". HOW ABOUT ALL THE PLUMBING & COOLING , EXHAUST, CLUTCH LINKAGE, DIFF CLEARENCE, FUEL SYSTEM, AIR FILTER ASSY., BATTERY, THROTTLE LINKAGE, ELECTRIC WIPERS ON AND ON IT GOES........ AND BY THE WAY A 6.2 IS A JUNK ENGINE. ITS WHY THEY WENT TO 6.5. DO...