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Exhaust Manifold Components

Exhaust Manifold Sleeve Nuts & Fastener Kits

Special "sleeve" nuts used on 340, 383, 400 and 440 V8 engines. Big-block engines use 3/8" thread size while 340 engines have a 5/16" thread size.

Part# WO-OMK

Sleeve Nut - Big Block - New Reproduction 3/8" sleeve nut - long version. Used on various years and models and measure 2-11/16". Most engines require (2). The hex head is tapped 3/8" -24 as originals. (each)

Compatibility: 1900 - All Mopar - Availability: 10 in stock

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