Mopar Chrysler BB 383 440 Freeze Plug Kit The Speedmaster block is ready

The Speedmaster block is ready for the street racer or all-out racer with added strength and cubic inches

Speedmaster pumps draw just 5

Impala and Buick Roadmaster

Speedmaster TDS stepped up and created a full line of super-strong forged and billet yokes

best of all

Mopar Chrysler BB 383 440 Freeze Plug Kit The Speedmaster block is readySpeedmaster freeze plugs will not rot out, like lower cost steel ones. Your new engine assembly deserves the best. Don't get stuck trying to replace a leaking steel freeze plug behind a motor mount a year or two from now! These kits include all of the necessary external block freeze plugs, and cam and oil galley plugs for one complete engine.