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General Motors delivered four 2004-1/2 6.6-liter (402.6 cu. in.) LLY-Version Duramax turbodiesel V8 engines to Gale Banks Engineering for buildup into the Sidewinder D-Max series of vehicles. Banks engineers and engine builders spent enormous amounts of time creating full-flow oiling systems, lightweight valvetrains, special fuel pump drives, etc. Every aspect of the D-Max engines will be upgraded for the rigors of endurance racing.
More Photos: [1]
[2]
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Banks
engine builders performed a massive amount of
modifications to the 2004-1/2 6.6-liter (402.6
cu. in.) LLY-Version Duramax turbodiesel V8 engines
received from General Motors. Four Duramax LLY
engines are being fully race prepared, internally
balanced and blueprinted.
A
stock 2004-1/2 LLY Duramax manual-transmission
calibrated engine makes 310 bhp at 3000 rpm and
605 lb.-ft. at 1600 rpm. To run the modified
racing engines as fast as 5,000 rpm requires
advanced thinking, engineering and race preparation.
Diesels require very rugged (i.e. heavy) parts
to withstand the tremendous cylinder pressures
they develop. Such heavy-duty parts typically
limit Duramax engine speeds to a redline of 3200
rpm. Banks plans to increase both cylinder pressures
and engine speeds. To reach the projected power
levels and engine speeds, every part of the Duramax
engine will receive attention.
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