Loves302Chevy
"One test is worth a thousand expert opinions."
Hey Grumpy,
Do you have any info on this subject?
A typical SBC HYD flat tappet lifter weighs 96 g.
I have a set of Crower solids that weigh 82 g.
Some old Crane Cams solid roller link-bar lifters weigh 205 g for the pair.
A roller lifter is able to follow a much more aggressive camshaft lobe, compared to a flat tappet.
But it is usually heavier, requiring a stiffer valve spring to keep it in contact with the cam's lobe.
At what point does the weight of the lifter limit rpm potential?
Or, when does the valve spring get so stiff that component longevity becomes shortened?
Do you have any info on this subject?
A typical SBC HYD flat tappet lifter weighs 96 g.
I have a set of Crower solids that weigh 82 g.
Some old Crane Cams solid roller link-bar lifters weigh 205 g for the pair.
A roller lifter is able to follow a much more aggressive camshaft lobe, compared to a flat tappet.
But it is usually heavier, requiring a stiffer valve spring to keep it in contact with the cam's lobe.
At what point does the weight of the lifter limit rpm potential?
Or, when does the valve spring get so stiff that component longevity becomes shortened?