Specs: 220/220, .600"/.600", 112 LSA, 3-Bolt Enhanced Performance: Designed for LS1, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L engines, the TSP 220R camshaft delivers a significant boost in horsepower and torque, making it ideal for performance builds that demand power across the RPM range. This camshaft ensures precise valve timing for enhanced airflow and improved engine efficiency without sacrificing drivability. High-Quality Materials: Manufactured using premium-grade materials, this camshaft is built for durability and reliability, making it capable of withstanding high-RPM and high-stress environments. The 220r camshaft will work with Stock Torque Converters. Texas Speed TSP 220R Camshaft Fits 1997-2013 LS-Based GM Engines 4.8 5.3 5.7 6.0 6.2 Specs: 220/220 .600"/.600" 112LSA, 3 Bolt Pattern Texas Speed's 220R is an excellent performance camshaft with a smooth idle in 5.7L and larger engines. Many customers select this when looking for a camshaft that drives almost stock, and can be practically hidden with some exhaust systems. If you're looking for a small stealth camshaft that will still make large power gains, the 220R is a great option to consider. The idle is more aggressive in 4.8/5.3L applications, but still retains great street manners and won't hurt fuel economy as much as larger camshafts. In 5.3L and larger applications, the 220R will work with stock torque converters, though a higher stall will optimize performance.