Erson E915055 FSP Professional Drag Racing Valve Springs, 1.677" Dia., 415#@ 2.300, 1215#@ 1.250, Max Lift 1.070, Set of 16

Similar To The E915049 As Shown Above, Designed For 1/4 Mile Drag Race Applications Where Longer Valves Are Used. Brand: Erson Cams Category: FSP Professional Coil Bind: 1.180 I.D. Inner: 0.635" I.D. Middle: 0.900" I.D...

Erson E915049 FSP Professional Drag Racing Valve Springs, 1.677" Dia., 350#@ 2.200, 1073#@ 1.200, Max Lift 1.005, Set of 16

Primarily For Supercharged Alcohol Combinations, These Springs Deliver The Open Pressures Required To Maintain Valve Train Stability, RPM And Long Spring Life. These Springs Are Also An Excellent Choice For Pro Stock Truck, Competition Eliminator And Pro...

Erson E915048 FSP Professional Drag Racing Valve Springs, 1.677" Dia., 346#@ 2.100, 1014#@ 1.200, Max Lift .900, Set of 16

Primarily For Supercharged Alcohol Combinations, These Springs Deliver The Open Pressures Required To Maintain Valve Train Stability, RPM And Long Spring Life. These Springs Are Also An Excellent Choice For Pro Stock Truck, Competition Eliminator And Pro...

Erson E915170 FSP Professional Drag Racing Valve Springs, 1.640" Dia., 280#@ 2.100, 794#@ 1.250, Max Lift .900, Set of 16

Similar To The E915160, Except With A Slightly Taller Installed Height And Increased Seat Pressure, Yet Nearly Identical Open Pressure.  Brand: Erson Cams Category: FSP Professional Coil Bind: 1.150 I.D. Inner: 0.860" I.D...

Erson E915160 FSP Professional Drag Racing Valve Springs, 1.640" Dia., 240#@ 2.000, 825#@ 1.150, Max Lift .880, Set of 16

Designed For Use In Serious Bracket Class Applications Using Normally Aspirated Engines, These Springs Will Allow The Racer To Have The Consistency Required To Win Round After Round.  Brand: Erson Cams Category: FSP Professional Coil...

Erson E915041 FSP LS1 High-lift Hydraulic Roller Professional Racing Valve Springs, 1.274" Dia., 250#@ 1.800, 700#@ 1.050, Max Lift .750, Set of 16

LS1 High-lift Hydraulic Roller Valve Springs Brand: Erson Cams Category: FSP Professional Coil Bind: .985" I.D. Outer: 0.630" O.D. Outer: 1.274" Spring Rate: 600 Valve Spring: DUAL Max Lift: .750"    

Erson E915045 FSP LS1 High-lift Hydraulic Roller Professional Racing Valve Springs, 1.290" Dia., 150#@ 1.810, 400#@ 1.150, Max Lift .660, Set of 16

LS1 High-lift Hydraulic Roller Valve Springs Brand: Erson Cams Category: FSP Professional Coil Bind: 1.100 I.D. Inner: 0.680" I.D. Outer: 0.945" O.D. Inner: 0.940" O.D. Outer: 1.290" Spring Rate: 378 Valve...

Erson E915046 FSP Professional Racing Valve Springs, 1.255" Dia., 115#@ 1.750, 350#@ 1.175, Max Lift .600, Set of 16

Targeted Primarily For Classes That Require Stock Size And Configuration Valve Springs, The 1.750" Installed Height Allows For .600" + Lift With A Hydraulic Or Mechanical Flat Tappet Camshaft. Brand:Erson Cams Category: FSP Professional Coil...

Erson E915044 FSP Professional Racing Roller Valve Springs, 1.610" Dia., 245#@ 2.050, 660#@ 1.300, Max Lift .780, Set of 16

Similar To The E915043, This Spring Is Designed For Use Where A Slightly Taller Assembled Height Is Available And A Slightly Higher Spring Rate. Brand: Erson Cams Category: FSP Professional Coil Bind: 1.220 I.D. Inner: 0.842" I.D...

Erson E915043 FSP Professional Racing Roller Valve Springs, 1.580" Dia., 235#@ 1.950, 640#@ 1.250, Max Lift .730, Set of 16

Designed For Use In The Demanding Oval Track Market Using Roller Tappet Camshafts Or Where The Increased Spring Pressure Is Required For Maximum Performance. Brand: Erson CamsCategory: FSP ProfessionalCoil Bind: 1.170"I.D. Inner: 0...

Erson E915042 FSP Professional Racing Roller Valve Springs, 1.580" Dia., 249#@ 2.050, 650#@ 1.270, Max Lift .800, Set of 16

Ideal For Small Block Chevy High-lift, High RPM Oval Track / Drag Race Applications Brand: Erson Cams Category: FSP Professional Coil Bind: 1.200 I.D. Inner: 0.830" I.D. Outer: 1.150" Max Lift: 0.800 O.D...

ERSON 3875 Valve Springs Mechanical Roller Valve Spring, Dual With Damper 1.550" Dia., 240#@ 2.100", 670#@ 1.400", Max Lift .700, Set of 16

Made from the highest quality alloys, these "Custom Wound" springs are engineered to endure stresses of high performance engines. Each set is matched for load consistency.   CATAGORY: Mechanical Roller Valve Spring SEAT PREASURE: 240LBS @ 2.100"...