Hydraulic Roller - Xtreme Energy: Good for towing, excellent mileage, smooth idle. Will work with stock converters and gears.
COMP Cams Xtreme Energy XR 252HR-10 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams
Hydraulic Roller - Xtreme Energy: Good for towing, excellent mileage, smooth idle. Will work with stock converters and gears.; 252/258 Advertised Duration, 200/206 Duration .050", .472"/.480" Lift, 110 Lobe Separation; 600 to 4600 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;
Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc)
