Replacement spark plug

Hi,

I am in process of replacing spark plugs (not faulty but cant see from any documents that i have when they were last replaced) on my 2000yr P38 4.0 V8 Thor engine, i have checked RAVE and cannot find the specified spark plugs (Champion RC11PYB4) can anyone suggest an alternative.

The plugs that are in the place at present are NGK "R" BPR5ES - should i just get a set of NGK or soemthing else ?

Any suggestions welcome

Maybe someone was on a budget. The RC11PYB4 are platie plugs and cost a few bob for eight.

this has been asked about 4 times in the last week to my knowledge. most have said stick with the NGK's