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03-17-2016, 11:23 AM | #1 |
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Join Date: Dec 2011
Location: visalia ca
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ls swap for a 75 k5 blazer
So I've read till my eyes hurt and read more. I'm learning there's alot of homework in this swap. So far I have a 2001 5.3/4l60e (180,000 miles)and a np241 case. If I'm correct I should do a 87 blazer tank, stock sending unit, walbro 255 pump with 33737 regulator. Miss anything?So should I do steel lines or braided? And I'm still confused about the radiator steam pressure. Any help is very appreciated. Thanx in advance
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03-17-2016, 01:38 PM | #2 | |
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Location: Pflugerville, TX
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Re: ls swap for a 75 k5 blazer
Quote:
Here's my fuel setup (on a crewcab, yours would MUCH shorter. ) |
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03-17-2016, 10:58 PM | #3 |
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Re: ls swap for a 75 k5 blazer
yeah that looks good thank you. wouldn't happen to have any pix of your steam setup would you?
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03-18-2016, 12:46 AM | #4 |
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Re: ls swap for a 75 k5 blazer
Subscribed!
I too would like to see the steam port on the back of the fuel pump. I actually pulled a spare pump off yesterday to attempt this exact thing. I look forward to seeing this. -Izzy
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WHO_DCTC - Wifes 05 Z-71 Build - Now defunct as she decided she wants an Escalade too Cream Puff - LS'd Square - Slow going on the back burner Tripple Threat - 3 Wrecks for the price of one build thread Project Delongdium - Step-Sons Plastic Clad 2003 Avalanche - DONE and Delivered. |
03-18-2016, 05:02 AM | #5 | |
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Re: ls swap for a 75 k5 blazer
Quote:
Also, to the OP, If your engine is an 01, you will have a return style fuel rail and dont need the corvette fuel filter, just a regular filter will do.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
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03-18-2016, 09:25 AM | #6 |
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Re: ls swap for a 75 k5 blazer
Smart ass! It was late!
But your absolutely correct, probably wouldn't run very well either.
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WHO_DCTC - Wifes 05 Z-71 Build - Now defunct as she decided she wants an Escalade too Cream Puff - LS'd Square - Slow going on the back burner Tripple Threat - 3 Wrecks for the price of one build thread Project Delongdium - Step-Sons Plastic Clad 2003 Avalanche - DONE and Delivered. |
03-18-2016, 10:08 AM | #7 |
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Re: ls swap for a 75 k5 blazer
Lowrodder here's how I did my steam line..also you can use the vette filter/reg with that engine just block the return port on the fuel rail..that's how I did mine. I also ran steel braid for all my fuel lines.
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03-18-2016, 10:40 AM | #8 |
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Location: Cactus Patch So. Az
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Re: ls swap for a 75 k5 blazer
If your going to replace the rad you could get a 1/4" fitting placed in the tank and hook your steam line to the rad, or have one added to your existing rad!
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03-18-2016, 10:50 AM | #9 | |
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Location: Pflugerville, TX
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Re: ls swap for a 75 k5 blazer
Quote:
Here is the tapped pump (LS3 Camaro in this case), with the fitting installed: |
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03-18-2016, 10:54 AM | #10 |
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Re: ls swap for a 75 k5 blazer
How did you block the return? What did you do about the fuel pressure regulator on the rail? Essentially you're dead heading 58psi of fuel in a hot engine compartment by blocking off a line, so you had better have one hell of a block on it, not like the old days when you could hose clamp a bolt in a piece of rubber hose. You definitely don't want fuel spraying all over a hot engine. And all this just to use an overpriced fuel filter...... Just doesn't make sense to me.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
03-18-2016, 11:39 AM | #11 |
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Re: ls swap for a 75 k5 blazer
Ls1 what I did on the return rail was put a 5/16 gm style pushlock that had a -an male fitting on it then put a -an cap on it..with the vette filter reg I have there is no need to run a return line. The vette reg bypasses back into the tank..holds about 55psi on fuel rail and dont leak.. this is the way they told me to do it when I was assembling mine. Got about 8000 miles on it with no issues
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03-18-2016, 11:46 AM | #12 |
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Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: ls swap for a 75 k5 blazer
Ls1 what I did on the return rail was put a 5/16 gm style pushlock that had a -an male fitting on it then put a -an cap on it..with the vette filter reg I have there is no need to run a return line. The vette reg bypasses back into the tank..holds about 55psi on fuel rail and dont leak.. this is the way they told me to do it when I was assembling mine.
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