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The ARP 300-8248 ARP Perma-Loc Rocker Arm Adjusters provides precise valvetrain geometry and reliable rocker arm mounting for high-performance cylinder heads
For engines running spring pressures above 300 lbs open and cam lift exceeding 0
Direct bolt-in installation — no cutting
risk-free way to add meaningful power to your truck or SUV
Installation is completely reversible with no permanent modifications to your vehicle
Hypertech 158331 Hypertech Street Runner Power Chips COMP Cams Factory Muscle Camshafts The ARP 300-8248 ARP Perma-LocThe Hypertech 158331 Hypertech Street Runner Power Chips from Hypertech is a direct ECU reprogramming solution that replaces your vehicle's factory calibration EPROM with an optimized performance tune. Designed for OBD I and early OBD II gasoline vehicles, this performance chip rewrites fuel and spark tables for measurable horsepower and torque gains. It's a straightforward hardware upgrade that requires no laptop, no software, and no dyno tuning.
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