Notes: Torker-plus; 2500-6500 RPM; valve lift intake .496; exhaust .520; not legal for sale or use on pollution controlled motor vehicles;

Notes: Performer RPM; 1500-6500 RPM; valve lift intake .496; exhaust .520; not legal for sale or use on pollution controlled motor vehicles;

Notes: Performer-plus; for OFF-IDLE-5500 RPM; valve lift intake .448; exhaust .472; not legal for sale or use on pollution controlled motor vehicles;

Notes: Xtreme Energy(TM) Hydraulic flat tappet; 600-4800rpm advertise duration 250 intake/260 exhaust valve lift .461 intake/.474 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7472-1] or part number[7472-16] or part number[7835-1] or part number[7835-16]; Requires valve lifter - performance part number[832-16] or part number[862-16]; Requires valve spring part number[942-16] or part number[972-16]; Requires valve spring retainer part number[743-16] or part number[768-16]; Requires valve spring retainer lock part number[601-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Xtreme Energy(TM) Hydraulic flat tappet; 1600-5800rpm advertise duration 268 intake/280 exhaust valve lift .510 intake/.512 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7472-1] or part number[7472-16] or part number[7835-1] or part number[7835-16]; Requires valve lifter - performance part number[832-16] or part number[862-16]; Requires valve spring part number[942-16] or part number[972-16]; Requires valve spring retainer part number[743-16] or part number[768-16]; Requires valve spring retainer lock part number[601-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Xtreme Energy(TM) Hydraulic flat tappet; 2800-7000rpm advertise duration 294 intake/306 exhaust valve lift .544 intake/.558 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7472-1] or part number[7472-16] or part number[7965-1] or part number[7965-16]; Requires valve lifter - performance part number[832-16] or part number[862-16]; Requires valve spring part number[26986-16] or part number[986-16]; Requires valve spring retainer part number[740-16]; Requires valve spring retainer lock part number[611-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Dual Energy(TM) Hydraulic flat tappet; 1500-5750rpm advertise duration 265 intake/273 exhaust valve lift .472 intake/.486 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7835-1] or part number[7835-16]; Requires valve lifter - performance part number[832-16]; Requires valve spring part number[942-16] or part number[972-16]; Requires valve spring retainer part number[747-16] or part number[768-16]; Requires valve spring retainer lock part number[611-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Dual Energy(TM) Hydraulic flat tappet; 1000-5500rpm advertise duration 255 intake/263 exhaust valve lift .434 intake/.467 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7835-1] or part number[7835-16]; Requires valve lifter - performance part number[832-16]; Requires valve spring part number[942-16] or part number[972-16]; Requires valve spring retainer part number[747-16] or part number[768-16]; Requires valve spring retainer lock part number[601-16] or part number[611-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Xtreme Energy(TM) Mechanical Street Roller 3200-7200rpm advertise duration 280 intake/284 exhaust valve lift .592 intake/.608 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7472-1] or part number[7472-16] or part number[7965-1] or part number[7965-16]; Requires valve lifter - performance part number[838-16]; Requires valve spring retainer part number[741-16]; Requires valve spring retainer lock part number[611-16]; Not legal for sale or use on pollution-controlled motor vehicle

Notes: Xtreme Energy(TM) Mechanical Street Roller 2000-6000rpm advertise duration 268 intake/274 exhaust valve lift .589 intake/.602 exhaust lobe angle 110 degree; Requires pushrod - performance part number[7472-1] or part number[7472-16] or part number[7965-1] or part number[7965-16]; Requires valve lifter - performance part number[838-16]; Requires valve spring retainer part number[741-16]; Requires valve spring retainer lock part number[611-16]; Not legal for sale or use on pollution-controlled motor vehicle