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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
BH2374 or BH2375 Headers Developed Specifically for this Vehicle
Idle Mixture Screw Replacement Cork Gasket
4L V8 1989 - 1991 Chevrolet R3500 454/7
097" seat size should be used for small four barrel carburetors
LS Valve Covers - Polished - 241-90 flowmonster BH2374 or BH2375 Headers DevelopedOverview: Holley's cast aluminum valve covers for GM LS engines provide a fresh, refined look without the need to relocate the coils. There's no question the factory "coil on cover" design gives the LS that signature high tech look, but the factory brackets and coil location leave room for improvement. Clean up that signature look with Holley's LS Valve Covers! They incorporate a radiused shape, angled coil mounting, and a billet fill cap. Plus, the
US$ 36.00
US$ 95.00
US$ 119.95
