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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Powerhouse Spring Seat Cutter for 1.580 OD.

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Powerhouse Spring Seat Cutter for 1.440 OD

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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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