i have just bought a subaru impreza type r 2-door. its a 1997 and has the pre facelift dash. i think its a version 4. the bottom end is knocking on the engine and i have been offered some forged pistons quite cheap. the bore size on the pistons is 93mm but im not sure if these will fit. anybody knows???

it would be a great help

 

don't forget, you'll need a new crank aswell!

 

Std bore is 92mm, 93mm pistons are oversize(as are 92.5) and the block would have to rebored and honed to suit-cost circa £100.

 

so i would have to get the cylinders re bored? hhmmmm seems like abit of a mess around but for a £100 i can live with that. im paying £250 for this brand new set of pistons is that cheap?

 

Sounds cheap what make?

 

Could be Arias Pistons if they are 93.00mm

 

this piston set is called "mahle motorsport" pistons any good?

 

yeah these are the daddy pistons , they are better than the powerpak type. these will handle 2bar all day long.