[Brooksy]

Hey everyone, I've just had my 91 G13BA sierra engine completely rebuilt and I'm in the final stages of preparing everything before I put it back in, I forgot to check what plugs were in it prior to rebuild and was wondering what plugs to put in, I heard NGK Iridiums were the go, just unsure of what model I need? Also, is it worth replacing the leads? The current leads don't look too bad, no burn marks or anything.

Cheers,
Josh

[Scrawny]

NGK book says BP5ES. Iridium option is BPR5EIX but I wouldn't bother with them, they won't give any better performance or fuel economy etc

[Brooksy]

Cheers for that, did a bit of work to it on the weekend and realised it says it under the bonnet anyway haha

[Reubs]

Scrawn wrote:

NGK book says BP5ES. Iridium option is BPR5EIX but I wouldn't bother with them, they won't give any better performance or fuel economy etc

X2. They do lighten the wallet though!

[Scrawny]

I've never had an issue with a heavy wallet