Spark plug recommendations.

[70droptop]

What plugs would everyone recommend for stock 66 426 hemi. Also what oil. First hemi I've owned,long time coming. Thanks

 

[rickseeman]

Champion N-10Y was stock but they aren't available anymore. You would have to ask the parts store to convert that to the brand you are going to buy. Old engines use heavier oil. Probably 10-40 minimum. Or straight 40 weight. Take your pick.

 

[rickseeman]

Google says NGK BP6ES

 

[70droptop]

Thanks, I heard n- 10y were no longer available didn't know if anyone had brand preference. Also heard some were running 20w 50 valvoline vr1 seamed a little heavy to me.

 

[Dennis H]

NGK’s.

 

[rickseeman]

Also heard some were running 20w 50 valvoline vr1 seamed a little heavy to me.

Wouldn't seem to heavy to me at all if your engine has some miles on it or if you have low hot idling oil pressure.

 

[not so famous bob]

Champion N-10Y was stock but they aren't available anymore. You would have to ask the parts store to convert that to the brand you are going to buy. Old engines use heavier oil. Probably 10-40 minimum. Or straight 40 weight. Take your pick.

good luck on the parts store bit ...

 

[Geoff 2]

NGK 5s would be even better if it is a street driver.

 

[WileE]

From doing these services back in the day when these were just regular cars, we would use 10w40. Depending on the owners intended use and time of year, occasionally 20w50. Start with stock equivalent plug, then go from there depending on results.

 

[not so famous bob]

NGK 5s would be even better if it is a street driver.

I still haven't found any ngk5`s , summit didn't have them or o`reilies ,quit looking after that...

 

[Geoff 2]

I buy them off the internet.