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Earl's GM LS Oil Cooler Block-Off is a billet cover that has an extra 1/8" NPT port that can be used for an oil pressure gauge or a turbo oil supply port. The 1/8 in. port is located on the top for extra header clearance. Includes billet cover, O-ring seal and mounting hardware.
|Port Size||0.125 in.|
*Some manufacturer restrictions apply.
Earl's Performance Products was founded by Earl Fouts in 1955 in Lawndale, California. The mission was to supply high-quality military aircraft surplus plumbing components directly to the racing industry from a small retail outlet. As the military surplus market dried up, Earl recognized the need for continuity of supply for the racing market and pioneered the Earl's range of hoses and fittings that are still used today. In doing so he created the racing aftermarket plumbing industry.
Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.
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