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These small gears have a big impact on your engine's performance
The TorqueWorm is a torque bias
use Speedmaster cast iron cylinder heads
They have a minimum wall thickness of
valve stem seals
GM Turbo 400 TH400 Quick Spool Valve System These small gears have aThe Speedmaster quick spool system is a pressure relief system for the Turbo 400. This system dumps the converter outlet pressure, loosening the converter and helping spool the turbo quickly. This system can be wired directly to the transbrake wire. The quick spool system can be initiated via a switch, timer, or digital output signal.
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