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PAC Racing 1200 Series Valve Spring Kits
Valve Springs, 1200 Series, Single, Beehive, 1.290 in. O.D., Chromoly Steel Retainers, 7 degree Locks, Kit
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
PAC-KS14
Part Type:
Product Line:
Summit Racing Part Number:
RSC-PAC-KS14
Valve Spring Style:
Beehive
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Chromoly steel
Outside Diameter of Outer Spring (in.):
1.055 in./1.290 in.
Coil Bind Height (in.):
1.140 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
313 lbs./in.
Inside Diameter of Outer Spring (in.):
0.650 in./0.885 in.
Locks Included:
Yes
Lock Material:
Steel
Lock Groove Quantity:
1-groove
Lock Style:
7 degree
Valve Stem Seals Included:
Yes
Valve Springs Coated:
No
Valve Stem Diameter (in.):
0.315 in.
Valve Stem Diameter (mm):
8.00mm
Quantity:
Sold as a kit.
Notes:
Includes set of 16 of 0.060 in. thick machined valve spring seats.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
130 lbs.
Open Height (in.)(application):
1.200
Open Pressure (lbs.):
318 lbs.
Remanufactured:
No
PAC Racing 1200 Series Valve Spring Kits
PAC Racing 1200 Series valve spring kits are great replacements for pushing above and beyond the performance of OEM engines. They are ideal for upgrading camshafts or rebuilding an engine. The 1200 Series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to withstand rigors of both street and mild racing applications. Order the set with options suitable for your vehicle.
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