SKU: 47769349514

Holley 255 LPH OE Style EFI Fuel Tank Modules - 12-304

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Description

Holley 255 LPH OE Style EFI Fuel Tank Modules - 12-304Overview: 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 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

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  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 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 1977-81 F-body 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:

     

    Application:

    Year Make Model Submodel Engine Size
    1980 - 1981 Chevrolet Camaro Berlinetta 229/3.8L 6
    1980 Chevrolet Camaro Rally Sport 267/4.4L 8
    1975 - 1978 Chevrolet Camaro LT 250/4.1L 6
    1970 - 1975 Chevrolet Camaro RS 250/4.1L 6
    1970 - 1975 Chevrolet Camaro RS 350/5.7L 8
    1970 - 1973 Chevrolet Camaro Base 307/5L 8
    1970 - 1973 Chevrolet Camaro RS 307/5L 8
    1970 - 1980 Chevrolet Camaro Base 350/5.7L 8
    1970 - 1972 Chevrolet Camaro SS 402/6.6L 8
    1971 - 1972 Chevrolet Camaro Base 402/6.6L 8
    1970 - 1981 Chevrolet Camaro Z28 350/5.7L 8
    1976 - 1978 Chevrolet Camaro LT Rally Sport 305/5L 8
    1976 - 1980 Chevrolet Camaro Rally Sport 305/5L 8
    1976 - 1980 Chevrolet Camaro Base 305/5L 8
    1976 - 1980 Chevrolet Camaro Rally Sport 350/5.7L 8
    1981 Chevrolet Camaro Sport 350/5.7L 8
    1980 - 1981 Chevrolet Camaro Berlinetta 267/4.4L 8
    1981 Chevrolet Camaro Sport 229/3.8L 6
    1976 - 1978 Chevrolet Camaro LT Rally Sport 350/5.7L 8
    1980 Chevrolet Camaro Rally Sport 229/3.8L 6
    1979 - 1981 Chevrolet Camaro Berlinetta 350/5.7L 8
    1976 - 1979 Chevrolet Camaro Rally Sport 250/4.1L 6
    1977 - 1978 Chevrolet Camaro LT Rally Sport 250/4.1L 6
    1981 Chevrolet Camaro Sport 231/3.8L 6
    1973 - 1978 Chevrolet Camaro LT 350/5.7L 8
    1970 - 1979 Chevrolet Camaro Base 250/4.1L 6
    1970 - 1972 Chevrolet Camaro SS 350/5.7L 8
    1981 Chevrolet Camaro Sport 305/5L 8
    1979 - 1981 Chevrolet Camaro Z28 305/5L 8
    1976 - 1978 Chevrolet Camaro LT 305/5L 8
    1980 Chevrolet Camaro Base 267/4.4L 8
    1980 Chevrolet Camaro Base 229/3.8L 6
    1981 Chevrolet Camaro Sport 267/4.4L 8
    1979 Chevrolet Camaro Berlinetta 250/4.1L 6
    1980 - 1981 Chevrolet Camaro Berlinetta 231/3.8L 6
    1980 Chevrolet Camaro Base 231/3.8L 6
    1980 Chevrolet Camaro Rally Sport 231/3.8L 6
    1972 Chevrolet Camaro Z28 402/6.6L 8
    1973 Chevrolet Camaro LT 307/5L 8
    1979 - 1981 Chevrolet Camaro Berlinetta 305/5L 8
    1977 - 1979 Chevrolet Nova Rally 350/5.7L 8
    1976 - 1979 Chevrolet Nova Base 305/5L 8
    1975 Chevrolet Nova Base 262/4.3L 8
    1975 Chevrolet Nova LN 262/4.3L 8
    1976 - 1977 Chevrolet Nova Concours 350/5.7L 8
    1975 - 1979 Chevrolet Nova Base 250/4.1L 6
    1975 - 1979 Chevrolet Nova Custom 250/4.1L 6
    1975 Chevrolet Nova LN 250/4.1L 6
    1975 - 1979 Chevrolet Nova Base 350/5.7L 8
    1976 - 1977 Chevrolet Nova Concours 305/5L 8
    1978 - 1979 Chevrolet Nova Custom 305/5L 8
    1977 - 1979 Chevrolet Nova Rally 305/5L 8
