So I probably have a connection to get a used 5.7 Vortec out of a 96 Van, and have been thinking about putting it in my 91 GMC 1500 to help get some better milage and newer technology under the hood. I know a good deal about automotives, but never really have gotten down and dirty with GMs. I also cant seem to find a direct answer on the web, since every forum online asking this same question gets answered with "CARB it!"
What im trying to find out is:
are GM blocks all the same between the older 5.7 and the newer vortec 5.7s
if they are the same, then the trans and motor mounts will be the same right?
my truck has a 4L60E trans, so im confident it will work with this newer motor, am i right?
Obviously the wiring is different, and the vortec has a much better ECU controlling the thing, will the trans still work with this motor or not?
Wiring the thing up is not a problem, im fairly familiar with wiring, but is there anything in the cab that needs to be addressed when doing this?
for fuel.... my fuel pump is technically for fuel injection, and puts out about 65psi, so the fuel pump will work right?
If anyone knows a good amount of GM info, can you fill me in. I really dont want to buy this motor and come to find it wont work.
sum it up. will the swap be somewhat easy? or is there any mind fucks that are going to get in the way if i try to do this?
Im not going to CARB anything, i hate carbs and find them about as outdated as bell bottom pants.