What plugs for EJ257
 

What spark plugs are needed for EJ257 block with standered heads do i use the pfr6b's or does the plugs need to burn hotter for the bigger block.:thumb:

ILFR6B are std. ILFR7H are one step colder. 2.5 heads use long nose plugs.
PFR6B are for 2 litre heads.

what if im using standered heads do i use the pfr6b's

what turbo and other mods etc..

generally.. upto 300bhp ngk pfr6b and beyond ngk pfr7b and beyond 450bhp racing 8s etc,.. give or take a bit..

you haven;t said what the standard heads are for / from.. but assume 97/98 heads from profile picture?

Simon

standered my00 heads ,TDO4 turbo

ngk pfr6b or ngkpfr7b then.. ie. 2litre plugs as you have 2litre heads.

Simon