Speed Pro Hydraulic Lifter Flat Tappet, For Chevrolet V8, Each #HT817 Brand_Marshalltown  Size 30 – For

 Size 30 – For heavy machining

Cutting length 27mm

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Cutting length 15mm

Fits most Chevy big block applications with a two-piece rear main seal up to 1990

Speed Pro Hydraulic Lifter Flat Tappet, For Chevrolet V8, Each #HT817 Brand_Marshalltown  Size 30 – ForSpeed Pro hydraulic lifters are precision manufactured to maintain precise valve timing under all operating conditions. A patented constant orifice metering valve provides precise oil metering to the overhead valvetrain, and longer plungers or pistons provide increased bearing surfaces, resulting in longer lifter life. Their check valves are lightweight flat discs, allowing for higher speeds and more uniform operation than competitive lifters.