Very true, same manufacturer. I know jbrew HATES the Autolites for his 5.4, which is a 98 (pre PI head). Had some bad issue, as did a few others I believe. People on the Ford 460 forums recommend Autolite AR-33's I think for the big blocks which I'll be using in mine next once I burn my Motorcrafts out! I actually just bought NGK TR-6's for when I put the blower on my truck. Autolite's are good OP, if they worked fine for you, go for it.

 

Use anti seize on the plug threads. Use electrical grease on the COPs. Your local parts store has these in little plastic packs near the register.

Get a set of 3/8" locking socket extensions and a ujoint. The locking extensions will keep you from losing a socket in the head.

When you pull the fuel rail some orings will be left in the rail. Carefully remove them with something that cannot scratch the rail (not a screwdriver). Put the orings back on the injectors before you reinstall the rail.

The COPs just unscrew and come out. They are probably the easier part of the job.

 

thanks! the only thing i've done plugs on before was my old 5.0 F150. this truck has 175k miles on her, and i dont know when, if they've ever been replaced. i dont think it NEEDS to be done, but i also dont think it could hurt

 

Do *NOT* use antiseize in the 4 thread 4.6 and 5.4 2 valve heads! The recommended Motorcraft plugs are nickel plated, designed for aluminum heads, put them in DRY and torque them to 28 ft/lb.