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Dart Big 'M' Blocks |
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The DART cast-iron Big ‘M’ Big Block
is a no-compromise design that solves the problems that have
plagued Big Block racers for years. DART has redesigned the
lubrication system to create a true “priority main” system
that oils all of the main bearings before the lifters for extra
reliability. The stepped main oil gallery increases the flow of
oil to the crank at high rpm and the front oil crossover
eliminates internal oil leaks around the distributor shaft. The
result: more oil at the bearings and pushrods where it’s needed,
and less power-robbing crankcase windage. Big Blocks are also
prone to head gasket failure in the long spans between head bolts.
DART has added two head stud bosses on both sides of the lifter
valley to take the place of the “missing” head bolts.
The DART Big ‘M’ is engineered to be the strongest, most reliable and easiest to build big block on the market. |
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