Machine Shop Services

Butler Performance operates a fully equipped Pontiac-specific machine shop in Lawrenceburg, Tennessee. Our facility centers on a Haas UMC-750P 5-axis CNC machining center — the same technology used in aerospace and high-end motorsport manufacturing — supported by conventional engine machining equipment operated by experienced Pontiac specialists.

Block Services

• Hot tanking and cleaning
• Magna-flux crack inspection
• Boring to size (all Pontiac bore sizes)
• Honing to specified finish (plateau hone available)
• Deck resurfacing and squaring
• Main align-boring and honing
• Cam bearing replacement
• Freeze plug replacement
• Oil gallery cleaning and plugging

Head Services

• Valve job (three-angle, five-angle, or radius)
• Seat cutting and installation
• Guide replacement or knurling
• Combustion chamber equalization
• Surface resurfacing
• Port matching
• CNC port work (Haas UMC-750P)

CNC Machining

Our Haas UMC-750P handles precision operations that simply aren't possible with conventional equipment:

• 5-axis port work for maximum flow
• Precision combustion chamber machining
• Custom fabrication and one-off parts
• Intake manifold porting and matching

Balancing

• Rotating assembly balancing (internal and external)
• Harmonic damper inspection and replacement
• Flywheel/flexplate balancing

For a machine shop services quote, call us at (931) 829-2200 or contact us.