The Speedmaster PCE241.1001 Gilmer Drive Adapter Pulley is designed for Mopar Chrysler small-block engines including the 318, 340, and 360, as well as big-block applications covering the 383 and 440. This adapter pulley allows you to convert your front drive system to a Gilmer belt-style setup, providing a more positive and reliable power transfer for performance street and racing builds.
Engineered to work with Speedmaster's Gilmer drive system, this adapter pulley offers a straightforward installation path for builders looking to upgrade their Mopar accessory or timing drive configuration. Whether you're building a classic muscle car or a dedicated race engine, this adapter is a key component in completing a clean, high-performance front drive assembly on your Chrysler small-block or big-block powerplant.