Machine valve spring seats for proper installed spring height and spring cup fitment. Cutter bodies and pilots are interchangeable, Hardened pilots fit all 3/8” and ½” hand drills.

I.D. x O.D.
Part # 9020 Cutter $109.95 .625” x 1.570”
Part # 9021 Cutter $109.95 .625” x 1.635”
Part # 9022 Cutter $109.95 .625” x 1.750”

Part # 9025 Pilot $39.95 5/16” – 8mm EVO & T/C up to 2004, EVO Sportster ’86-up
Part # 9026 Pilot $39.95 7mm T/C 2005 and newer
Part # 9027 Pilot $39.95 3/8” Pan & Shovel Head 1948 - 1984

Part# 9020 $109.95 | Cutter | add item to cart

Part# 9021 $109.95 | Cutter | add item to cart

Part# 9022 $109.95 | Cutter | add item to cart

Part# 9025 $39.95 | Pilot | add item to cart

Part# 9026 $39.95 | Pilot | add item to cart

Part# 9027 $39.95 | Pilot | add item to cart

Valve Spring Height Gauge

Measure installed valve spring height. Place tool on cylinder head in place of valve spring with spring cup and retainer in place, twist measuring tool to get accurate spring height measurement.

Part # 9030 $169.95

Part# 9030 $169.95 | Valve Spring Height | add item to cart