AC Delco Spark Plugs Of Course

[JamesSam]

I want to buy a backup set/soon to swap set of plugs. I want AC Delco and want to know wat would be the best current version since AC Delco is the OEM supplier for this type part. 1987 TBI 350 4x4. What y'all got for me?

 

[Grit dog]

Whatever is called for for your motor.
I think most small blocks run R44T or TS. 43 or 45 if going a little hotter or cooler heat range.

 

[SquareRoot]

Odd topic for the Exterior forum

 

[JamesSam]

Odd topic for the Exterior forum

Aftermarket Accessories. I should have picked Engine And Performance. Doh!

 

[fast 99]

R44TS or R44T are normal pass

CR43T or R43T used in HD trucks.