Quick one (hopefully) - I have a spare set of pistons which have a depression in them - I thought that 2l engines had flat crowns (not got mine out to check yet). Are there two types? Am I looking at lower compression pistons? Help! Yours Confused.
They could be for a stateside T4 engine. The US buses ran lower compressions to the Europeans. However the T4 engine was also available in other applications like Porsche 914/4 and T25's so they could be for them. If you have a part number, google it and it should tell you.
