Account Login
Gift Cards
Track Order
Help Center

JEGS EFI Fuel Rails for LS1 and LS6 Factory Intakes


Product Q&A
View Now
Click image to zoom
EFI Fuel Rails for LS1 and LS6 Factory Intakes
SAVE $12.00
More than 10 available
Fuel Rails
  • LS1 & LS6 OE Intakes
  • Black Anodized Aluminum
  • (4) -6 AN to -8 AN O-Ring Fittings
  • (1) 12" -6 AN Crossover Hose
  • (1) -8 O-Ring Port Plug
  • Mounting Hardware
  • Ships

    Items You May Also Consider

    14400 - JEGS Fuel Rails for OE-Style LS Engine Intakes is rated 4.2 out of 5 by 15.
    Rated 5 out of 5 by from Easy install I ordered these for my '04 GTO. The factory rails were corroded and ugly ! The kit gives you versatility by having your crossover at the front or the rear of the rails. The supply line can connect to either end as well. They look great, and install was easy. My stock injectors popped right in.
    Date published: 2021-04-04
    Rated 5 out of 5 by from Let it flow Fit together nicely, and no fabrication needed. Priced right, and would highly recommend to friends and other gearheads
    Date published: 2020-11-09
    Date published: 2019-09-11
    Rated 5 out of 5 by from Very Complete The parts fit very nicely and all of the hardware needed to mount to the manifold was included
    Date published: 2019-07-20
    Rated 5 out of 5 by from Great Fuel Rail for LS Swap I bought this about a month or so ago for a project car my dad and I have been working on for a few years. It is a LS-swap in a 66 GTO. Since we put the motor in we had been having issues of losing fuel pressure at wide open throttle. This Fuel rail 100% corrected the issues we were having with the stock fuel rail in our swap and was much more reasonably priced than others. High Quality parts. Bolted right on our stock ls1 intake.
    Date published: 2017-07-06
    Rated 4 out of 5 by from Good Great quality, but it didnt come with everything I needed for the complete install i had to buy seperate parts.
    Date published: 2019-03-12
    Rated 4 out of 5 by from Good item Bought this two weeks to update my stock rails on my fast 90. It fit great but it did require to take a little bit off the intake because the rails would touch and not seat properly. But remember this is for a stock LS1 or LS6 intake but like I said with some small modifications they fit. Very well-made product.
    Date published: 2018-04-25
    Rated 3 out of 5 by from Difficult fit for c5 corvette Bought these about a month ago and thought they would be super simple but the clearance between the back of the rail and firewall is very tight and difficult to get a tight 90 degree an fitting to fit without trimming and the coating on the rails scratches very easy but overall functionality is great
    Date published: 2020-11-24
    • y_2022, m_12, d_4, h_21
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.34
    • cp_1, bvpage1
    • co_hasreviews, tv_5, tr_10
    • loc_en_US, sid_10001_10001_3707308, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Do these work with speed master intake manifolds 

    Asked by: Danny Boy
    Jegs 555-14400 we do not have fitment on speedmaster intake manifolds
    Answered by: langus
    Date published: 2022-10-03

    Hi, Will these fit an FAST LSX R intake?

    Asked by: Leadfoot1
    Yes. JEGS EFI Fuel Rails for LS1 and LS6 Factory Intakes will work on FAST LSX R intakes
    Answered by: Kenny U
    Date published: 2022-09-19

    Would these work on a 5.3 with the intake manifold of a trailblazer ss 6.0

    Asked by: Clos1
    We would recommend these fuel rail for that application - https://www.jegs.com/i/Holley/510/534-209/10002/-1
    Answered by: Rusty B
    Date published: 2019-03-07

    hello i have a 2005 5.3 and i am putting a Ls1 intake and adding these fuel rails. i was going to buy ls1 injectors so i don't have to use the stock ones with spacers .will they work with my harness. or should i just use stock 5.3 injectors with spacers?

    Asked by: TEEsCamaroLSX
    You can use your stock injectors unless you are adding more power to the engine, then you would need a larger injector.
    Answered by: Rusty B
    Date published: 2019-03-07

    will this kit work with the truck intake

    Asked by: scorcher
    This is compatible with the truck style intakes.
    Answered by: Rusty B
    Date published: 2022-12-03

    Could these possibly fit a fast lsxr 102 Intake seeing as it is very ls1-ls6 like in its design?

    Asked by: LsxSwinget
    These are only designed to fit stock Chevy intakes, you may be able to modify them to work.
    Answered by: Rusty B
    Date published: 2018-10-25

    I have a 2000 Chevy Silverado LS Z71 pickup with 5.3L stock engine. It has over 200,000 miles on the odometer...Will this fit my vehicle?

    Asked by: Tee_Dub
    Yes, those will fit that 5.3 engine.
    Answered by: BrandonJ
    Date published: 2019-03-07
    • y_2022, m_12, d_4, h_21CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.34
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_7
    • loc_en_US, sid_10001_10001_3707308, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Easy Kits

    Recently Viewed

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.