473004 High Performance Valve Lock AMC, CHEV, FORD, GMC, MERCURY - 290, 304, 343, 352, 360, 390, 396, 401, 402, 406, 427, 428,

Name: 473004 High Performance Valve Lock AMC, CHEV, FORD, GMC, MERCURY - 290, 304, 343, 352, 360, 390, 396, 401, 402, 406, 427, 428,
Brand: MELLING
SKU: 689-473004
Price: 4.99 USD
Availability: InStock

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Ships on Sep 15, 2026

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High Performance Valve Lock

AMC, CHEV, FORD, GMC, MERCURY - 290, 304, 343, 352, 360, 390, 396, 401, 402, 406, 427, 428, 454 (1958–1994)

Melling 473004 Features:

New Melling valve locks should be used to install both reclaimed and new engine valves. Melling valve locks are manufactured with quality materials and engineered to meet or exceed OEM requirements for each application. Never reuse valve locks, always replace with new Melling valve locks.

Grade Type: Performance
Length: 0.38 in.
Lock Groove Quantity: 2
Material: Steel
Valve Stem Diameter: 0.39 in.
Width: 0.53 in.

Part TypeValve Locks

BrandMELLING

Package Height0.4

Package Width0.53 in.

Package Length0.38 in.

Weight0.01 PG

Part CategoryPerformance Parts

Lock Groove Quantity2

MaterialSteel

Valve Stem Diameter0.39 in.

Part FitmentDirect Fit

Grade TypePerformance

Vendor Part Number473004

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

473004 High Performance Valve Lock AMC, CHEV, FORD, GMC, MERCURY - 290, 304, 343, 352, 360, 390, 396, 401, 402, 406, 427, 428,

Melling 473004 Features:

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords