COMP Cams Camshaft Kit CS 300R

If you're looking to get the most out of your Chevrolet Gen 1 Small Block engine for serious street performance, this COMP Cams CS 300R Solid Roller Camshaft Kit is a solid choice. This kit is designed for maximum street effort, delivering a noticeable racy idle and is well-suited for setups with a 3500+ stall converter, low rear gears, around 10:1 compression, and headers. It's a comprehensive package aimed at significantly improving your engine's performance profile.

This kit includes everything you need to perform a complete camshaft upgrade. You'll find the Magnum 255/255 solid roller camshaft itself, along with matching lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure proper timing and installation, the kit also comes with a timing chain set and assembly lube. COMP Cams also includes decals and detailed instructions to guide you through the process. This is a well-built kit designed for enthusiasts seeking a substantial performance increase from their classic Chevrolet V8.

It's important to confirm your engine's configuration before ordering. This kit fits many Chevrolet Gen 1 Small Blocks, including popular displacements like the 262, 283, 305, 327, 350, and 400. However, it does not fit LT1/LT4 engines or factory roller Small Blocks from 1985 and newer. GM vehicles gradually transitioned to roller camshafts starting in the mid-80s, so checking your specific engine by removing the intake or timing cover is recommended to determine if you have a factory roller or a flat tappet setup. Early 1955-1957 Chevrolet 265 engines may also require a specific oiling groove on the 5th cam journal.