    1975 - 1978 Chevrolet Nova Police 350/5.7L 8
    1976 Chevrolet Nova SS 350/5.7L 8
    1975 - 1979 Chevrolet Nova Custom 350/5.7L 8
    1975 Chevrolet Nova Police 262/4.3L 8
    1976 - 1978 Chevrolet Nova Police 305/5L 8
    1975 Chevrolet Nova Custom 262/4.3L 8
    1976 - 1977 Chevrolet Nova Concours 250/4.1L 6
    1977 - 1979 Chevrolet Nova Rally 250/4.1L 6
    1975 - 1978 Chevrolet Nova Police 250/4.1L 6
    1975 Chevrolet Nova LN 350/5.7L 8
    1976 Chevrolet Nova SS 305/5L 8
    1975 - 1979 Buick Skylark Base 350/5.7L 8
    1975 - 1977 Buick Skylark SR 231/3.8L 6
    1978 - 1979 Buick Skylark Custom 305/5L 8
    1977 - 1979 Buick Skylark Base 305/5L 8
    1977 - 1979 Buick Skylark S 305/5L 8
    1975 - 1979 Buick Skylark Base 231/3.8L 6
    1978 - 1979 Buick Skylark Custom 350/5.7L 8
    1977 Buick Skylark SR 301/4.9L 8
    1977 Buick Skylark Base 301/4.9L 8
    1978 Buick Skylark Sport 350/5.7L 8
    1975 - 1977 Buick Skylark SR 350/5.7L 8
    1975 - 1976 Buick Skylark SR 260/4.3L 8
    1975 - 1976 Buick Skylark Base 260/4.3L 8
    1976 - 1977 Buick Skylark S 350/5.7L 8
    1978 - 1979 Buick Skylark Custom 231/3.8L 6
    1978 Buick Skylark Sport 231/3.8L 6
    1976 Buick Skylark S 260/4.3L 8
    1976 - 1979 Buick Skylark S 231/3.8L 6
    1977 Buick Skylark S 301/4.9L 8
    1978 Buick Skylark Sport 305/5L 8
    1977 Buick Skylark SR 305/5L 8
    1970 - 1977 Pontiac Firebird Base 400/6.6L 8
    1970 - 1979 Pontiac Firebird Trans Am 400/6.6L 8
    1977 - 1981 Pontiac Firebird Formula 301/4.9L 8
    1979 - 1981 Pontiac Firebird Trans Am 301/4.9L 8
    1970 - 1979 Pontiac Firebird Base 350/5.7L 8
    1977 Pontiac Firebird Base 403/6.6L 8
    1977 - 1979 Pontiac Firebird Trans Am 403/6.6L 8
    1970 - 1979 Pontiac Firebird Esprit 350/5.7L 8
    1977 - 1979 Pontiac Firebird Formula 403/6.6L 8
    1977 - 1981 Pontiac Firebird Base 301/4.9L 8
    1977 - 1981 Pontiac Firebird Esprit 231/3.8L 6
    1980 - 1981 Pontiac Firebird Base 265/4.3L 8
    1970 - 1976 Pontiac Firebird Esprit 250/4.1L 6
    1977 - 1981 Pontiac Firebird Base 231/3.8L 6
    1971 - 1974 Pontiac Firebird Esprit 455/7.5L 8
    1970 - 1979 Pontiac Firebird Formula 400/6.6L 8
    1971 - 1976 Pontiac Firebird Trans Am 455/7.5L 8
    1971 - 1974 Pontiac Firebird Formula 455/7.5L 8
    1970 - 1975 Pontiac Firebird Trans Am 350/5.7L 8
    1970 - 1976 Pontiac Firebird Base 250/4.1L 6
    1970 - 1976 Pontiac Firebird Esprit 400/6.6L 8
    1970 - 1979 Pontiac Firebird Formula 350/5.7L 8
    1977 - 1980 Pontiac Firebird Base 305/5L 8
    1977 - 1981 Pontiac Firebird Formula 305/5L 8
    1977 - 1980 Pontiac Firebird Esprit 305/5L 8
    1980 - 1981 Pontiac Firebird Trans Am 305/5L 8
    1977 - 1981 Pontiac Firebird Esprit 301/4.9L 8
    1981 Pontiac Firebird Trans Am 267/4.4L 8
    1981 Pontiac Firebird Formula 265/4.3L 8
    1981 Pontiac Firebird Formula 267/4.4L 8
    1980 - 1981 Pontiac Firebird Esprit 265/4.3L 8
    1981 Pontiac Firebird Esprit 267/4.4L 8
    1971 - 1974 Pontiac Firebird Base 455/7.5L 8
    1981 Pontiac Firebird Base 267/4.4L 8
    1981 Pontiac Firebird Formula 231/3.8L 6

