P38A Spark plugs

From what I've read was the 4.6 bosch engine originally fitted with champion spark plugs? What suggestions do you guys have?

Ngk bpr6es

Tried the expensive ones and ones for LPG no difference, lasted the same time as the NGK

I thought Bosch had fancy schmancy plugs because it was thought you needed to remove the inlet manifold to change the plugs.

I always fit the bosch super4's, on all my own and clients cars, unless they are the later platinum or other fine tip plugs. They last longer also I found!
Your choice buddy.

If you can change the plugs in under an hour without crossing any threads fit ngk bpr6es .
If it takes hours and involves much dismantling and risk of cross threads fit platignums. I'm not a fan of multi electrode plugs it just extends the plug life but kills the flame wall.( Fit fine point plugs). But opinions are just that.

Fine points are usually iridium btw but not necessary on an old v8.

Not many cars use champions these days. My xjs uses them in fact they used to not run well on ngk. Champions are usually cheap.(and slightly nasty!)

Never used anything other than Champions in my four RRC's over the past 17 years, also several series LR's plus many other vehicles during my 50+ year 'driving' lifetime.This period has encompassed ownership of 4, 6 & 8cyl. engines & I've very rarely had a problem, despite the plugs often exceeding the specified replacement mileages. All my vehicles have been bog standard & I accept that modified/highly tuned engines may need uprated plugs. Interestingly I bought a 3.5efi Classic around 13 years ago & the maintenance invoices revealed a surprising number of replacement plugs to cure misfiring problems. Having checked the part nos. on-line I found they related to both NGK & Bosch products. The final set fitted had been Champs. & the car was still running well 3 years later when I sold it on.