Oil-spark plug ?

[JeffV8]

What break in oil should I use ? And what spark plugs for a gen2 heads and a 12-1piston gen3 aluminator short block clone ?
thanks

 

[docs302]

In for some help with this as well.

 

[bauern]

The Gen3 uses motorcraft sp551 or sp558 while the Gen 2 uses sp548. The are identical as far as thread, reach and gap but the Gen3 has a heat range of 7 vs the Gen2 heat range of 6. Found on O'Reilly's web site.

 

[KazarS197]

I'd give Shaun a shout since he is doing your tuning. Your plug heat range may depend on where he maps the a/f mixture and timing advance. It's all going to depend on a happy medium of getting the best burn and least probability of pre-ignition.

 

[docs302]

I'm planning to go E85 so I guess Adam at Rev Auto should know since he tunes for that fuel often.

 

[JeffV8]

I'm planning to go E85 so I guess Adam at Rev Auto should know since he tunes for that fuel often.

I am too.