5.3/4l60e swap into my 1981 C10 Stepside

[Captkaos]

for the 03?

[nucknoel89]

for the 03?

Yeah, for the 03.  I need to figure out what I have to tie into my current harness.  Other option might be to get a fuse block that matches the engine and then tie the rest of my truck wiring into the new harness.  What would you guys recommend?

[team39763]

What's your plans for the motor and the truck?  Cam swap? Bolt ons?  Planning to race or anything?

I know Nelson Perfomance and a few others can tie the 5.3L harness into your stock truck harness, but I forgot the price.  I can't remember the other places that do it, but there are a bunch.

[nucknoel89]

What's your plans for the motor and the truck?  Cam swap? Bolt ons?  Planning to race or anything?

I know Nelson Perfomance and a few others can tie the 5.3L harness into your stock truck harness, but I forgot the price.  I can't remember the other places that do it, but there are a bunch.

Probably a cam swap down the road.  It's my daily driver though and I need all the smog stuff cause we have emissions testing here in B.C.

[nucknoel89]

Went to the wrecker this morning and got myself a 4l60e, y-pipe, and fuse box for $925 Canadian.  I'll post pics later when I get home from work.

[nucknoel89]

Here's the pics as promised.  Anyone have a guide or map or whatever as to what each fuse is?  The fuse box is also from an 03.

[Captkaos]

I don't have one for that year, but you can get a tech at the dealership to print the schematics out.  I got a Painless harness for mine.

[heavychevy91]

Heres a pic of one from our '03 Suburban I would assume theyre the same. Hope this helps

[nucknoel89]

heavychevy you are my hero!   
Anyway here's a pic of the engine in.  Didn't take too many cause I don't have a camera, just a BlackBerry.

[heavychevy91]

not a problem. Looks like you making some pretty good progress

[nucknoel89]

Is there some sort of trick to getting the dipstick tube out?  It seems stuck in there and I can't get the exhaust manifold totally free without removing the dipstick tube.

[1984gmchighserria]

Twist and pull? Worked on mine

[autorepr]

Cool!  Looks like you are moving right along. I have one little suggestion to add to the mix....... I have been replacing quite a few intake gaskets on these motors for vacuum leak issues/rough idle lately. You may want to slip a new set in while it's out in front of you?

[nucknoel89]

Cool!  Looks like you are moving right along. I have one little suggestion to add to the mix....... I have been replacing quite a few intake gaskets on these motors for vacuum leak issues/rough idle lately. You may want to slip a new set in while it's out in front of you?

Thanks for the info.  I'll probably get that replaced before the front end is back on.  And for everyone, a few questions.  First, where does the brake booster connect?  Second, for the wiring, would it work to split the power from the starter between the 2 fuse blocks?  Like run the engine off the 03 and all my other non-engine stuff off my original?  And about fuel; I can get the lines off an 03 at the wrecker, what kind of adapters do I need?  I have the sender and pump from a 91 Blazer.  And with the sender, there's 3 small tubes on top which I assume are send, return, and evap, but there's also a fourth tube that's much bigger.  What is it?

[nucknoel89]

No pics at the moment but I put my ECU where my charcoal canister was.  I bent the bracket to fit around it and then ziptied the ends of the bracket.