camshaft mechanical roller tappet advertised duration 274/280 lift .564/.570 chevrolet small block each

CC-12-769-8:
MECHANICAL ROLLER - Good for weekend cruiser with 9:1+ compression, 2000+ stall and lower gears. Noticeable idle.

CC-12-770-8:
MECHANICAL ROLLER - Great for power touring. Needs 2500+ stall, easy on parts. Rough idle.

CC-12-771-8:
MECHANICAL ROLLER - Best in street machines with 2800+ stall, 10:1+ compression with 3.73-3.90 rear gears.

CC-12-772-8:
MECHANICAL ROLLER - Good in weekend warrior with 3000+ stall. Needs good intake and exhaust with low gears.

CC-12-773-8:
MECHANICAL ROLLER - Best for Pro Street. Needs good intake and exhaust, 11:1+ compression and 3500 stall.