ARP camshaft bolt for 4.6L and 5.4L engines.

• Thread size M10x1.5
• 18mm socket size
• 200,000 psi tesile strength

NOTE: DOHC Engines will require 4 Bolts for Cams. SOHC Engines will require 2 Bolts for Cams. Fits DOHC with STOCK cams only, for DOHC Motors with aftermarket cams use part# 256-1001.

ARP camshaft bolt for 4.6L and 5.4L engines.

• Thread size M12x1.5
• 18mm socket size
• 200,000 psi tesile strength

NOTE: DOHC Engines will require 4 Bolts for Cams. SOHC Engines will require 2 Bolts for Cams. Fits DOHC with AFTERMARKET cams only, for DOHC Motors with stock cams use part# 256-1002.

ARP 4.6L 2 & 4 Valve Cylinder Head Studs- (Hex Nuts)

Stock bolts and gaskets are OK for stock cars. But with high performance engines you want something better. Why take a chance on your new cylinder heads with cheap, mass produced bolts. Go with the best. Go with ARP.

Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs are available with hex or 12-point nuts. These head studs are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.