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They have injector bosses precisely positioned and machined for excellent fuel spray patterns and maximum power
and increasing the cap's resistance to closing up under high loads
1966-83 trucks and Suburbans
If you want to run a roots style blower but you do not want a broken crank than you must employ this Speedmaster Billet Crank Support
Speedmaster Aluminum Roller Rockers are extruded from 6061 T6 Aluminum
Chevy BBC 454 6.385" 4.530" Bore 1.270" .990" Dome Top Forged Pistons They have injector bosses preciselySpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.
