only thing is the cam that was in the car was an SL1 cam. it was worn a bit apparently, so is that gonna make a difference in power if we put a brand new SL1 cam in as opposed to an older SL1 cam?

only thing is the cam that was in the car was an SL1 cam. it was worn a bit apparently, so is that gonna make a difference in power if we put a brand new SL1 cam in as opposed to an older SL1 cam?

The short answer is yes. Once a cam starts going away, power goes away in a hurry. So long as you follow good break-in procedures, the new cam will definitely be noticeable to you, especially coming out of the corners.

Take a micrometer and measure the old cam's lobs to see how much lift is gone. A new timing chain set is a must and while almost impossible to degree while in the car, there are ways to do so.

If the wear of the old cam was significant, change the oil twice to clean out the oil pan. If you have a magnetic oil drain plug it will help pull all the particles to the drain port.

thumbs up wesley!!! btw steeve if you looking for serious power, pick a cheatin cam n have #2 lobes ground to .410.....they normally only check that cylinder anyway lol. not that anyone has ever done it....

I also hope that new lifters were used. If the old ones were reused - they will quickly eat the new cam - say in about 20 minutes....

There's a long history with the SL1 and SL2 cams... but that's for another post... it's truly an epic and in a sense, it's amazing that cam "rule" is still around...... 🙂 There's more than a few war stories regarding these small block Chevy cams...

they really should do anyway with it, the rule costs typical guys more than a normal hi perf cam, and there is only so big you can go on a 9 to 1 mill anyway...