Replacing the straight 6 with a fuel injected 350

[bagged69c10]

Does anyone know a what I would need to put a fuel injected 350 into a 1966 c-10?

[jasonrmorrow]

That is a very very vague question...

do you have a complete running driving donor vehicle ??
do you just have an engine, do you just have the EFI manifold ??

give us some more information, what is the engine from.

[bpmcgee]

Here's what I can tell you for a start:

You'll need the V8 side engine mounts, and (probably) the larger V8 radiator. You'll have to mount a fuel pump on the frame rail under the cab.

Those are the basic things you'll need to adapt your V8 to the truck. You'll also have to figure out whatever you need to get the engine running.

All in all, it's not very complicated.

B

[bagged69c10]

I think its out of about a 1994 or 96 Buick Roadmaster Wagon. It is a complete car so I can take whatever I need. Ill get more info. My main concern is the wiring. Does anyone know what to do about gauges?

[bpmcgee]

Tach is universal -- negative wire of the coil, unless you don't have a coil.

Coolant Temp is a challenge (unless you have an idiot light), the standard sensor will be different resistances. You can get the hole tapped for the old style sensor, or build an adapter array.

Brian

[jasonrmorrow]

Gauges shouldn't be a problem, my autometers worked with my Carb and EFI engines, but i just swapped an intake onto my exisiting engine.

I don't know for sure what EFI system they used on it, some sort of MPFI...

Having said that, i did a quick search and...

http://www.thepartsbin.com/sitemap/b...ess~parts.html

http://performance.drivewire.com/fue...ectionkit.html

This harness is available at summit for 609 instead of $895 so thats a good thing !

$609 bucks for a harness though...ouch, if you have the entire engine harness from the car you could "thin" it out to meet your needs. If you think it will take you less than $6094 in time and frustration.

To compare, the much more common TPI swap harness is $321.

So its an Lt1, Lt4, something like that, MPFI sequential fire, roller block, should be a nice setup !! Much nicer than my TPI and i love it.

My harness was from painless and it was easy to install, i'm also an automotive apprentice at a Toyota dealer so i work with computers and wiring all day, so depending on how comfortable you are with wiring, it could take an weekend or 6 months to get the engine to fire up, once the mechanical duties are fulfilled.

You are probably looking at custom engine mounts, upgrading the transmission, the LT1 is meant to work with a 4l60E. Running new fuel lines, finding a high pressure fuel pump, either put it in the tank or run an external one.

Run electric fans, the ecm will control them. Get a custom chip burnt for your application. Decide if you want to save emissions stuff.

There is a lot to do, but its worth it, EFI is leaps and bounds ahead of carb technology, and its been trouble free for a year and once you install it YOU CAN FIX IT !

Talk to "LT1burb" i think is his name...he might be over at chevy talk only.

[bpmcgee]

Jason,

Small blocks were an option in this year trucks, and the mounting points haven't changed. All he'll need is the V8 engine mounts for his truck.

My personal recommendation would be an early 90's Vortec engine. The vortec heads are about the best you can get for that generation, it may already have a TBI manifold on it and roller lifters. The block itself will be basically the same as the '60s block, so he won't have to worry about bell housing patterns or reverse flow plumbing or anything.

B

[bagged69c10]

I will be taking the trans as well. What really confuses me is the wiring. I will be able to take all the wiring and computer out of the car. Is there someone that could make that stock harness work with the 66.

[kwkenuf]

LT1 swaps are real straightforward. Standard small block chevy V-8 mounts, and slide your tranny crossmember back for the 4L60E and there she sits.
One problem you'll have to overcome is the 4L60Es that came behind LT1s had no mechanical drive for the speedo, just a VSS for the computer. Two ways around this... convert your speedo to an aftermarket electric one or retrofit a speedo drive into your trans so you can have both VSS and a mechanical speedo. I've done it both ways. See my Camaro web page for the LT1 swap details.
The wiring you can do on your own if you have the complete LT1 harness or you can buy one from Painless, Speartech or a number of other companies. I did mine myself, the first swap took a while, the 2nd was much quicker.....

[bagged69c10]

Its not an LT1. Its just a fuel injected 350 from a 1992 buik Roadmaster.

[kwkenuf]

Originally Posted by bagged69c10

I think its out of about a 1994 or 96 Buick Roadmaster Wagon. It is a complete car so I can take whatever I need. Ill get more info. My main concern is the wiring. Does anyone know what to do about gauges?

Originally Posted by bagged69c10

Its not an LT1. Its just a fuel injected 350 from a 1992 buik Roadmaster.

Well, now that we know it is different from what you posted earlier.....
This swap wil be even simpler yet (but underpowered....)