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$599.99
Isky 9985 Dual Valve Springs, 1.560 O.D.
Isky 9985 Dual Valve Springs, 1.560 O.D.

Isky 9985 Dual Valve Springs, 1.560 O.D.

.70" Maximum Lift, 600 lbs. at 1.30" Open Pressure, 245 lbs. at 2.00" Seat Pressure

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Isky 9985 Dual Valve Springs, 1.560 O.D.
Isky 9985 Dual Valve Springs, 1.560 O.D.
Isky 9985 Dual Valve Springs, 1.560 O.D.
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Isky 9985 Dual Valve Springs, 1.560 O.D.
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Part # 4509985
$599.99
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Details

Valve Spring Style:
Select Type to see
Maximum Lift:
.70"
Open Pressure:
600 lbs. at 1.30"
Seat Pressure:
245 lbs. at 2.00"
Outer Spring O.D.:
1.56"
Outer Spring I.D.:
Select Type to see
Inner Spring O.D.:
1.04"
Inner Spring I.D.:
.74"
Sold in Quantity:
Set
Solid Height:
1.20"
Notes:
Set of (16)

Info

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).

Valve Spring Application Chart (GIF)

  • 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".

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
  • Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
  • Once you're ready to start selecting valve train components, we have some useful tips and tools that should boost your performance. We discuss proper valve-springs, pushrod length, and rocker arm ratios.
  • Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.
  • Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.
  • To get the longest life and most performance out of your engine, it's important to have the valve lash set correctly. Here we show you how to set valve lash on a small block Chevy using a hydraulic lift camshaft.

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