SPARK PLUG

[paul1969cars]

What is correct or best spark plug for 1969 383

 

[bee71]

J 14y for a two barrel, J 11Y for a four barrel.

 

[RJRENTON]

What is correct or best spark plug for 1969 383

It depends.......MOPAR OEM = Champion J-11Y or P34P. But cam, pistons, intended use, or brand preference......the NGK boys have their opinion as do others......
BOB RENTON

 

[paul1969cars]

thanks

 

[Geoff 2]

NGK BP5S

 

[Dennis H]

N G K.

 

[Dave6T4]

It's now RJ-11-YC, RJ-14-YC. R = resistor; C = copper core

 

[paul1969cars]

thanks