What is a roller block?
What is a roller block?
A roller block is for a roller cam with roller lifters.
How do I know if I have roller lifters?
You can pull a valve cover and see them. In order to tell if you have a roller cam, you will need to pull the intake manifold where you will be able to see the “Spider” that holds the roller lifter tie-bars in place. No Spider – most likely no roller cam..
Can a roller cam be used on a non roller block?
A roller cam can be used in a early non-roller block. Most people opt for the link bar lifters to accomplish this. You can also drill and tap the block (in the lifter valley) for installation of the factory spider and dogbone setup. But going this route requires a small base circle cam.
Can a factory roller cam be used on a tappet?
The lifter bores on an EARLY block won’t take the taller factory roller lifters for several reasons. First, they are not tall enough. The factory “dog bone” retainers will be way too far down on the body of the lifter and they’ll get chewed up for sure. Second, there’s no way to mount the factory “spider” in the lifter valley to hold them down. 8.
What’s the difference between a roller and non-roller block?
I’m looking at buying an old Boss 302 block which was originally a non-roller, but the guy says it has been machined/adapted to be a roller block, but you could still use it non-roller. Would it be better to use it roller or non-roller, cause I heard a block machined to be a roller you can’t use as agressive cam? Sponsors (?)
How does a roller cam engine engine work?
A standard cam is ground in a way that causes the lifters to rotate during operation to minimize wear. This design causes the cam stay in place by itself as the engine turns. The roller cam design does operation. gear from damaging the block.
A roller cam can be used in a early non-roller block. Most people opt for the link bar lifters to accomplish this. You can also drill and tap the block (in the lifter valley) for installation of the factory spider and dogbone setup. But going this route requires a small base circle cam.
What kind of roller lifter do I need for a small block Chevy?
These are retro-fit tie-bar style hydraulic roller lifters that enjoy a good reputation for quality. This would be the best approach for upgrading to a hydraulic roller cam in an older two-piece rear main seal small-block Chevy. However, there will be other changes you will have to make.
How are rollers used in a small block?
The block was modified to accept a hydraulic roller cam arrangement using what are called dog bones to retain the hydraulic roller lifters. One dog bone was used to retain a pair of hydraulic roller lifters to prevent the lifters from rotating which would destroy the camshaft.
Do you need hydraulic roller lifters for roller cams?
Taller hydraulic roller lifters also mean shorter-length pushrods for roller cam engines compared to either flat tappet or mechanical roller cams. If you are planning on using a mechanical fuel pump with a steel roller cam, you also need a special fuel pump pushrod.
