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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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

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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

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Powerhouse Valve Spring Seat Cutter, 1.550 in. Diameter, Carbide Cutting Tip, Cuts Guide Size 0.630 in., Each

Powerhouse Valve Spring Seat Cutter, 1.550 in. Diameter, Carbide Cutting Tip, Cuts Guide Size 0.630 in., Each

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