COMP Cams valve spring seat-cutting tools allow you to machine the cylinder head for the correct diameter valve spring. This will allow you to install larger springs and hardened spring seats. They will require the use of an arbor/pilot (sold separately).

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COMP Cams Valve Spring Seat Cutter, Steel, 11/32 in. Arbor/Pilot, for Seat/Guide Cutters, Each

COMP Cams Valve Spring Seat Cutter, Steel, 11/32 in. Arbor/Pilot, for Seat/Guide Cutters, Each

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COMP Cams Valve Spring Seat Cutter, Spring Seat Cutter, 1.580 in., Cuts Guide, 0.560 in.

COMP Cams Valve Spring Seat Cutter, Spring Seat Cutter, 1.580 in., Cuts Guide, 0.560 in.

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COMP Cams 7/16 in. Tapered Pushrod Cutting Bit

COMP Cams 7/16 in. Tapered Pushrod Cutting Bit

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COMP Cams Valve Guide Cutting Tool, Steel, Carbide Tipped, Cuts Guide .494 in. O.D., Each

COMP Cams Valve Guide Cutting Tool, Steel, Carbide Tipped, Cuts Guide .494 in. O.D., Each

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