LSR Rectangular Port 255/271 Hydraulic Roller Cam for GM LS GEN III/IV
Application: Fits 4.8, 5.3, 5.7, 6.0, 6.2 and 7.0 Liter LS1, LS2, LS3, LS4, LS6, LS7 plus SUV and Truck Engines (Grinds are specific to displacement and cylinder head design)
440+c.i., purpose built applications focusing on power above 6000 RPM with rectangular port heads.
- Feature higher exhaust duration and overall lift to provide broadest powerband and most top-end power of any COMP Cams LS camshaft.
- Require 26926-16 high-load valve springs.
- Take advantage of today's newer and better flowing aftermarket cylinder heads.
- Unique grinds for both cathedral and rectangle port heads.
- Require 26926-16 high-load valve springs.
- Take advantage of today's newer and better flowing aftermarket cylinder heads.
- Feature higher exhaust duration and overall lift to provide broadest powerband and most top-end power of any COMP Cams LS camshaft.
- Unique grinds for both cathedral and rectangle port heads.
