Spark plugs for TA heads


Well-Known Member
Sep 30, 2003
Search function not working for me. I'll be running E85 and or 93 alky for street use.

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Thanks! This is for a stroked 4.1 stage II hydraulic cammed street car. XFI and TR6.
Start with a NGK 5238 and check them to see how they look after every 50 mile or so.

I have good results with them using the XFI computer and a TR6 on the street and e-85.
i have had very good luck with the NGK BR7EF (3346)..with both the stock computer, XFI, stock ign, and TR6...they are readily available at most parts stores too.