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They have injector bosses precisely positioned and machined for excellent fuel spray patterns and maximum power
Made from heavy-gauge metal with a silkscreen finish for long-lasting use
These camshafts are precision-ground from race-quality cores
Whether you're overhauling an engine or looking to upgrade your vehicle's performance
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.
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