I cant get my 454 in because it is hitting the crossmember and still needs to go down about an inch,any suggestions?Thanx.......James

Holy sh*t i guess i am not ready for cuttin like that
 

Make me feel better did you save the old metal cut from the cab and turn it into something like an ashtray . :lol:

Boss, try a small block engine crossmember from a 73-up. Burt4x4 is using one on his and it gives good clearance. That or change to a different oil pan, assuming that is what is hitting the crossmember.

c-1072 - seems it varies on what kind of clearance problems you have. Some have to do nothing, some just have to dent in the firewall slightly. I'm still not sure why I had to make such radical modifications.

Since this post has come up again, I thought I would include pics with the engine in place.

http://yukon.b0xen.us/bbproject/bodyshopp7090005.jpg

http://yukon.b0xen.us/bbproject/bodyshopp7090007.jpg

http://yukon.b0xen.us/bbproject/bodyshopp7090002.jpg

And to show that sometimes it can be an easy fit, here is another member's Blazer that is getting also getting a big block http://67-72chevytrucks.com/vboard/s....php3?t=123151