Small Block/LS-Series Valve Spring Kit


  • Small Block and LS Engines
  • 1.320″ O.D.
  • 1.220″ solid height
  • Crate 604 & CT525 Valve springs (Beehive Spring)
  • IMCA Legal
  • Set of 16 springs

Shipping is free, but there is a delivery fee for residential addresses.

Valve Spring Kit, 1.320″ O.D.

P/N 19420455

  • Set of 16
  • O.D.: 1.320″
  • Pressure at installed height: 101# @1.780″
  • Solid height: 1.220″
  • Average rate (lbs @ in): 332
  • Keepers P/N 10166345 qty 32

Note: Kit of 16 springs. CT400, ZZ5, ZZ6, ZZ383, SP383 (Beehive Spring)


Small Block/LS-Series Valve Spring Kit, 1.320″ O.D.

12499224 Chevrolet Valve Springs

Kit of 16 P/N 12625033

When it comes to building the Small-Block or LS engine for the project vehicle of your dreams, you don’t want to sacrifice performance or durability ヨ and that’s why you should trust Chevrolet Performance. They’ve been designing, testing and manufacturing performance parts since 1955. Their engineers know what it takes to offer the finestquality parts for your Chevy.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to