SKU: ISKLB904
MPN: LB904
The Lifter Bushings Bronze Set 1.002 OD .904 ID from ISKY CAMS is a critical engine component designed for high-performance and stock engine rebuilds. These precision-engineered bronze bushings serve as the wear surface between your hydraulic lifter bodies and the engine block's lifter bores, absorbing the constant micro-motion and friction inherent to valve train operation. Whether you're restoring a classic muscle car, upgrading a street engine, or rebuilding race-spec heads, quality lifter bushings ensure consistent valve timing and prevent the catastrophic bore damage that results from lifter-to-bore contact.
Manufactured from durable bronze—an alloy superior to raw cast iron for anti-friction properties—these bushings feature a 1.002-inch outer diameter and .904-inch inner diameter, machined to exacting tolerances for proper fit and clearance. Bronze's lower hardness relative to steel allows it to wear preferentially, sacrificing itself to protect the harder aluminum or iron block material beneath. The ISKY CAMS design accommodates standard hydraulic lifter specifications, providing smooth operation across a wide RPM range while maintaining the oil film necessary for long-term reliability and consistent valve actuation.
This set is essential for anyone performing a complete engine overhaul, replacing worn lifter bores, or installing performance hydraulic lifters on a daily driver or weekend warrior. Installation requires honing the lifter bore to the proper diameter and careful press-fit or adhesive application, making this a job for experienced engine builders or shops with specialized equipment. Compatible with most small-block and big-block engines using standard hydraulic lifter configurations, the Lifter Bushings Bronze Set 1.002 OD .904 ID represents OEM-quality protection at an accessible price point, ensuring your freshly rebuilt engine achieves full valve train potential.
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