Chevy 5.7 swap?

[morgan85]

Was looking at doing a chevy 5.7 swap and had a few questions.

1. What is best year engine to use?

2. Best year to use for a nv4500?

3. Will the dodge adapter from AA fit the chevy for the toyota t case?

4. If dodge t case adapter does not work for chevy trans, who makes one?

5. Did any trucks with the 5.7 come with a nv4500?

6. Did the 5.7 have any wheel speed or vss components, or is it all MAF/MAP sensor?

7. If it does have a vss/wheel speed sensor what is the fix mod for that?

 

[dbleon]

to the best of my limited knowledge...

1. newest = best
2. newest = best
3. yes
4. ?
5. yes
6. yes
7. jags that run .com or others

 

[Elbert]

in 5.7 flavor probally the 97-99 vortec engine from pickup-suv, for less complexity and still fuel injection TBI 5.7 is good.
yes GM sold 5.7 with nv4500... don't know the year models....1 ton with manual 5 speed
yes fuel injection engines generally have a VSS of some type that needs to be operational

Go look around the advance adapters web site for more info.

I have the old downy vss adapter that is not made any more.

 

[morgan85]

Ok thanks for info. Would like to go with vortec engine. Was wondering if they did vss through transfer case or hub assembly?

Also with newer engine like 2000-2005 can I use a stand alone fuel pump or do i need to mod a chevy in tank pump?

 

[KWalkerM]

Ok thanks for info. Would like to go with vortec engine. Was wondering if they did vss through transfer case or hub assembly?

Also with newer engine like 2000-2005 can I use a stand alone fuel pump or do i need to mod a chevy in tank pump?

I use an external electronic fuel pump on the passenger side inner frame rail and it has worked perfectly for me with no problems. here is my basic tech specs for a SBC 5.7 chevy. some info isn't right as I just swapped motors

V8 Conversion Info​

Engine 1987 Chevy ¾ ton PU C20 350 TBI
Transmission 1988 700R4
Ignition Wiring #7085 AC Delco (push start) #7850 (OEM)
ECM 1990 Chevy TRK Serial # 1227747
Fuel Pump AirTex E8094 (15-20 PSI)
Fuel Filter Fram; Front G4777, Rear G12
Air Filter Fram; CA326
Water Pump AirTex AW1121
Air Conditioner 1989 Chevy Caprice 305 #1131616
Clutch Pulley # 261285
Belt Gates 7555
Starter Solenoid 55251
Alternator Belt Gates k050435
Radiator Aluminum Radiator (Man-A-Fre)
Top Hose, Gates 20919
Bottom Hose, Napa 7579
Spark Plugs
Oil Filter Fram High Mileage HM5
Power Steering Belt Gates 7385
Motor Mounts Anchor; Upper 2048, Lower 2050
Radiator Fan Clutch Four Season’s 36956; Hayden 2797
Oil Pressure Sending Unit OEM
Brake Light Switch Painless Performance Wiring Kit; 1989 Chevy Caprice
Exhaust Manifold 89 Chevy Caprice

 

[Elbert]

Ok thanks for info. Would like to go with vortec engine. Was wondering if they did vss through transfer case or hub assembly?

Also with newer engine like 2000-2005 can I use a stand alone fuel pump or do i need to mod a chevy in tank pump?

Well I guess first you need to decide which SBC you plan to use...5.7 or one of the new engines like the 5.3, 6.2, 6.0.

There are different ways to do VSS, some use an adapter driven off the speedo cable (manual trans), some use an adapter that mounts to the rear of the transfer case or make their own.

Generally most people use an external electronic fuel pump like the walbro, some have modified a setup to use an in-tank fuel pump.

Search through the threads using the key work "engine swap"...

 

[Elbert]

If I were to do my swap again... I would do this:

SBC V8 with matching GM auto transmission + AA adapter to mate with FJ60 split transfer case, or some variation thereof...consisting of the SBC plus GM auto transmission.

