Chevy Hi-Performance Homepage
Prev Next
With all our valves and valve guides good to go, it was time to check out the valve seats in our subject heads. Alvarez began the lapping process by giving each valve seat a coat of blue layout dye, then each valve a layer of lapping compound. You don't want to overdo it here, since this substance must be totally removed before final assembly.
Performance Head Build - Some Assembly Required

With all our valves and valve guides good to go, it was time to check out the valve seats in our subject heads. Alvarez began the lapping process by giving each valve seat a coat of blue layout dye, then each valve a layer of lapping compound. You don't want to overdo it here, since this substance must be totally removed before final assembly.  View Related Article