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Powerhouse Products GM LS Retrofit Valve Spring Seat/Guide Cutters Allow LS-Style Valve Springs

Powerhouse Products GM LS Valve Spring Seat Guide CuttersGM LS Retrofit Spring Seat Cutters allow the use of LS-style valve springs on traditional Small Block Chevrolet cylinder heads.

A popular upgrade to allow more lift or accommodate a more aggressive roller camshaft when using traditional Small Block Chevrolet heads is to retrofit them with LS-style valve springs. This tool will allow customers to machine their cylinder heads for the correct diameter valve spring. Two versions are offered, a 1.340″ seat cutter for 0.500″ guides and a 1.340″ seat cutter for 0.560″ guides. The durable carbide cutting tip material ensures precision and accuracy. The cutter requires the use of an arbor pilot, which is available in four different sizes.

Quick Facts

Product: Powerhouse Products GM LS Retrofit Valve Spring Seat/ Guide Cutters

Part Number: #4671 (1.340″ cutter for 0.500″ guide); #4672 (1.340″ cutter for 0.560″ guide)

Street Price:  $67.78

 Social Media Pitch: Powerhouse Products GM LS Retrofit Valve Spring Seat/ Guide Cutters allows LS-style springs to be used on traditional SBC heads

 Features & Benefits:

  • Allow LS-style springs in SBC heads
  • Carbide cutting tip
  • 340″ seat cutter for 0.500″ guide
  • 340″ seat cutter for 0.560″ guide

View the PDF: Powerhouse Products GM LS Retrofit Valve Spring Seat/Guide Cutters Allow LS-Style Valve Springs