JIMS, HIGH PERFORMANCE VALVE SPRING SET. 184@1.850"

JIMS, high performance valve spring set. 184@1.850"

Seat load: 184@1.850". Open load: 422@1.280". Coil bind: 1.080". Rate lbs / inch: 425. Multiple parts valve spring set. Comes with an interference double spring design with damper that keeps the inner and outer springs from locking and reduces harmonic vibrations. Compatible with OEM upper and lower collars.

Fits: > 84-99 Evo B.T.; 99-04 Twin Cam; 86-03 XL (NU)