140hp 3.0 spark plugs

Rex Baker

Cadet
Joined
Apr 10, 2012
Messages
29
Hello,

Going to do new- wires, cap, rotor & plugs on a 1984, 3.0 140hp. Current plugs in it are R43T Delco, which are 5/8", taper with non-extended tip. Is that the correct plug? If not, what is the recommended spark plug/part #, please? I tried the search feature but didn't have much luck.

Thank you!
 
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