Subzero Motorsports - Bronze Valve Seat Replacement for 1.5mm Valve. For Nissan TB48 Head. #valveseat #subzeromahineshop #subzeroworks #handbuiltbysubzero #handbuilt #subzeroracing #subzermotorsports #tb48 #nissan | Facebook
Bronze valve seat installed and blended - This is a late 500 head with the 39 degree valve angle - Very happy with the results… | Instagram
![Trick Flow Valve Seat, Copper Bronze Alloy, Exhaust, 1.680 in. Outside Diameter, For Chevrolet, Small Block, 18 Degree Heads, Each Trick Flow Valve Seat, Copper Bronze Alloy, Exhaust, 1.680 in. Outside Diameter, For Chevrolet, Small Block, 18 Degree Heads, Each](https://www.vpw.com.au/assets/full/TFS-31800272.jpg?20210816182949)