I Beam 6.385" 2.200" .990" 5140 Connecting Rods Chevy BBC 454 w/ ARP 2000 The Speedmaster shift selector shaft

The Speedmaster shift selector shaft is built with sturdy

The Speedmaster pinion supports are made from the best quality nodular iron

Adjusting the rear band is crucial for optimizing shift quality and transmission performance

These Speedmaster tailshaft housings are designed five times stronger and more ridged than stock because they are made from aircraft grade aluminum alloy

Easy--they combine an electric motor that is much stronger than a stock starter for serious torque

I Beam 6.385" 2.200" .990" 5140 Connecting Rods Chevy BBC 454 w/ ARP 2000 The Speedmaster shift selector shaftThese Speedmsater I beam connecting rods incorporate all of the best features possible for an I beam rod, including some strength adders found in H beam designs. Speedmaster I beam connecting rods are profiled with clearance for long stroke applications. These connecting rods feature a one rib cap design for added strength and bearing support, polished beams to eliminate stress risers.