LS swap for my 75

[68Timber]

Super 44's are relatively small iirc, maybe 14 or 16" case. I'll check it against mine in the morning. First guess is the mid-pipes were cut a bit short but we'll see.

[68Timber]

I dunno why they put them there, I had to look to verify but there's plenty of room to keep them away from the xfer case. Here's mine for reference and it has 14" mufflers.

[lowrodderchev]

That's were mine use to be I have no idea either. Do you think I will have a issue with heat on the t case right there

[68Timber]

It's hard to say, it might run till the end of time with no issues. Here's how I'd approach it. If it adds heat to the xfer case right there the tailshaft seal will take the brunt of it and if that fails you've got the possibility of transmission fluid getting on the mufflers. Now you're up to potential fire hazard/burning your truck down etc. I would want them to move the mufflers back. Is this a shop you've used before?

[lowrodderchev]

I've used this shop before there pretty reputable. I called them this morning he said because the flowmaster is a high flowing muffler it doesn't trap much heat and it would be ok. so I guess i'll roll the dice and see what happens LOL

[68Timber]

You'll probably be fine, just check that seal when you're under it.

[lowrodderchev]

Got her fired up yesterday. So far only two issues, not charging guessing wiring since I dont know what I'm doing and a cracked tranny line just need to put a new line she

[Ski-me]

Excellent progress and looks great in there!

[68Timber]

Congrats!

[lowrodderchev]

when I first fired her up I wasn't happy with the exhaust. sounded to weak but after running for about 15 minutes the sound changed. going to try to make time in the next few days to get the other stuff fixed. after that I'm going to satin black the whole truck just to match the old new fenders I put up front

[lowrodderchev]

for awhile there I was saying I should have just kept the 350 screw this LS swap crap. well I would like to retract my previous statement LOL I finally got to drive her yesterday and I gotta say the power is amazing. wow its a huge difference night and day. I have a few bugs to work out but I'm pretty happy so far. I'm going to start looking into a code reader just in case cause I pretty sure i'll be doing another soon

[68Timber]

Are you running the stock tune?

[lowrodderchev]

The guy who did it said they adjusted it for little more power im still working out bugs today seem like it was running hot

[lowrodderchev]

Not happy with the exhaust not as loud and aggressive as it was with the 350. Running flowmasters with 2 1/2 pipe

[68Timber]

Post a vid of it running?

[lowrodderchev]

that's what the cops said one or two neighbors agreed to that but the others didn't feel the same way. the lady is a single parent and she adopted like 4 kids. I feel bad for the kid but at the same time he did cost me a pretty big chunk of change for 2 big tires plus my wife thinks we should move because of them.

[lowrodderchev]

and so continues the bugs. I bought a new fancy toy ultragauge. yesterday I found out my temp was up to 230. the thermostat was the stock one so I traded it out this morning. i'll see how it goes.

[lowrodderchev]

this was this morning after hot rodding it all the way to work. hopefully I fixed the problem. the old one was really soft like I could press the spring down with one finger

[phillipm]

If the spring was soft wouldn't that mean it would've acted like a much cooler stat? Just wondering.

[lowrodderchev]

I was thinking the same thing but I know these LS motors run hot so maybe it's not letting the coolant cool off I don't know I'm hoping that's it

[phillipm]

I tried to see but couldn't tell. What does your cooling fan setup look like?

[lowrodderchev]

I have 2 electric fans that kick on at 190. originally one was kicking on at 190 but the other was not working right I assumed it was because I had him set it up to go on when I turned the AC on but I haven't put the AC in it yet. so I ran the wire to the fan 1 wire. my buddy said its not a good idea to run both fans at once it would take away from the air flow

[phillipm]

Originally Posted by lowrodderchev

I have 2 electric fans that kick on at 190. originally one was kicking on at 190 but the other was not working right I assumed it was because I had him set it up to go on when I turned the AC on but I haven't put the AC in it yet. so I ran the wire to the fan 1 wire. my buddy said its not a good idea to run both fans at once it would take away from the air flow

Not a good idea to run both e-fans together? Never heard that before. I promise that is what you want to do. Move the most air possible. Also, not all fans are created equal. I don't look at CFM ratings. I look at how many amps the motor is. That will tell you way more. SPAL and Cooling Components are a couple brands that make quality fans.

[lowrodderchev]

i pretty sure the bigger fan was 1350 cfm not sure on the smaller one

[lowrodderchev]

took advantage of this hot day and took the blazer out for a 30 minute drive on the freeway and slow traffic. the highest it went was 223 for maybe a minute then drop down to 220. I'm only running one fan right now. I need to find someone to program my secondary fan or see whats up with it. it not keeping a constant signal it will just sorta sputter the signal so maybe it was the thermostat