Speedmaster Pontiac 400 455 72cc Head Build Kit Hydraulic Flat Tappet 1-250-046-01

The Speedmaster Pontiac 400 455 72cc Head Build Kit (MPN 1-250-046-01) is a complete hydraulic flat tappet head assembly solution designed for Pontiac engine rebuilds and performance applications. This 72cc displacement kit delivers the components needed for proper head construction on classic Pontiac 400 and 455 cubic-inch engines, with hydraulic flat tappet valve train technology for reliable valve actuation and durability.

This head build kit is ideal for engine restoration, rebuilding, and performance projects where OEM-spec Pontiac engine components are required. The hydraulic flat tappet design ensures consistent valve lash adjustment and reduced mechanical complexity compared to solid lifter systems. Speedmaster manufactures this kit to support both street and classic car applications, making it suitable for Pontiac muscle cars, hot rods, and restoration enthusiasts looking for direct-fit compatibility with 400 and 455 block configurations.

Key Features & Benefits

• 72cc Displacement: Optimized chamber size matched to Pontiac 400 and 455 engine specifications.
• Hydraulic Flat Tappet Design: Provides automatic valve lash adjustment for reliable, low-maintenance valve train operation.
• Complete Build Kit: Supplies essential head components for assembly and installation on compatible Pontiac blocks.
• OEM-Spec Compatibility: Engineered to work directly with Pontiac 400 and 455 cubic-inch engine platforms.

Specifications

Ideal Applications

• Pontiac 400 and 455 engine rebuilds and restoration
• Classic muscle car engine assembly and performance upgrades
• Hot rod and custom car engine construction
• OEM-spec engine restorations for Pontiac vehicles