I needed smaller shims so I could use the OEM springs and valve rotators. I had problems finding a source for the shims. Eventually found them at Competition Products, Inc. The .015" shims are #30315 and the .030" shims are #30330. I reused some of the larger shims that came with the heads. But Competition Products has a number of other shim sizes too. So you can mix and match them as needed.
No portion of this page, text, images or code, may be copied, reproduced,
published or distributed in any medium without the expressed written permission
of the copyright holder.