Start the engine and bring to break-in rpm. the engine getting a boost with a Thomas 550 hydraulic cam kit, headers. Some parts are not legal for use in California or other states with. Nickey 427 Camaro and Chevelle 1968 Nickey Chevrolet and Thomas continued their. Will it fit 1979 caprices with stock 350. Slow idle speeds may result in severe cam and lifter wear. The Lunati 638-10120702LK1 cam kit will fit an 86 and older 350 4-bolt main. Do not allow the engine to run under 2000 rpm for the first 1/2 hour. On an episode of Horsepower TV, the kit powered the show’s 290-horsepower 350 Chevy test mule past the 300 horsepower threshold304 horsepower to be exact.In fact, it netted an additional 19 ft.-lbs. Coat cam lobes and bottoms of each lifter with MoS2 lube (supplied) to prevent cam lobe and lifter wear from occurring during initial start-up. If you watch PowerNation on Saturday or Sunday mornings, you may have seen this nice little kit do its thing. If installed in one of these trucks, a custom computer re-program is needed. This cam is great for additional bottom end torque. Oil/additive must contain Zinc designed for use with flat tappet camshafts. This camshaft is a great upgrade for 1996-2000 Chevy/GMC trucks equipped with the 元1 Vortec 350 Engine. Do not use rotator type valve springs or retainers for this application. Recommended Valve Springs for OEM heads: Edelbrock part #5703 Use only stock ratio rocker arms Adjustable valvetrain required In order for this Performer RPM cam and lifter kit to be covered under ANY WARRANTY you MUST use the correct Edelbrock Sure Seat Valve Springs or equivalent.For more information, visit Installation Notes Thumpr Series cam and lifter kits deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance.WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. Thumpr camshafts are available in different grind profiles each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. This gives you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. The lobe profile and grind characteristics of these Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics of the cams. In an ongoing quest to provide you with the performance and sound you demand, COMP Cams engineering team proudly introduces the Thumpr Series cam and lifter kits. COMP Cams is bringing the muscle car sound back, and it's nastier than ever! Let's face it-few things serve to grab our attention at a car show or cruise night more than a car with a thumping, high performance idle.
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