Description

Seat Cutter – Valve Spring – M8

• Machine valve spring seats for proper installed spring height and spring cup fitment
• Hardened pilots fit all 3/8″ and 1/2″ hand drills
• Cutter bodies and pilots are interchangeable
• Cutter: Cuts spring seat 0.550″ ID x 1.180″ OD
• The M8 cylinder head material under the valve spring seat pocket to the top side of the exhaust port is fairly thin even more so on ported cylinder heads.
• Designed for M8 cylinder heads using high lift camshafts – see Feuling M8 valve springs kits part# 1107,1108,1207.