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our Speedmaster aluminum fuel cells offer superior strength in a lightweight package
and designed with a 10 degree taper
The Speedmaster shift selector shaft uses an O-ring to prevent leakage from GM TH400 cases
The kits include five modules in 200 rpm increments
They require a 3/8 in
H Beam 6.385" 2.200" .990" 4340 Connecting Rods Chevy BBC 454 w/ ARP 8740 our Speedmaster aluminum fuel cellsSpeedmaster H beam connecting rods are one of the strongest connecting rods available. Speedmaster H beam connecting rods are perfect for supercharged and nitrous applications. These rods incorporate a special doweled cap for specific cap to rod alignment and are profiled with extra clearance for stroker applications.
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