Feuling Adjustable Pushrods – HP+Series – Evolution Big Twin – 4077

Description

Adjustable Pushrods – HP+Series® – Evolution Big Twin

Features

• Maintains maximum valve lift
• Increased stiffness and column rigidity maximizing valve-train stability, increasing engine rpm horsepower and torque output
• Minimal adjustment parameter eliminates flex and loss of valve-train stability problems
• Individual length intake and exhaust pushrods keep the adjustment extension to a minimum
• Designed to exceed performance engine needs using larger lift cams and high spring pressures while maintaining proper and critical oil flow to top-end valve gear
• Double jam nut lock system, HP+ Series® pushrod wall thickness of 0.120″ and the Race Series® wall thickness of 0.145″, both with 24 threads per inch adjustment
• Fueling pushrods can be used with factory pushrod tubes
• Made in the USA
• Can be used with hydraulic or solid lifters and street or race engines
• Requires removal of rocker covers and rocker arm supports
• Pushrods can be adjusted 0.225″ longer than stock to accomodate longer cylinders and smaller base circle camshafts
• Race Series® recommended when extreme spring pressures are used

Manufacturer Part Number: 4077

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