Holley Muscle Series Valve Covers - SB Chevy -Natural Finish - SB Chevy 2010293 Lateral and longitudinal tests

Lateral and longitudinal tests

Current draw at 43 PSI and 13

Primary throttle shaft capped to prevent entry of debris & contaminates

rotates 360 degrees for ease of intallation/sampling

Holley Muscle Series Valve Covers - SB Chevy -Natural Finish - SB Chevy 2010293 Lateral and longitudinal testsHolley is pleased to introduce their Muscle Series Small Block Chevy valve covers inspired by 1970's era GM factory L82 LT1 Z28 equipped engines. These valve covers are a continuation of Holley's Vintage Series valve cover line featuring a classic finned design and retro styling cues. Each set consists of one valve cover with a twist in oil fill knockout (oil fill cap included) and one with a recessed area to place an adhesive backed Holley emblem