Magnum roller camshaft
Here is a stock '90 318 roller engine for comparison. (TBI setup)
Imagine it's about the same as the magnum spider setup.
You could look up the eariler roller lifters like pictured here, then look at the roller lifters for your magnum. See if that flat side on the lifter is longer on your magnum engine. Would think that has a lot to do with how much lift you can run.
Also check to see if the lifter bore castings are standing up higher on your magnum engine too. That would help support more lift.
Here is a stock '90 318 roller engine for comparison. (TBI setup)
Imagine it's about the same as the magnum spider setup.
You could look up the eariler roller lifters like pictured here, then look at the roller lifters for your magnum. See if that flat side on the lifter is longer on your magnum engine. Would think that has a lot to do with how much lift you can run.
Also check to see if the lifter bore castings are standing up higher on your magnum engine too. That would help support more lift.
