These Valve Seat Inserts are sized to fit popular valve seat dimensions. They are designed to effectively dissipate heat for consistent valve sealing. Each seat insert has a radiused edge for easy installation and they will harden during engine break-in.
AV&V Valve Seat Inserts have been discontinued by Goodson so they are subject to stock on hand. Kibblewhite Valve Seats are replacing the AV&V inserts.
Kibblewhite / AV&V Crossover
10-SC340 / MVS-42
10-SC430 / MVS-58
10-HC462 / HVS-1820
10-HC414 / MVS-50
10-HC494 / HVS-1945
10-HC573 / HVS-2257
crossovers unavailable for MVS-18, MVS-46, MVS-54 and HVS-1880