LS Spark Plugs

[Walford]

What plugs are you using in your LS Chevy engine
am not making massive power and am happy to change them every year
alot of the stuff on the web is US or Aussie numbers that dont mean much in the UK

[spartridge]

No idea - assuming standard GM as LS7 was crate - can ask on Monday for you as over at Topcats if that would help?

[tinker-27]

Ngk tr55 or Ac delco or bpr6 you can use taper seat it flat , they don't need to be anything fancy , I use bpr8 (£2 each)in my motor but 6 grade for a NA motor I have a few part numbers at work if you need them give me a ring

[blackiepaul]

Standard, AC Delco. I am at Topcats now getting some upgrades.

Edited by blackiepaul on Tuesday 23 October 19:19

[Walford]

Sorted Thanks my heads were not machined by GM
Quote
Hello,
I am the tech manager at Autolite spark plugs.
The stock GM head has a tapered seat plug

Most all aftermarket heads use a gasket seat plug.

We have an extensive lookup of recommended plugs on our website for nearly every aftermarket head there is.

Edited by Walford on Saturday 3rd November 08:30