COMP Cams Cam & Lifter Kit B455 295T H-1

If you're looking to build a serious street/strip machine with a Buick 400, 430, or 455 engine, this COMP Cams Big Mutha' Thumpr camshaft and lifter kit is designed to give you that aggressive performance profile. This kit is intended for enthusiasts who want a noticeable, very rough idle and are willing to make the supporting modifications to achieve it. It's a popular choice for those rebuilding or upgrading the top end of their classic Buick V8.

This kit includes the camshaft, a full set of lifters, assembly lube to get you started right, and decals for that finishing touch. The B455 295T H-1 camshaft itself features a 243/257 degree duration split and is designed to work best with a compression ratio of 9.5:1. To really unlock its potential, you'll need to pair it with a higher stall speed torque converter (2800+ RPM), an upgraded intake manifold, appropriate gearing, and free-flowing headers. This combination ensures the engine can breathe and the powerband is utilized effectively.

Keep in mind that this camshaft profile is aggressive and will result in a very rough idle, which is part of its character for performance applications. It's not designed for stock setups or for those seeking a quiet, smooth running engine. This kit fits a wide range of Buick models from the late 60s through the mid-70s, including popular choices like the Electra, LeSabre, Riviera, and GS models, as well as some Pontiac Catalina applications.