Can anyone please tell me the correct size/threads, etc for 1978 FJ40 2F engine? The air rail is coming off this weekend for a set of Downey headers (without the EGR fitting), and I'd like to source appropriate plugs beforehand. Thanks.
Looks like a search reveals 1/4 NPT?? So...never mind!! Thanks anyway...
Looks like a search reveals 1/4 NPT?? So...never mind!! Thanks anyway...