Heads are ported, bead blasted, flowed, and milled. Oversize stainless valves. Heads can be fitted with either single or dual springs. Single springs recommended for 280 and smaller cams. Dual for 306 and larger cams.

Includes:

• Ported and bead blasted
• 40mm stainless intake and 34mm exhaust valves
• Aluminum or titanium retainers
• Split keepers
• HD single or dual springs
• Valve spring shims
• 3-angle valve job
• Milled to specs

*Note: Rocker arms not included. Heads are typically built to order - allow 1-5 days to ship. Due to valve size, valve face will extend beyond surface of head if head is milled.
Valve-to-piston interference can be an issue with hemi heads and must be checked. Pistons may require notching.