Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

5.3 conversion fuel rail questions

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Old Aug 25, 2019 | 06:43 PM
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Default 5.3 conversion fuel rail questions

5.3 conversion. Looking at gas tank options. Can do the standard send and return off the stock fuel rail, but does anyone had experience with in tank regulator or the systems of the regulator and filter in one? In this case has one modified the stock fuel rail for single hook up or do you have to just replace it?
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Old Aug 25, 2019 | 06:56 PM
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I have an "at tank" combined regulator and filter from Tanks, Inc. with the pump inside the tank. Seems to be working well on a 70 El Camino with a donor 5.3L engine from a 1999 GMC Sierra. I replaced the vacuum-referenced regulator at the fuel rail with a return-less fuel rail and it has also been working well. I did not modify the stock fuel rail.

Rick
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Old Aug 25, 2019 | 09:03 PM
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Originally Posted by B52bombardier1
I have an "at tank" combined regulator and filter from Tanks, Inc. with the pump inside the tank. Seems to be working well on a 70 El Camino with a donor 5.3L engine from a 1999 GMC Sierra. I replaced the vacuum-referenced regulator at the fuel rail with a return-less fuel rail and it has also been working well. I did not modify the stock fuel rail.

Rick
what returnless fuel rail are we talking about and where can i source or inquire. thank you sir.
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Old Aug 26, 2019 | 06:40 AM
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I don't remember what year or model that my return-less fuel rail came from but somebody here will know what works for you.

Rick
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Old Aug 26, 2019 | 07:31 AM
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most 04-07 trucks were returnless.
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Old Aug 26, 2019 | 07:32 AM
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Btw, the stock truck rail mounted regulator is much better than the corvette style filter/regulator combo if you plan on doing any major mods down the road.
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Old Aug 26, 2019 | 01:40 PM
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Originally Posted by JoeNova
most 04-07 trucks were returnless.
Found it, thank you. Does the crossover clear the truck manifold?
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Old Aug 26, 2019 | 08:14 PM
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Yes, it does. Everything fits perfectly including the original LM7 injectors.

Rick
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Old Aug 27, 2019 | 07:09 AM
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Originally Posted by pt2285
Found it, thank you. Does the crossover clear the truck manifold?
..... They were on a truck manifold already.
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