Powerhouse Products stud boss cutting tools include a universal arbor that also acts as a pilot/guide and fits into the original stud hole. When switching over your factory heads for screw-in studs, you need to machine down the stud boss equal to the thickness of the new stud's jam nut plus the guideplate thickness.

More From This Category

COMP Cams Stud Boss Cutting Tool, Steel, Carbide Tipped, Includes Arbor/Pilot, Each

COMP Cams Stud Boss Cutting Tool, Steel, Carbide Tipped, Includes Arbor/Pilot, Each

$321.51

Powerhouse Valve Spring Seat Cutter, 1.740 in. Diameter, Carbide Cutting Tip, Cuts Guide Size 0.630 in, Each

Powerhouse Valve Spring Seat Cutter, 1.740 in. Diameter, Carbide Cutting Tip, Cuts Guide Size 0.630 in, Each

$240.43

Powerhouse Cutting Tool, Arbor/Pilot for Cutters, 3/8 in. diameter, Arbor, Each

Powerhouse Cutting Tool, Arbor/Pilot for Cutters, 3/8 in. diameter, Arbor, Each

$79.81

COMP Cams Valve Spring Seat Cutter, Steel, 3/8 in. Arbor/Pilot, for Seat/Guide Cutters, Each

COMP Cams Valve Spring Seat Cutter, Steel, 3/8 in. Arbor/Pilot, for Seat/Guide Cutters, Each

$95.05

Powerhouse Valve Guide Cutting Tool, Steel, Carbide Tip, 0.530 in. Valve Guide Diameter, Each

Powerhouse Valve Guide Cutting Tool, Steel, Carbide Tip, 0.530 in. Valve Guide Diameter, Each

$134.22