ProMaxx Aluminum Cylinder Head 18MM

Starting with the bare casting, each head is manufactured from ultra-smooth 356 T-6 aluminum, the same proven material used in ProMaxx's famous racing heads. With multiple strength and design upgrades, these aluminum cylinder heads are solid behind the injector cups, have hardened seats and guides, and also have the strongest injector hold-down boss available.

Sold individually as a complete cylinder head with valves, valve seals, springs, retainers, and locks. This is a brand new casting with no core charge. 1 year warranty.

Features:

• For 18mm Dowels
• Mutl-Angle Valve Job
• 25% Increased Air Flow
• Machined & Assembled In The USA!
• Sold Individually

Note: Model year ranges are suggested applications. Please confirm dowel size on your truck before ordering.