Engine Swap and Fuel Sending Unit - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bluec10 · 03-09-2005, 05:21 PM

I've currently got an L6 with a three speed. I want to go with a 350/700R4 combo. Which fuel sending unit should I use to keep the original gauges? I know that GM had a V8/Automatic sender for the 71-71 trucks. Is this the way to go? Your thoughts.

meathead95 · 03-09-2005, 05:23 PM

what does the fuel sending unit have to do with the engine and trans?

Tx Firefighter · 03-09-2005, 05:45 PM

I've always reused the existing sending unit and 5/16 line on V8 swaps. You only need to worry about upgrading to the larger stuff if you have a higher performance V8 engine going in.

bluec10 · 03-11-2005, 12:07 PM

The fuel feed tube is part of the sending unit.

03-09-2005, 05:21 PM	#1
bluec10 Registered User Join Date: Apr 2002 Location: Manitoba, Canada Posts: 663	Engine Swap and Fuel Sending Unit I've currently got an L6 with a three speed. I want to go with a 350/700R4 combo. Which fuel sending unit should I use to keep the original gauges? I know that GM had a V8/Automatic sender for the 71-71 trucks. Is this the way to go? Your thoughts. __________________ Present: 2015 Tacoma. Yeah, not a GM, but I love it. 1969 GMC 32,000 - fix, drive, relax, fix... 2019 BMW R1250 GSA - Yahoooooooo 1979 Honda GL 1000 - retro touring at its best. Past: '05 Sierra 4x4 - Had 270,000 KM and running well when it was written-off by a stop sign runner. '94 F-150 from the "F word" company. I'll admit it...good truck. Sold what was left of it for $800 to a guy who came to pick it up at 11:00 PM with cash in hand. Hmm. '79 Sierra Grande (Black) organ donor - perfect rebuildable 4-bolt 350 and a good TH350. '76 Sierra Grande (Orange) - hate isn't too strong a word. Kid who bought it turned it into a hot rod. '68 C-10 R.I.P. - Dad's old truck...too far gone to resurrect. '59 C-50 - with hoist. Truck is gone, wife isn't. Nuff said.

03-09-2005, 05:23 PM	#2
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,440	what does the fuel sending unit have to do with the engine and trans? __________________ 72 2wd blazer 72 swb 4x4

03-09-2005, 05:45 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	I've always reused the existing sending unit and 5/16 line on V8 swaps. You only need to worry about upgrading to the larger stuff if you have a higher performance V8 engine going in. __________________ I'm on the Instagram- @Gearhead_Kevin

03-11-2005, 12:07 PM	#4
bluec10 Registered User Join Date: Apr 2002 Location: Manitoba, Canada Posts: 663	The fuel feed tube is part of the sending unit. __________________ Present: 2015 Tacoma. Yeah, not a GM, but I love it. 1969 GMC 32,000 - fix, drive, relax, fix... 2019 BMW R1250 GSA - Yahoooooooo 1979 Honda GL 1000 - retro touring at its best. Past: '05 Sierra 4x4 - Had 270,000 KM and running well when it was written-off by a stop sign runner. '94 F-150 from the "F word" company. I'll admit it...good truck. Sold what was left of it for $800 to a guy who came to pick it up at 11:00 PM with cash in hand. Hmm. '79 Sierra Grande (Black) organ donor - perfect rebuildable 4-bolt 350 and a good TH350. '76 Sierra Grande (Orange) - hate isn't too strong a word. Kid who bought it turned it into a hot rod. '68 C-10 R.I.P. - Dad's old truck...too far gone to resurrect. '59 C-50 - with hoist. Truck is gone, wife isn't. Nuff said.



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