33-6013-5 | 1.640" OD | .030" HP Valve Spring Insert

QualFast HP Valve Spring Inserts have heat-retarding serrations with a blue tint, indicating heat treatment. Priced per piece.

OD: 1.640" | ID: 0.635" | Thickness: .030"

Applications: Chev., Chrysler, Ford w/ Remachined Guide