4in Cowl Hood Scoop - Bolt-on

The HARWOOD 4in Cowl Hood Scoop – Bolt-on is a high-performance fiberglass hood scoop engineered for vehicles requiring enhanced engine bay cooling and air intake optimization. At 4 inches of height and 42 inches in length, this Z-28 style scoop delivers a functional cooling solution while maintaining aggressive visual presence on the hood line. The bolt-on design eliminates the need for welding or permanent modification, making installation straightforward for mechanics and enthusiasts who prioritize reversibility and factory-quality fitment.

Constructed from fiberglass with a black finish, this hood scoop weighs 13 lbs and measures 30.5 x 5.5 x 44.5 inches in its shipping dimensions. The material choice reflects a balance between durability and weight reduction—critical considerations for performance vehicles where unsprung mass impacts handling and acceleration. The scoop's dimensions are optimized to clear typical underhood components while channeling airflow effectively to the engine's intake manifold or carburetor. Black finish integrates seamlessly with most OEM hood treatments and withstands UV exposure and engine heat cycling common to high-performance driving.

This scoop is suited for classic muscle car restoration, street performance builds, and track-prepared vehicles where cooling efficiency and period-correct styling matter equally. Buyers performing engine upgrades—supercharging, turbocharging, or larger displacement builds—benefit from the additional air volume this design provides. The bolt-on configuration appeals to owners who want functional upgrades without permanent bodywork modification, preserving resale and originality considerations.

Hood scoops remain a proven method for increasing underhood airflow in forced-induction and high-output engine applications. The Z-28 profile is a recognized standard in the performance aftermarket, with fitment data and installation literature widely available. Verify bolt-hole spacing and hood clearance against your specific vehicle platform before ordering to ensure proper fitment and function.