Because they're ground differently, a solid-lifter cam must use solid lifters and a hydraulic cam must use hydraulic lifters. Also, you can't mix and match cams and lifters. There was an Milodon Oil Pan 1980-1985 Small Block Chevy Car & Truck. Pro LS Vortec Truck Swap, Hydraulic Roller Tappet, Advertised Duration 278/287, Lift. Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift. Either type of roller cam and lifter is considerably more expensive than a flat tappet. posted: 2013 Volvo C30 T5 Premier Plus Hatchback. Find CHEVROLET 5.7L/350 Camshaft Kits and get Free Shipping on Orders Over 109 at Summit Racing. Hydraulic rollers are becoming much more common but haven't found much of a following in high-performance circles yet, except in late-model computer-controlled cars. Most roller lifters aren't of the hydraulic type, so they require adjustment just like a solid lifter. A roller cam is normally associated with hard-core race engines, but several companies make street rollers that are docile enough for a daily driver, yet still make serious power. Hydraulic and solid, nonroller cams are also called 'flat-tappet' cams.
A solid-lifter cam is beneficial in high-rpm applications (6500 rpm and higher), but it requires a lash adjustment every few months.
TYPE OF LIFTER: A hydraulic-lifter cam is the best choice if the car is to be a daily driver, because it doesn't need periodic lash adjustments.
