454 Identification ?

[AZ_Overdrive]

FINALLY found a 454 to put in my 89 Burb. Complete motor, all brackets, accessories, and wiring from an 89 1 ton. I need a little help identifying the block. Here is what I found for a block number 1401544:

1401544, 1975-87, 454 truck

So, what type of block is this? Mark IV?

Also, does anyone have the vacume diagram for an 89? The yard cut a couple of the lines and unbolted the accessories.

Been researching this swap for a LONG time. I think I will take lots of pics and post a writeup about it.

Thanks for any assitance.

 

[4X4HIGH]

That would be a mark IV engine.