TRICK FLOW 2500500 VALVE SPRING UPGRADE KIT 1999-04 FORD F-150 SVT LIGHTNING 02-03 HARLEY SUPERCHARGED 5.4L V8 STOCK HEADS TFS-2500500L

TRICK FLOW VALVE SPRING UPGRADE KIT 1999-04 FORD F-150 SVT LIGHTNING 02-03 HARLEY SUPERCHARGED STOCK HEADS

• Enhanced valvetrain stability

• Reduced weight

• Lower spring pressure

 Supports up to .600" lift

• 1.05" outside diameter

• Beehive-style springs

• 208 lbs./in. spring rate

What's Included

• (16) Valve springs

• (16) Retainers

• (16) Seals

• (16) Locks

• (16) Shims

• Installation instructions

Trick Flow Valve Spring Upgrade Kit
Upgrade your 5.4L V8 Supercharged 1999-2004 SVT Lightning with confidence using the Trick Flow valve spring kit. Designed to provide the proper seat pressure for aftermarket camshafts, this kit supports cam lifts of up to .600" when paired with OEM cylinder heads. The beehive-style springs deliver 208 lbs./in. of pressure at a 1.020" installed height, ensuring durability and performance. The kit also includes hardened 4140 chromoly retainers, 7-degree valve locks, valve seals, and shims. Best of all, these springs install directly on factory heads with no machining required.

Valve Spring Specifications

• Retainer Material: Chromoly steel

• Outside Diameter (outer spring): 1.050 in.

• Inside Diameter (outer spring): 0.750 in.

• Spring Rate: 208 lbs./in.

• Coil Bind Height: 0.980 in.

• Lock Material: Steel

• Lock Style: 7-degree, 3-groove

• Valve Stem Diameter: 0.275 in. (7.00 mm)

• Notes: Spring OD tapers from 1.050 in. to 0.940 in.