www.iFourWinns.com

I know there was some debate on what plug is used on the 5.0 GXI. I just changed mine and it had ACdelco part number 41-993. Also in case know one has checked there cap and rotor on the same engine I check mine while I at it and they both quit corroded. I am going to be replacing them. I have 115 hrs. on the boat right now. Plugs didn't look all that great either.

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1998 Baja Boss 252 7.4L MPI Bravo 1 (SOLD)
2007 FW H200SS 5.0GXI (Sold)
2004 Chevy Silverado 2500 Crew 6.0L (tow vehicle)
1991 FW 170 Freedom 4.3L (SOLD)

Make sure you use the "M" version of the plug. The difference is the body of the plug is stainless I was told. Also, don't scream too loud when you see the cost of a distributor cap....

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Jvalich
http://www.badcock.com

'04 FW 288 Vista "Mental Floss"

There is no "M" version of this plug that I aware of. I am fairly sure that the AC plugs are stainless anyway. At least the look like it. Yeah $100.00 for a cap and rotor is a little much, but what cha gonna do.

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1998 Baja Boss 252 7.4L MPI Bravo 1 (SOLD)
2007 FW H200SS 5.0GXI (Sold)
2004 Chevy Silverado 2500 Crew 6.0L (tow vehicle)
1991 FW 170 Freedom 4.3L (SOLD)