I stripped down my engine last night after it had a front end impact to the cam pulleys - The previous owner had advised me the engine had been rebuilt with forged internals.
These pistons don't look like the OEM ones I've had in other WRX's & UK 2000 Turbos
Anyone have any idea what make they are? They have "HB" on the top of them



Thanks in advance

Mark

 

Standard STI pistons I think.

Tony

 

Agreed.

 

Is there anyway to find out if the whole engine is out of an STI at all??

Cheers for the input!

 

The pistons are the biggest difference, rods are the same, both blocks are open so I hope he upgraded those too (the rods that is )

Tony

 

Standard cast UK pistons by the looks of it. STI forged don't have the "HB" on the crown. The crown shape looks like newage WRX.

 

^What he said. They're cast EJ205 pistons. 99MY or newer. The "whole engine" is not out of an STi on that basis Mark. If the block has the same (or the same spec) pistons it was originally built with, the fact that it's open deck is the giveaway.

 

Thats lovely - Thanks guys - Just means I can now set my power targets realistically and safely!
Mark