Spark plugs

[yoss]

Hi
A quick question, looked on the web site FAQ for monaro cv8 plugs, BCPR6ES-11. These come with a sealing washer.

ON removing the first one I find it has a tapered seat (no washer). Are they interchangeable?

Cheers Yoss.

[Lincsls1]

Hi.
I seem to remember reading something about this.
I believe the flat faced washer type plugs are what gets fitted over here in the UK, the tapered seat plugs being a US thing.
Perhaps your plugs are original hence tapered, its a US engine after all.
In the search function type "Monaro plugs tapered", it will bring up plenty of threads relating to this. Read up and make your own mind up.

In short, I think you can fit 'normal' plugs.

[yoss]

Yeah thanks, have looked on the "monaro plugs" site . Seems all good to fit the normal ones.

Have to much spare time at the moment!!.. as its just on 100,000 mls i've changed oil n' filter then swop the plugs.

Yoss.

[stevieturbo]

Normal plugs work fine.

No idea why the US like taper seat.

[Boosted LS1]

It's to stop them forcing them into the piston crowns with their air guns.

[maccavvy]

i got iridium from rock auto . very cheap in comparison to uk prices. fit and leave alone for 40k

[OversizeTigra]

Same, AC Delco 41-110, although I had to search for the part number because searching by vehicle brought up a different number for some reason.

[maccavvy]

[Lincsls1]

AC Delco 41-110 fitted in my 04VXR.
Listed on my AAS service sheet. Engine appears very sweet on them.

[motomk]

OversizeTigra said:

Same, AC Delco 41-110, although I had to search for the part number because searching by vehicle brought up a different number for some reason.

I think there has been a number change recently as I was searching for them the other day and they were hard to find.