xrav22

Hi there my Buddy wants me to put in new spark plugs and I keep getting warnings about may not be compatible.
What is the goto plug for the 5.7 1974 engine?
I see ACDelco R45TS listed some places and not others.
Also a goto cap and rotor?

Thanks alot

ntfday

I run E3's in my basically stock '76 350 and I'm very satisfied. Cap and rotor need to be high quality with a high dialectric strength to prevent cross firing.

xrav22

Thanks for the tips I think I can grab some parts now.