I am doing a retrofit roller cam swap on my 400 SBC.
I read here and there that a cam wear plate is required. The .030 plate (large washer) goes between the cam sprocket and the block and, presumably because one installs a cam button, this prevents the cam sprocket from digging into the block.
The plate also requires me to take the sprocket to a machine shop to machine the thrust surface down .030 to offset the clearance taken up by the wear plate.
This seems to be a new development. Eight years ago I swapped a roller cam into a 400 SBC and no wear plate was required there... just a cam button.
What are your thoughts on this ? Necessary ?
Best,
D.
I read here and there that a cam wear plate is required. The .030 plate (large washer) goes between the cam sprocket and the block and, presumably because one installs a cam button, this prevents the cam sprocket from digging into the block.
The plate also requires me to take the sprocket to a machine shop to machine the thrust surface down .030 to offset the clearance taken up by the wear plate.
This seems to be a new development. Eight years ago I swapped a roller cam into a 400 SBC and no wear plate was required there... just a cam button.
What are your thoughts on this ? Necessary ?
Best,
D.