COMP Cams 1.350" Spring Seat Cutter 91609159 insulates your interior from road

insulates your interior from road noise and heat

9LSU wideband sensor and AEM X-Series Wideband UEGO AFR Gauge with 4

M6 Anchors

Replaceable Side Grip Plates

COMP Cams 1.350" Spring Seat Cutter 91609159 insulates your interior from roadMost high performance engines today require the use of larger than stock diameter valve springs. This 1. 350" Spring Seat Cutter for installing single springs on GM Vortec Heads without hardened spring seats will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor pilot, which are available in three different sizes. This valve seat cutter allows you to enlarge the cylinder