Holley LS Valley Cover with Oil Fill - Natural Billet - 241-367 performance-exhaust-mufflers Large Core Flow FX "Straight-through"

Large Core Flow FX "Straight-through" Performance Mufflers

GMT400 Platform

1963-1964 Dodge 440 426 CID

and instructions and is covered by our Flowmaster® Lifetime Limited Warranty

The sound level will depend greatly on the engine and level of modifications

Holley LS Valley Cover with Oil Fill - Natural Billet - 241-367 performance-exhaust-mufflers Large Core Flow FX "Straight-through"Overview: Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are machined smooth on the underside, allowing for the