Pac Racing Springs PACPAC-1904-16 Valve Springs - HR Series (16)

Pac Racing Springs PACPAC-1904-16 Valve Springs - HR Series (16) is listed by Motorstate as a Valve Springs for catalog matching by brand, part number, and product name. Use this source-backed listing when comparing Pac Racing Springs components in the Valve Springs category. The manufacturer part reference is PAC-1904-16, while the Motorstate part number is PACPAC-1904-16. Catalog description context: Valve Spring - Hot Rod Series - Dual Spring - 370 lb/in Spring Rate - 1.010 in Coil Bind - 1.290 in OD - Set of 16. No vehicle compatibility is stated here unless it is present in separate fitment data.