i saw a cream coloured 340 last night and was told this is a good place to find out about how to lower my 340 i am new to these cars and am looking for some advise ?

Hi mate, welcome. Lowering blocks on the back of 1" will lower your car by 1", " blocks will lower it 2" etc etc. Same with springs. lowering springs are available, otherwise the more ghetto way of doing it is to cut the springs. not the best for handling though.

To fit the lowering blocks at the rear you'll need longer bolts and nuts. Both springs and blocks can be bought off Dai on here. For sale section - performance parts cat.

Hope that helps a little.

Hi mate and welcome.
Good luck with the car. We all like pictures
Cheers Mark.

thanks for the help and i will put some pics up when i can work out how to do it lol