1964 GMC 3/4 ton build :D

[sdwolff98]

Found another interesting ls mod on another forum quite by accident today . check this out cheap high mount ac bracket using existing parts from chevy. Will have to change to an older style water pump to make it happen but looks dammed promising. Might even look at some cool flex hoses and see if they can route around the bracket assembly.

Sean

below is the link to the forum where they did this Cheers!

http://www.maliburacing.com/forum/vi...p?f=34&t=79059

[trevrolet65]

That's a cool trick. So tbi 4.3, cut, shim-brace, ac lines, metering orfice, accumelater,and oil replace the o'rings? Neat.

[sdwolff98]

Yeah Friday going to get an older truck water pump on order and see what I can do with it and the electronic throttle body. Hoping it will work just need to turn the neck a slight bit and get it aimed right.

Sean

[trevrolet65]

Be carefull heating that aluminum up, once it melts it floods. Alternate top to bottem on both sides of the tube while useing the cheater pipe. Maybe put a wet rag on the motor?

[sdwolff98]

naaah will let my radiator expert do that one he does some neat stuff the pump will be off the engine when that happens .

Sean

[sdwolff98]

WOOHOOOO@!!!!!!!!!!!!!!!!!!!! Scored an 08 gmc truck engine harness 6.2 HO engine new in box from a junkyard in IL for 170 with shipping!!!!!!!! Will be in next week and will be getting lotsa pictures of it while I do the strip down and convert to standalone!!!! Harness will be in tommorrow afternoon so will have pics coming up soon of the teardown and rebuild to make it standalone.

Sean
I am attaching a pdf scan of one of the wiring schematicsI have aquired for those that are looking to do their own harnesses. This one is from a 2007 escalade 6.2 engine. I also have one for the 2008 chevy silverado and 2009 escalade if you want a copy emailed to you.

[sdwolff98]

Ok been spending a little time on the ac bracket idea and here are some more pics of what I have so far. Trying to get a used ac compressor and alternator together to get them in place so I figure out how long a belt I am going to need for this setup. I got 2 of the 3 braces done and will include some pics of them and the bracket together.


Sean

[sdwolff98]

Ok Gang,
Have the harness stripped and ready to take out the chaff have everything labled so I know what is what in this mass of wires lol. Here are some shots of this mess in my computer room.

Sean

[trevrolet65]

Originally Posted by sdwolff98

Ok Gang,
Have the harness stripped and ready to take out the chaff have everything labled so I know what is what in this mass of wires lol. Here are some shots of this mess in my computer room.

Sean

That is why you don't eat spaghetti in the computer room lol.

[sdwolff98]

Be the best kinda spaghetti when finished and the motor will run. Gonna be adding a few circuits into the firewall plug for the mil and data link cisrcuits and also the throttle pedal wiring. Definielty got a busy few weeks ahead of me. I am currently waiting on the harness tools to come in to me at oreillys so I can de pin what I dont need and canabilize it into the harness mods.

Sean

[sdwolff98]

well got the harness torn down just waiting on tools now to start taking out the connections I do not need and figuring out what the heck some of these wires go to in the scheme of things.

Sean

[sdwolff98]

will have pics up tommorrow night the engine is in the truck and with the way it is mounted the transmission brackets just about slid into place on the frame mounting locations. Little bit tight on the radiator but will know more in the next few weeks when I throw the core support back and and check things out. I am definitely going to need headers the factory exahust does not clear the frame or mounts.

Sean

[sdwolff98]

nearly finished with the fuel injection wiring section of the harness just waiting on a few parts to come in for it at the moment. Working on the mounting plate next for the injection harness. Will be throwing up some pics here pretty soon.

sean

[sdwolff98]

got the engine dropped in place couple of days ago and am working on where I need adjustments and such. Here are some pics of the work so far!

Sean

[sdwolff98]

here are some pics of the issues i am having with the exhaust manifolds from the engine going to have to go with headers it is looking like to me.

