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Old 04-16-2017, 06:04 PM   #1
jdime20
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Walbro 450 on stock blazer sending unit

My plan is to simply cut the bottom sock of the factory pick up tube and pit the walbro on it with the short hike and clamps....seems very simple, but haven't seen anyone do it yet. Is there something I'm missing?
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Old 04-16-2017, 06:54 PM   #2
72again4x4
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Re: Walbro 450 on stock blazer sending unit

I did it on mine and works like a charm. Double check your measurement on tank depth and go for it. I would send pics but mine is installed and I didn't take any pictures. When you mount the pump, also double check the hinge area on the float wire. My pump was rubbing and prevented full range of motion.
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Old 04-16-2017, 07:15 PM   #3
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Re: Walbro 450 on stock blazer sending unit

Did you set it up so that the walbro sock is just barely off the bottom of the tank?
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Old 04-16-2017, 08:20 PM   #4
72again4x4
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Re: Walbro 450 on stock blazer sending unit

Yes I did. I have an 87 blazer tank and sending unit. It measured 10 3/4 inches to the bottom and with the pump mounted vertically it sits just below the sending unit float attachment. Pump is approximately 1/4 off the bottom of the tank.
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Old 04-16-2017, 09:59 PM   #5
jdime20
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Re: Walbro 450 on stock blazer sending unit

Awesome, I was sure this would work and am surprised I haven't seen more people doing it. A lot simpler than most stuff I've seen
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Old 04-17-2017, 08:32 AM   #6
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Re: Walbro 450 on stock blazer sending unit

Where are you placing your return line
How are you getting your 12VDC connection outside of the tank?
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Old 04-17-2017, 08:58 AM   #7
72MARIO
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Re: Walbro 450 on stock blazer sending unit

What year tank are you using ?
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Old 04-17-2017, 09:45 AM   #8
72again4x4
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Re: Walbro 450 on stock blazer sending unit

HI solidaxel,
Was that question for me or the OP. Not trying to take over the thread.
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Old 04-17-2017, 11:57 AM   #9
solidaxel
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Re: Walbro 450 on stock blazer sending unit

jdime20, maybe he is going to use a 87 Blazer float with the return line
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD)
53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25
55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73
62 Solidaxle Corvette Roman Red (327
340hp 4spd 3:36) C4 & C5 suspension tube chassis
LS 3 4L70E
65 Corvette Coupe 327 350hp 4spd 4:11
78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42
2000 S-Type 3.0 (wife cruiser)
2003 GMC SCSB 5.3 4L60E 3:42
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Old 05-11-2017, 08:24 PM   #10
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Re: Walbro 450 on stock blazer sending unit

I'm using the blazer tank from the 67-72 models. I'll get some pics tomorrow
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Old 03-11-2020, 07:47 AM   #11
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Re: Walbro 450 on stock blazer sending unit

3 year bump for updates...
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