Chevy BBC 396 454 High Performance 12 Point Main Bolt Kit These Speedmaster expansion tanks are

These Speedmaster expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air

Speedmaster alternator brackets are designed to mount the alternator in several positions depending on your application

Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms

These bolts are forged from aerospace alloy and heat-treated prior to thread rolling and machining

If you're completing the installation of a Speedmaster electric water pump

Chevy BBC 396 454 High Performance 12 Point Main Bolt Kit These Speedmaster expansion tanks areSpeedmaster engine hardware are premium grade, race quality componets that are created from aircraft quality 8740 high tensile strength chromoly steel, withstanding up to 190,000 PSI . They are ground and thread rolled after heat treatment to ensure the exacting tolerances that Speedmaster requires for all of their fasteners. This ensures strength and consistent torque readings. All kits come complete with 4130 heat treated, parallel ground washers