projectresto83

Anyone know which 302 trick flow head might use a motorcraft 42C spark plug????

I do not know the specifics of the car nor does the current owner or I would find the answer myself...a new friends car that has many issus. He did a tune up not to long ago and the car runs like crap. It has trick flow heads (IDK which ones yet), performer intake, 70mm EGR and throttle body, stock MAF, cam (maybe a TFS stage 2), ....yada yada yada...

again, question is....motorcraft 42c..is it recommended for ANY trick flow head??????

AdderMk2

tell them to pull the part number or model off the heads. It should be cast right into the end.

tinman

Or,
go to a good auto parts house and look in the big print book that Auto-lite puts out.
In the very back of it every aftermarket head thats ever been made has listings in there for what plug(s) they can use......