How much modification is re there to install a Small V8 in place of the stock V6 within my 2001 AWD Safari? Will it fit in the engine compartment with little to no fire wall work? Will I need to buy a new computer and such etc?
If you lift the AWD high enough, then the V8 will fit (as is) with modified lifted mounts.
Without lifting the van and engine, you would need to modify the oil pan to clear the front drive train.
An older carbureted V8 will go in pretty easy, without need for a computer.
(This is only an option in states without emissions regulations)
There is also no work needed to the firewall with the older style engine.
All the front accessories from the V6 will bolt up to the V8.
You would want to use a 700R4 trans with it.
If so, you would also need an 80's style flexplate (dual pattern) that works with V8's & 700R4's.
Easiest way to pull is by cutting top cross member support and removing engine out the front.
Brackets can be easily fabricated to reinstall cross-member support.
If you go carbureted, you'll need to change the fuel pump, or regulate pressure down to usable level.
If you go with a fuel-injected V8 engine... you will need the matching computer.
As suggested... check out the V8 section for lots of info.
There more than one way to skin this cat!
2000 Chevy Astro LS AWD | 31" LT265/70R17 Tires | 8" LIFT | 10" TOTAL
92 Chevy Astro Shorty | V8-350http://www.CruisinSouthFlorida.com