Speedmaster Pontiac 400 455 72cc Head Build Kit Hydraulic Roller Tappet 1-250-048-01

The Speedmaster Pontiac 400 455 72cc Head Build Kit is a precision engine component designed for high-performance Pontiac 400 and 455 cubic-inch engine builds. This kit features a 72cc combustion chamber size and incorporates hydraulic roller tappet technology for improved valve actuation, reduced friction, and enhanced engine reliability. The hydraulic roller design provides automatic valve lash adjustment, eliminating the need for manual shimming and offering superior durability compared to mechanical valve trains.

This head build kit is engineered for builders and enthusiasts looking to maximize flow characteristics and compression efficiency in classic Pontiac engine applications. The 72cc chamber size balances performance potential with compatibility across the 400 and 455 displacement variants. The kit delivers consistent valve timing and lift characteristics through its hydraulic roller tappet system, making it suitable for street performance, restoration projects, and engine rebuilds where reliability and ease of setup are priorities.

Key Features & Benefits

• Pontiac 400/455 Compatibility: Engineered specifically for Pontiac 400 and 455 cubic-inch engine blocks.
• 72cc Combustion Chamber: Optimized chamber size for improved compression and performance characteristics.
• Hydraulic Roller Tappets: Advanced valve actuation system with automatic lash adjustment and reduced mechanical wear.
• Complete Build Kit: Includes all essential components needed for head assembly and installation.

Specifications

Ideal Applications

• Pontiac 400 and 455 engine rebuilds and performance upgrades
• Classic car restoration projects requiring modern hydraulic valve train technology
• High-performance street and strip engine assembly for Pontiac powerplants
• Engine refresh builds prioritizing reliability and ease of installation