SKU: 948751945

Holley EFI Fuel Tank Modules - 255 LPH - Tri-Five Chevrolet Vehicles

Sale price$215.52 Regular price$239.47
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Description

Holley EFI Fuel Tank Modules - 255 LPH - Tri-Five Chevrolet VehiclesHolley EFI Fuel Tank Modules 255 LPH Tri Five Chevrolet Vehicles In tank fuel pump module for 1955 1957 Chevrolet Coupe & Sedan. Supports Up To 550 Horsepower. Overview This in tank fuel pump module is a high pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower. Featuring a pre calibrated fuel level sending unit designed to work with the factory fuel

Holley EFI Fuel Tank Modules - 255 LPH - Tri-Five Chevrolet Vehicles

In-tank fuel pump module for 1955-1957 Chevrolet Coupe & Sedan. Supports Up To 550 Horsepower.

Overview

This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower. Featuring a pre-calibrated fuel-level sending unit designed to work with the factory fuel gauge for this application is included. This module also features a HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick-up and also provides protection from contaminates

The fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of purchasing and installing an external fuel pressure regulator - no separate return line is required because this module returns excess fuel right inside the tank! This 1955-1957 Chevrolet Coupe & Sedan Muscle Car EFI Fuel Pump module was designed as a direct replacement for your factory pick-up and sending unit. There is no need to purchase a custom EFI fuel tank. You can even retain the factory fuel hard line - just connect the outlet of the pump module to the hard line on your vehicle with EFI-rated fuel hose and hose clamps available in the Earls Vapor Guard line. This Muscle Car EFI Module includes a 255 LPH fuel pump and a Holley HydraMat. HydraMat is an amazing patent-pending fuel reservoir system that reduces fuel starvation issues that might otherwise occur while cornering, accelerating, stopping, traversing inclines, and during low fuel conditions.

Features:

  • Supports up to 550 horsepower (HP)
  • Flows 255 liters per hour (LPH)
  • Internally regulated to 58 PSI
  • Included HydraMat patent-pending fuel reservoir system that reduces fuel starvation issues

Application    1955-1957 Chevrolet Coupe/Sedan
Average Flow Rating    255 LPH
Connector Gender    Male
Free Flow LPH    255
Fuel Filter Included    Yes
Fuel Sending Unit Included    Yes
Fuel Sending Unit Ohms    0-30 Ohms
Fuel Tank Pressure Sensor Included    No
Fuel Type    Gasoline
Gasket Or Seal Included    Yes
Grade Type    Performance
In Tank or External    In Tank
Inlet Diameter (in)    5/16 IN      5/16"
Inlet Quantity    One
Lock Ring Included    Yes
Material    Steel and Plastic
Maximum Pressure    58 PS
Negative Ground    Yes
Outlet Outside Diameter    3/8 IN
Outlet Quantity    One
Pump Type    Electric
Regulator Included    Yes
Resistance Ohms Empty    0 82
Resistance Ohms Full    90 82
Strainer Included    Yes
Vent Size    N/A
Warranty    Manufacturer's Limited 90 Day Warranty
Wire Harness Included    Yes

Links
Instruction Sheet

Note:  The pump is not compatible for use with PWM (Pulse-width Modulation) Not compatible with wagon or delivery models.

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 948751945

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4.9 ★★★★★
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R
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Rip
Bozeman, US
★★★★★ 5
Very compact
Size: 50-Foot, Style: Expandable Fabric
The hose is flat, so it doesn’t take up much room, which is great. However, being flat, it’s way more challenging to roll it up, but overall still a really good hose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
E
Verified Purchase
Ed
Lake Worth, US
★★★★★ 5
Compact storage
Size: 25-Foot, Style: Expandable Fabric
Yep, Camco is the way to go. Good flat drinking water hose. Reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
J
Verified Purchase
Julie Scott
Grantham, US
★★★★★ 5
Leaked after 2nd Use
Size: 50-Foot, Style: Expandable Fabric
It leaks. I read many reviews and finally decided on this Camco EvoFlex water hose to use with our new travel trailer. I loved that it was flat, light, and flexible. On our 2nd campng trip it started leaking. The water was seeping through the hose near the connection to the faucet. (it was not dripping from the faucet connection) There must be small holes in the hose. We did not notice it at first because it was so slow, but after a few hours we checked on our hook ups and we noticed water puddling and dripping down the hose. Luckly we had a back up that was not this brand that we switched to. We tried it again the next day hoping we had just set it up wrong, but it continued to leak water through the hose. I was disappoinnted because this hose was what I was initially looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
C
Verified Purchase
Claire Guiltner
West Palm Beach, US
★★★★★ 5
Awesome Hose for the Price and the Perfect length
Style: -20-Degree, Size: 12 Feet
We loved this product and was so great over the winter. It is so think and does not freeze over the winter. Temp was 0 and below and it had no issues. The length is perfect for a camper hookup and you are not always tripping or having a bunch of hoses laying around. It was so easy to use and install. The hose is stiff so it does not kink but is easy to move around. It is very thick so it has held up well.
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Reviewed in the United States on March 31, 2026
J
Verified Purchase
josh
Whiting, US
★★★★★ 5
good hose
Style: -20-Degree, Size: 25-Foot
I installed it about 2 weeks ago, after reading negative reviews, I was prepared for the worse. I did as instructed, kept the thermostat sensor next to the water source and plugged both ends, however the middle of the body of the house was lightly still coiled. When I tried, the water was leaking from under the insulation, where connected to the water source, just as I saw it in the negative reviews. Then I remembered, the instruction clearly say, the house must be uncoiled, so I disconnected, and stretched it out completely in a straight line taking out any kinks, then I took the ends and plugged them in the outlet and inlet. Tested it again and NO LEAK, it works perfectly. That night, it was 25F degrees, the hose was warm to the touch and no leak (the pressure in my sink faucet doubled, I suppose my old hose was not as efficient as new one, etc...). So, it works. I must say, that the instructions, indicate that the heating element turns on below 50F degrees, my hose. turns on when it it is below 35F roughly, which is fine.
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Reviewed in the United States on December 1, 2025

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