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Performance Intakes, Carbs, Heads & More!
Performance Transmissions, Drivetrain & More!
Leader in Fuel Injection, Ignition & More!
Plumbing: Advanced Fluid Transfer Systems!
Performance Crankshafts, Valve Train & More!
Cuts cylinder head spring seats to 1.320" diameter / Cuts to .630" inner diameter
For installing larger springs & hardened spring seats on GM Vortec heads
Requires the use of an arbor/pilot, which are available for 5/16", 11/32" & 3/8" valve stem sizes