 

[Ridge Runner]

If I were to do my swap again... I would do this:

SBC V8 with matching GM auto transmission + AA adapter to mate with FJ60 split transfer case, or some variation thereoif...consisting of the SBC plus GM auto transmission.

I just bought a '90 Chevy 3500 4X4 with a 454 to use as a shop truck. Looks like it's going to get the NV4500 I had earmarked for my 60 to replace the SM465 that's in it. I had been dead set against making my 60 an automatic, but this would give me the opportunity to put a later model column with a shifter on it and possibly replace the clutch pedal with a parking brake. Why? To get rid of the hand brake and free up space for a wider, more modern center console, thus making more room for gun storage. And I'd have cruise control.

Also, the biggest reason I'm reconsidering the NV4500 in my 60 is the sloppiness of the SM465 compared to the H42. Big difference.

 

[lehiguy]

For pure reliability, the older TBI motors (most '87 to '95 5.7s) were superior to their port injected cousins (most '96 to'99 5.7s). They were not particularly wonderful for power output, but that is easily remedied, unless you are after a drop in affair that you will not have to build or modify. I am personally uncomfortable with straight drop-ins unless you own the donor vehicle and know of a surety that it is a solid motor. The Vortec engines did, however, come with some desirable features, like roller lifters and the best production cast iron heads GM ever made. I used those parts and put a modified TBI system on top of that. Cheap, effective, super reliable, easy to find parts, easy to trouble shoot, lots of power.

 

[norsk]

then there is my plan of Gen I SBC, add in roller lifters, torquer cam, and GMPP Vortec heads (Version 2). quadrajet carb - still putting it all together and no computer

does depend on your emissions requirements where you live - none for me here

dougbert

 

[lehiguy]

Funny thing, just last night at the Cruiser Outfitter BBQ I was telling Norsk that my FI setup has never achieved better mileage than my Rochester did. If you have the skills and/or resources, I am a fan of simple, which means carburation. If I build another rig, I will stay old-school Rochester. No computer, no laptop, just needles, jets and the tried and true butt dyno.

 

[morgan85]

What I would like to do is a obd2 vortec 5.3, 5.7, or 6.0 with a nv4500 trans. Going to re due wiring harness. Use speed hut speedo, oil, temp, tach, and volt gauge. One thing would like to know what people have used for vss?

 

[Elbert]

I think marlin has a VSS on their web site (I noticed in one of their emails) another place called "jags that run" apparently has some VSS as well.

Back to square one....I believe the different GM engines expect to see a different VSS signal...(4 pulse or 2 pulse...I've foregotten). Either way a 5.7 TBI engine may not use the same VSS signal as a 6.0 Vortec.
I believe the auto transmissions have a VSS port (GM)... while I don't have a link that comes to mind I believe a number of hot rod type sites are carry VSS sensors etc nowdays because a lot of people swap entire engine assemblies into their old school car/truck of choice.

Some people will tell you VSS can be programmed out...maybe so. I've not seen one first hand so I don't know how well that works.

as far as the actual vss sensor.. I'm using the GM VSS sensor that matches my 1999 GM 5.7 SBC, it mounts into a special adapter (that is no longer made) by downey. The adapter itself mounts on the rear of the transfer case.

I've seen various VSS soulutions, some of which are simply an adapter that goes inline on the speedo cable and that is the VSS...

My stand alone engine wiring harness has a plug / wiring that mates with the GM VSS sensor.

 

[ntsqd]

There is a thread about a how a guy made his own VSS to go on the rear of the t/c. I do not recall the title of the thread, but a search should turn it up. Involved some welding and fabrication as I recall, but was a fairly simple approach.

 

[spotcruiser]

Not difficult. Make a housing to fit the rear cover of the transfer case and mount a stock sensor in it. The reluctor is installed on the shaft in place of the rear spacer.

 

[Elbert]

The old out of production downey product looks similar to the above pics. I dont' have fabrication skills but that is a proven solition if you do.