HYDRAULIC ROLLER - Xtreme Energy Retro-Fit: Street/strip applications, 9:1+ compression, intake, headers, 2800+ stall, gears.
Product Features:- HYDRAULIC ROLLER - Xtreme Energy Retro-Fit: Street/strip applications, 9:1+ compression, intake, headers, 2800+ stall, gears.
- 288/294 Advertised Duration, 236/242 Duration @ .050", .520"/.540" Lift, 110 Lobe Separation
- Valve spring upgrade required