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BTR Platinum Valve Spring Kits
Valve Spring Kit, Platinum, Dual, Standard, Titanium Retainers and Locks, Valve Stem Seals, Chevrolet, Small Block LS, Kit
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Estimated Ship Date: Nov 11, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SK427/560
Part Type:
Product Line:
Summit Racing Part Number:
BTC-SK427
Item Number:
5799230
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.750 in.
Retainers Included:
Yes
Retainer Material:
Titanium
Outside Diameter of Outer Spring (in.):
1.300 in.
Coil Bind Height (in.):
1.050 in.
Damper Spring Included:
Yes
Spring Rate (lbs./in.):
647 lbs./in.
Inside Diameter of Outer Spring (in.):
0.900 in.
Inside Diameter of Inner Spring (in.):
0.628 in.
Locks Included:
Yes
Lock Material:
Titanium
Lock Groove Quantity:
1-groove
Lock Style:
Stock
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.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Remanufactured:
No
BTR Platinum Valve Spring Kits
BTR Platinum valve spring kits are dual-spring kits, highly recommended when upgrading to an aftermarket camshaft. Each assembly was created to fill the need for high performance—and comes with quality dual-valve springs, titanium or chromoly retainers, locks, seals, and locators for stock or bronze guides. Build a better high performance cam with BTR valve spring kits! Order the material and stem seal color you prefer, and the model recommended for use with your engine application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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