Motrhedx81
Newbie
Realized something when trying to assemble the new valvetrain components. I had read it a while back but forgot until I was messing with it. Figure I'll list it here for other folks' future refernence. The rotator eliminators will have to be modified to accommodate a couple of things...
Inner diameter: the eliminator are labeled as "exhaust rotator eliminators". The ID fits the valve guide bosses on the exhaust side just right. For whatever reason GM decided the valve guide bosses on the intake need to be about .010 inch larger diameter. This requires that the eliminator installed on the intakes have the IDs opened up .010-.015 inch.
Spring height: the comp valve springs I have list an install height of 1.900 inch. Some of the eliminators will have to be modified to get the springs to that 1.900+. On my particular heads the measurements are showing I'll need to take up to .010-.015 off the thickness of some of the eliminators.
All in all, not too bad, just another step/thing to work with.
Inner diameter: the eliminator are labeled as "exhaust rotator eliminators". The ID fits the valve guide bosses on the exhaust side just right. For whatever reason GM decided the valve guide bosses on the intake need to be about .010 inch larger diameter. This requires that the eliminator installed on the intakes have the IDs opened up .010-.015 inch.
Spring height: the comp valve springs I have list an install height of 1.900 inch. Some of the eliminators will have to be modified to get the springs to that 1.900+. On my particular heads the measurements are showing I'll need to take up to .010-.015 off the thickness of some of the eliminators.
All in all, not too bad, just another step/thing to work with.