Product Discontinued

LUNATIPART NUMBER: 638-73925K2

Valve Spring Kit Lock Angle: 7 Deg

Name: Valve Spring Kit Lock Angle: 7 Deg
Brand: LUNATI
SKU: 638-73925K2
Price: 335.95 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Valve Spring Kits

Lock Angle: 7 Deg
Outside Diameter: 1.306"
Valve Stem Size: 11/32"
Valve Groove Type: Single
Includes Valve Springs, Retainers, Locks, Locator/Cup & Valve Seal

A ready-to-install, complete Dual Valve Spring Kit that includes springs, retainers, valve locks, valve stem seals and locators for all Chevy Small Block V8 engines. Features chrome silicon alloy, precision wound, heat-set, 1.306" O.D. dual valve springs for required valve spring seat and open load pressure, plus total spring travel that will accommodate cams with aggressive gross valve lifts of up to .660". Also included are CNC machined, 4140 steel alloy spring retainers, CAD designed to reduce weight while retaining uncompromised strength and durability. Precision machined, 7-degree steel valve locks are also provided for superior valve stem holding. Each kit also includes premium steel locators and high-quality, Viton synthetic rubber, steel reinforced valve stem seals for superior valve stem lubrication and oil control.

Applications include: Gen I Chevy Small Block V8 262-400 and Gen II (LT1-LT4) V8 305-350 1987 & Later endurance circle track, off road, road racing, and marine or serious street performance applications.

638-73925 Dual Valve Spring Specs:
1.306" O.D.
0.676" I.D.
153 lbs. @ 1.810" Seat Load
400 lbs. @ 1.150" Open Load
0.660" Maximum Valve Lift
Kit includes:
Valve Springs 638-73925-16
Retainers 638-75794-16
Locks 638-77048-16
Locator/Cup 638-86731-16
Valve Seal 638-78518-16

Lunati combined their most popular street valve springs with their matching steel retainers and valve locks into one package! This is a foolproof way to make sure you get the right components that work together.

Part TypeValve Spring Kit

Product LineLunati Valve Spring, Retainer, and Valve Lock Kits

BrandLUNATI

Package Height2.9

Package Width3.6

Package Length13.4

Weight4.95 PG

Part CategoryPerformance Parts

CoatedNo

Damper Spring IncludedNo

Spring Rate379 lbs./in.

Lock Groove Quantity1-groove

QuantitySold as a kit

Locks IncludedYes

Inside Diameter Of Inner Spring0.676 in (17.17 mm)

Valve Spring StyleStandard

Retainers IncludedYes

Lock Style7 degree

Outside Diameter Of Outer Spring1.306 in (33.2 mm)

Inside Diameter Of Outer Spring0.949 in (24.105 mm)

Lock MaterialChromoly

Part FitmentSemi Universal

Retainer MaterialChromoly steel

Number Of Springs Per ValveDual

Vendor Part Number73925K2LUN

Package Qty1

Package TypeEA

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