4.3 swap

Printable Version

Blazer Forum >> Mechanical & Maintenance >> Engine & Transmission >> 4.3 swap

Page: [1]

Login Message << Older Topic   Newer Topic >>

4.3 swap - 10/24/2007 3:14:44 PM    mightymouse713   Posts: 3 Joined: 10/24/2007 Status: offline Will a 1997 4.3 motor drop in a 1994 Blazer w/4.3 Liter 4 wheel drive? just curious Post #: 1

RE: 4.3 swap - 10/24/2007 3:48:29 PM    swartlkk Posts: 15286 Joined: 5/1/2005 From: Waterloo, NY Status: online Induction systems are completely different.   _____________________________ Kyle- My Restoration Projects Please Do Not PM for Tech Help (in reply to mightymouse713) Post #: 2

RE: 4.3 swap - 10/24/2007 5:03:33 PM    mightymouse713   Posts: 3 Joined: 10/24/2007 Status: offline So, is the modification to make it work worthwhile? I have all parts available to me from the 97. Thanks! (in reply to swartlkk) Post #: 3

RE: 4.3 swap - 10/24/2007 5:10:32 PM    swartlkk Posts: 15286 Joined: 5/1/2005 From: Waterloo, NY Status: online You would have to integrate the '97 PCM into the older vehicle and that is even if it is possible to just do the PCM...  Your truck either has the TBI (round air cleaner) or CPI (large aluminum intake plenum with a black plastic cover and orange 'Vortec' lettering).  Either of these fires the injector(s) in what is called a batch fire method where the SCFI (96+) motors use an injector for each cylinder and fire them sequentially.  The electronics in your '94 wouldn't know what to do with the SCFI induction/injection system.  Also, you would have to modify the exhaust to be able to have the required number of O2 sensors.  Then there is the fuel line hook-ups. You would be better off just using the long block and swapping over your intake and any other components that are different. < Message edited by swartlkk -- 10/24/2007 5:11:50 PM > _____________________________ Kyle- My Restoration Projects Please Do Not PM for Tech Help (in reply to mightymouse713) Post #: 4

RE: 4.3 swap - 10/24/2007 5:25:22 PM    mightymouse713   Posts: 3 Joined: 10/24/2007 Status: offline So I can use the longblock from the 97 and put all of my components on . That seems worthwhile since the engine is free. Thanks! (in reply to swartlkk) Post #: 5

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Chevy Blazer Prices

Chevy Blazer
Trailblazer SS

Top 10 Posters
swartlkk 15286 drperry 3926 hanr3 3523 chevy lover 3411 m00nwater 3269 eurogoldls 3121 wolfpack 3071 paddle_grl 2952 hillbillyino 2887 xblazer01 2659

New Vendors
AMSOIL - Performance Oil Technology