Where to get 4" blocks for a Rockstar

Im looking for some 4" lowering bocks for the rear of my 49 Chevy coupe.
In a previous post some said chevs of the 40's had them but i only found 3" on their webpage. Where can i get 4" lowering blocks at?
Matt

 

Come on sombody knows where i can get some of these i know.

 

Speedway has them.

 

you will find that 4" is too much unless you C-notch the rear frame
also drive line tunnel interfearence issues..
3 or maybe 3.5" is about all you can get with out your axle slaming into your fame..or having scub line issues

 

I wouldn't do 4'' blocks, you will be way below scrub line. On my 51 I am running 3'' blocks and I pulled two leafs out of each side and it dropped it about 5'' with no scrub line issue. If you only want to go 4'' then just pull one leaf out of the back.

http://www.jalopyjournal.com/forum/album.php?albumid=2404&pictureid=51269

 

didn't chevygirlrox have a similar thread on this?

 

yeah i think so
its a subject thats been beat to death on here..alot!

 

How do you pull the leafs out?

 

I had 4" blocks made at a machine shop. They work for me. I have air shocks which help a lot and my springs aren't stock either.