47-55.1 Help locating a 5.3 in '51 3600

[youngrodder]

Originally Posted by torchlight

I don’t know if the frame is different on the 3600 but on my 53 3100, we were able to get a 5.3 LM7 and a 4L65E in there without cutting the cab. Might depend on your IFS crossmember though (I used Scott’s Hot Rods IFS). Also, I used Camaro/Firebird front drive brackets, which saved some room. CTS-V pulleys would be even better. Electric fan, of course. Used the standard 5.3L truck oil pan.

Should be some good info about my setup starting on this page (but read the next page after this one also):

http://67-72chevytrucks.com/vboard/s...=541111&page=4

I'm running a Porterbuilt front drop member and I too fit an LS without cutting the floor or firewall in my 53 Suburban. I mocked up with a poly LS block and 4l60e trans to confirm fitment. I'm using an F-body oil pan and a Holley front drive. Your motor mounts will play a room in if you need to cut your cab as well.