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SBC Z28 VALVE SPRINGS, DROP IN FIT, .500 MAX LIFT

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$26.50
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Product Description

SBC Performance Springs, Set of Sixteen

Z-28 Drop in Performance Valve Springs

 Fitment: 1955-1985 283, 302, 307, 327, 350 & SB 400

 

These might be the most popular budget priced valve springs every made!

Original equipment on many Gen I High Performance 302, 327 and LT1 350 engines from the 60’s.

After all these years, they are still popular with the high performance Hydraulic cam street scene.

Basically, these work well with many hydraulic cams with under .500" lift.

Duration @ .050” should be kept under 240 degrees.

Can be fitted using factory retainers and oil shields.
 

      Specs:

  • Set of sixteen Springs
  • OD: 1.265"
  • ID: .780"
  • 110 Lbs @ 1.705"
  • 305 Lbs @ .500" Lift
  • Coil Bind: 1.150"
  • Maximum lift- .500"

 

Need help verifying fitment for your application? Just write with your cam specs.

Applications with over .500" lift can consider one of our many high lift spring kits listed in our store.

 

NOTE: Heads which came with rotator retainers on the exhaust will need to replace them with actual retainers. If your heads have rotators, consider a complete spring kit instead.

305 engines- Due to the lower spring base locations on the exhaust locations, some 305 heads with factory installed rotators will need -.070" down locks and shims to establish the correct installed heights.


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