These spark plugs fit the following:
- R43N fits 69 only Big Block Chevrolet 396 427 Engines (including H. Perf. and Special H. Perf. exc. Aluminum Head option) - $100.00 a set (2 sets available)1 set is SOLD Thanks SYC
- 43N fits 65-68 Big Block Chevrolet 396 427 Engines (including Special H. Perf. exc. Aluminum Head option) - $100.00 a set (2 sets available)
- 43 fits 67-68 Small Block Z28 302 Engines - $225.00 a set (1 set available)
All these plugs are the 4 Thin-Ring design as used on the assembly line. Contact via P.M., email or call me at (508)-529-1970
Thanks,
Chris