FEULING ENDURANCE BEEHIVE valve springs allow up to .565 lift camshafts no spring seat machining required. Machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance.

Dont get stung by inferior valve springs!
Quicker Revving - Smoother Motion - Less Harmonics

FEULING BEEHIVE valve spring kits are each hand measured and labeled specifically based on their coil bind / required open height. Our kits require you to measure installed height and may require use of included shims. This is so you can set up the springs specifically to your camshaft lift for quieter and smoother performance. Similar to tuning your suspension to your weight and riding style.

FEULING Endurance springs allow up to .565 cam lift no machining or rocker box clearancing required. FEULING HIGH LOAD springs are good up to .650 cam lift.
Eliminate valve spring separation, maximize stability, reduce valve-train noise & harmonics!

Kits include: FEULING ENDURACE BEEHIVE valve springs, machined spring seats, seat shims, valve locks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system. THIS KIT USES THE FACTORY STOCK STEEL RETAINERS, if Ti retainers are desired see spring kit #1108 or Ti retainer kit #1109

MILWAUKEE EIGHT

SEAT Lbs. / INSTALLED HEIGHT
134 Lbs. @ 1.375 (0.405 Lift)
127 Lbs. @ 1.405 (0.435 Lift)
125 Lbs. @ 1.415 (0.445 Lift)
121 Lbs. @ 1.435 (0.465 Lift)
116 Lbs. @ 1.455 (0.485 Lift)
113 Lbs. @ 1.470 (0.500 Lift)
109 Lbs. @ 1.490 (0.520 Lift)
103 Lbs. @ 1.520 (0.550 Lift)
226 Lbs @ 0.970 OPEN HEIGHT
Coil Bind @ .920
*Cam specs measured on the lifter @ 0.050 lift with 1.61 rocker arm ratio