     

    Specs:

    Brand Holley Sniper EFI
    Emission Code 5
    Free Flow LPH 255
    Fuel Sending Unit Ohms 0-90 Ohms
    Fuel Type Gasoline
    Inlet Diameter (in) 5/16""
    Product Type Fuel Pump Module
    Vent Size N/A
    Warning California Proposition 65
    Warranty Limited 90 Day
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • 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]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 47769349514

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    4.7 ★★★★★
    Based on 21 reviews
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    D
    Verified Purchase
    DadK
    Charlottesville, US
    ★★★★★ 5
    Soft, true-fit briefs — great daily comfort, not ideal for workouts
    Color: Black, Size: Large
    I’ve been wearing these wirarpa modal briefs every day for about a month, and they’ve quickly become my go-to pair for daily wear. I previously owned the same brand’s boxer briefs for over a year, which held up better than any other brand I’ve tried, so I decided to test the brief version this time. Fit and Comfort The sizing was spot-on for me. The waistband is soft, not scratchy, and doesn’t dig in — it stays in place without rolling. The leg openings don’t ride up, and everything stays comfortably supported without tight seams in the wrong spots. I’d almost forgotten how briefs feel after years of wearing boxer briefs, but these reminded me why they’re still worth owning. Fabric and Wearability The modal material is silky and smooth to the touch. It’s perfect for everyday comfort and casual wear, but not the best choice for sports — it’s not highly moisture-wicking, so I wouldn’t use them for workouts or hot outdoor work. Durability After a month of daily washing, there’s no pilling, stretching, or loose stitching at all. If they hold up like my year-old wirarpa boxer briefs, I expect these to last far longer than most big-name brands. Design Notes These come neatly rolled in a sealed bag with no odor or chemical smell — a nice touch that shows some quality control. Bottom Line If you like a soft, lightweight brief that fits true to size and stays comfortable all day, these are a great value. Go for the boxer briefs if you want more coverage or plan to sweat in them, but for regular daily wear, these hit the mark perfectly.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 5, 2025
    J
    Verified Purchase
    JustAShopper
    Cuba, US
    ★★★★★ 5
    Soft, lightweight, and comfortable
    Color: Black,navy,burgundy,brown, Size: Medium
    These briefs are soft, lightweight, and very comfortable for everyday wear. The modal microfiber material has a nice silky feel, and they provide plenty of room without feeling bulky. The fit is true to size, which is always a plus when ordering underwear online. Overall, a comfortable and well-made option if you want something soft and easy to wear all day.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 24, 2026
    A
    Verified Purchase
    Amazon Customer
    Birmingham, US
    ★★★★★ 4
    Comfortable and soft
    Color: Black, Size: Small
    I purchased these in small. I have a 30-inch waist, and the small is loose on me. They are described as handmade, and to expect some variance, but there is a noticeable difference between individual items. Individually, they are well constructed, just inconsistent in size.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 30, 2026
    D
    Verified Purchase
    Drew Amador
    Dallas, US
    ★★★★★ 5
    Just buy them
    Color: Black,navy,burgundy,brown, Size: Small
    Used to wear sliders all the time, figured i'd switch it up. These are super comfortable, probably the best material underwear I own. Great to just lounge around it or wear everyday. Fit is really good, I got a small and about 29-30" waist. Good bang for your buck too. I've washed them a handful of times and they hold up great, fit great and dont' shrink.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 7, 2026
    D
    Verified Purchase
    Darling Dumpling
    Fort Morgan, US
    ★★★★★ 5
    Good underwear. Husband likes them.
    Color: Black, Size: Large
    Husband wears XL and XL fit well. This is the second pack I got for him. They are decent quality, look and feel nice, not baggy yet not too tight anywhere. They are somewhat thin (but still supportive) and do not make him sweat more so he loves that. No problems washing (they didn’t shrink). Will continue to repurchase these.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 11, 2026

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