These are the lobes from the MMX NSR cams
Int-13183 lobe xtreme energy VVI Ex-3718 lobe-extreme rpm ls1

A very good option is Comp cams LSL lobes. These are designed for G3's and LS1's and have a range from 211-275@.050" to choose from with lift still within the capability of stock rockers

Last edited by L4staero; 05/18/19 01:34 AM.