While pricing a new cam - the DC engine book says I need these springs.

krazykuda said
Find out the specs for that spring and then go to an aftermarket manufacturer and get one to match (or in that ballpark)...

Also: Word of caution, we installed the 273 rockers on a 340 and I had to grind some clearance where the rocker hit the spring a little bit... Mock it up and check your set-up... Not a show stopper, but it's good to grind a little to get clearance to the spring...

A quick hit on a bench grinder will do it...
Click to expand...



This sounds like a time when a B3 shim kit would fit the bill.

Unless you have a spring diameter of 1.687, and even then it still shouldn't need to have clearance ground into it.

If the geometry is correct, the rocker and the spring almost never ever hit. They can't.