Sean

[Clyde65]

SDWolf,

Should your temp sender be before the thermostat? wouldnt it kind of defeat the purpose having it after the thermostat? Im just asking.

[sdwolff98]

Hey Clyde,
My mechanic friend said it would be fine there. So will see what happens with it I can always move it to the head ifn needs be,

Sean

[sdwolff98]

Got some more work done on the engine wiring in the last couple of days. I am waiting on some grommets to come in at the moment to start getting this setup in the cab and check the wiring lengths that I am going to be seeing on the engine. Here are some pics of what I have got done so far. Cheers!!


Sean

[sdwolff98]

Ok got the hole in the firewall cut for the harness to pass through. I cut it below the engine/frame harness in the firewall. I will prevail on my machinist to make a stainless steel filler panel to go between the two assemblies which will allow the grommet to seal all the way around the 1 3/4inch hole I cut in the firewall.

Sean

[Captainfab]

You're doing some nice wiring work.....looks like you've done it a time or two before.

If I may ask, where are you purchasing your electrical components and supplies?

[sdwolff98]

Hey Captain,
After getting some stuff from del city they got great prices but the relay mounts and the fuseboxes they sent me were mehhhh quality wise. So I went to O reillys and started catalog surfing lol. the fuseboxes they have on the floor there and the bosch relay mounts I found in the catalog and orderd they were a little pricey 16 a piece but much much better than the other set I have. I am going back friday night and pick up a 3rd fusblock and rewire the injector and coil power wires in my harness..
Lol actually this is my first time doing a injection harness so we will see. After i finish up friday night will putting power to it and see where I stand with it.
Sean

[Captainfab]

Hey Sean, thanks for the info. I'll have to check out my local O'Reilly's and see what they have. Yeah those relay mounts are a little pricey. I like the ones of that style, where the mount is secured to the body and the relay just plugs in. I have bought the Painless relay mounts from Summit before. They are that same design and are less $$ although those that you are using look to be heavier duty.

http://www.summitracing.com/search/P...yword=Painless

Originally Posted by sdwolff98

Hey Captain,
After getting some stuff from del city they got great prices but the relay mounts and the fuseboxes they sent me were mehhhh quality wise. So I went to O reillys and started catalog surfing lol. the fuseboxes they have on the floor there and the bosch relay mounts I found in the catalog and orderd they were a little pricey 16 a piece but much much better than the other set I have. I am going back friday night and pick up a 3rd fusblock and rewire the injector and coil power wires in my harness..
Lol actually this is my first time doing a injection harness so we will see. After i finish up friday night will putting power to it and see where I stand with it.
Sean

[sdwolff98]

been busy last couple of days. Bracket system is just about finished up waiting on powersteering pump to come in at the moment. Belt length is 108 and 3/4 inch outer diameter and fits nice and snug and the tensioner is right in the wear marking where it is supposed to be at. The z06 exhaust manifolds are coming along as well. I got the passenger side one in at the moment it fit without too many issues just had to remove the tin cover plate and it dropped right in place. the driver side on the other hand I am having to clearance the mount. I will be working on that tommorrow night when I get the mount pulled out of the truck and on my vise for further work. So far the exhaust touches slightly on the outer edge of the exhaust pipe mount at the end of the manifold.

Will be finishing up all this tommorrow night and dropping it in. Should have my gaskets tommorrow night also.

Sean

[sdwolff98]

well got the driver side in as well. tapped the engine mount with a hammer and it slid forward enough to clear the manifold. Now the fun part will be for the exhaust shop. The collector is really close to the suspension caps on both passenger and driver side so they will need to setup the collectors with a couple of extra bends for clearance issues.

Sean

[trevrolet65]

Maybe it will be a good thing to go with headers, might help keep the engine cooler under loads, pulling rice burners or whatever you need to pull. I'm installing the headers on mine, only because they are what I have. I got the right side on, and to tell you the truth, they do look cooler. Those manifolds look like headers. Do they turn a 90 degree at the bottem?