Key Specs

BrandIsky Cams
Valve Spring Style
Maximum Lift.70"

Need To Know

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These springs run harder, rev higher, and live longer. Isky Tool Room (Std) and Rad-9000 (Rad) racing valve springs are some of the very best valve springs made. Valve springs sold in complete engine sets (16).

  • Manufactured to the highest standards in the industry
  • Guaranteed for 1,000 racing miles
  • Each spring thoroughy tested at the factory

NOTE: Machining of valve seat may be required if spring O.D. is larger than 1.250".


CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


BrandIsky Cams
Valve Spring Style
Maximum Lift.70"
Open Pressure600 lbs. at 1.30"
Seat Pressure245 lbs. at 2.00"
Outer Spring O.D.1.56"
Outer Spring I.D.
Inner Spring O.D.1.04"
Inner Spring I.D..74"
Sold in QuantitySet
Solid Height1.20"
NotesSet of (16)