Hot Rod Dual Valve Springs - RPM Hydraulic Roller 145lbs@1.900" & 492 lbs/in Max 0.710" lift, (351C & BBC Chevy 454)

PAC 1901-16, 1900 Hot Rod Series Dual Valve Springs. 492 lbs/in Rate & 145 lbs @ 1.900" installed

Performance with a budget Hydraulic & Street Roller Valve Springs. 

PAC Racing’s 1900 Series Hot Rod Valve Springs provide performance and quality on a budget. These budget priced dual springs utilise the signature PACaloy super clean wire. The springs undergo a multi-peen process to optimise longevity. Street Performance Valve Springs. 

PAC 1901 Applications:

• 1900" Installed: Heavy Hydraulic Roller springs for 351C Cleveland & 454 BBC Chevy
• 1.800" Installed: Street Solid Roller Springs for Small Blocks, Holden 308, Chevy 350 & Ford 302 Windsor

PAC 1901 Specifications:

• Part Number:     PAC-1901-16
• Valve Spring Application: Street/Strip Hydraulic Roller & Street Solid Roller
• Description:         1900 Hot Rod Series Dual Springs
• Spring Type:        Dual Springs
• Rate:    492 lbs/in
• Lift Max (in)” 
  • 1.900" - 0.710" lift with 060" safety
  • 1.800" - 0.610" lift with 060" safety     
• O.D. (in):        
• I.D. (in)    :        
• Inside Spring I.D. (in):    
• Spring Install / Seat Load (LB):   145lbs@ 1.900" | 194lbs@ 1.800" 
• Open Load (LB):   
  • 1.900" install @ 0.600" lift - 440 lbs open
  • 1.800" install @ 0.600" lift - 490 lbs open
• Open Height (in):    
• Coil Bind Max (in):  1.130"  
• Damper:        No
• Quantity: 16