World's top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valve train parts for all race and street performance engines.

Competition Cams, Inc., often styled as COMP Cams, is a specialty performance automotive, motorcycle, and kart aftermarket parts manufacturer. The company has five US locations including headquarters in Memphis, Tennessee.

COMP Cams adjustable on head valve spring testers are a great way to check your spring pressure on an assembled engine. Made of high-quality billet aluminium, they are designed to fit onto your rocker arms for quick pressure checks. These valve spring testers are adjustable to work with almost any length rocker arm and are capable of measuring pressure up to 600 lbs.

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