j par
Well-hung Member
Hydraulic or solid has more to do with the weight of the lifter which would probably be just about the same. A roller lifter is going to be more heavy and require a heavier spring to keep it from bouncing...@j par, IIRC you are running these SM loaded heads on your Duster with a solid cam? They only show for a hydraulic cam in their ad. Inquiring minds want to know...