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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-8065

383/440 Exhaust Manifold Fastener Kit. Includes:(12) studs, (9) nuts, & (2) Long & (1) short sleeve nuts

Compatibility: 1968 - 1974 B-Body

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