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BBK Underdrive Pulleys - Aluminum (79-93 5.0L)

Market Price $136.99 You Save 12% ($17.00)
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  • Item 56027

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    Features & Details

    • Gain Up to 15HP.
    • Three Piece Kit.
    • Brilliantly Polished Finish.
    • Fits 79-93 LX, GT, and Cobra 5.0L.
    Gain 15HP. Improve your Foxbody's throttle response and give it more power with a set of BBK underdrive pulleys. By reducing the power drain your accessories are putting on your engine, you'll free up as much as 15HP - all without affecting its charging or cooling characteristics.

    Premium Quality. Made of aircraft quality aluminum alloy, these BBK aluminum pulleys won't weigh you down.

    Hand Polished. The brilliant polished finish of these underdrive pulleys will give your engine bay a high performance look.

    Easy Installation. Installation normally takes about 30 minutes and full instructions are included. Reuses factory belt.

    Application. These underdrive pulleys are for the 1979-1993 LX, GT, and Cobra with the 5.0 liter V8 engine.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 Details

    MPN# 1553

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    Hardware included:
    • (1) water pump pulley
    • (1) alternator pulley
    • (1) crank pulley
    • (4) water pump bolts
    Installation Info
    Tech Specs
    UnderDrive Pulley Specifications
    Year/Model: 79-93 5.0L V8 Manufacture: BBK
    Material: Aluminum Finish: Polished
    Crank Pulley: Piggyback SFI Certifited: No
    Will it fit my Mustang?

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    Questions & Answers (6)

    5 Top Rated Questions

    Hello, I have removed my smog and a/c (no idler pullies) and I plan on installing this set. What length serpentine belt do I need?

    I have an automatic ‘90 GT, is there anything else that I need to upgrade or change when installing underdrive pulleys?

    • Nothing else will be needed when installing this kit.

    Helpful (0)

    can you use these pullies if you already installed an a/c delete.

    • Yes, you are able to use these pulleys even if you have deleted your A/C.

    Helpful (0)

    Will they work on a 351w

    • These underdrive pulleys will be able to work with the 351W.

    Helpful (0)

    Will stock belt fit with these pulleys and sr billet smog pump eliminator?

    • These underdrive pulleys will reuse your factory belt. They will also work with the smog pump eliminator.

    Helpful (0)
    Post Your Question
    1 More Question
    Will the stock belt fit? 1 answer

    Recommended For You

    Customer Reviews (30) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Performance Gain 4.318182 4.3
    • Fit 4.818182 4.8

    • 3/5

      Installation Time: Less than 1 Hour

      April 01, 2019

      It’s awesome

      It’s awesome just a long time to get here. The pullys are very light and look really good and everything fit perfect


      Year: 1988 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 14, 2019

      Fits on great

      Nice product everything fit well, definitely needed to upgrade alternator and radiator and electric fan to use underdrive pulleys and have no problems.


      Year: 1989 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      November 05, 2018


      I can tell a big diff I would tell all my friends to go out and buy the kit.


      Year: 1992 Submodel: LX

      Helpful (4)

    • 4/5

      Installation Time: Afternoon

      August 07, 2018

      Saving My Thunderbird

      Underdrive pulleys are very nice. Only 1 does not fit which is the crankshaft pulley. Was kinda disappointed but what can you do. It was very hard to find pulleys for that car for some reason so im keeping the pulleys that do fit.


      Year: 1999 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      April 19, 2018

      BBK PULLEYS!!!

      I really like the fast and friendly shipping and the product is a Great addition to my FoxBody!!!


      Year: 1987 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      April 17, 2018

      Great Fit

      This product went on with no problems. Took about half a hour to install. I give this a 5 star


      Year: 1991 Submodel: LX

      Helpful (5)

    • 5/5

      August 17, 2017

      BBK Aluminum Pulleys

      Easy to install, look good still need to add Billet Alluminum smog pump eliminator to complete the job to make sure I get the Maximum horse power out of these nice looking pulleys. My 93 GT dose run a little stronger and is quicker in response to the gas peddle since I installed a new water pump, aluminum radiator, 9mm spark plug wires, auto lite plugs, Accel kap and rotor and these BBK Under Drive Pulleys which to me about 9 hours to install. These very minor upgrades have made a noticeable difference in the overall performance of my 5.0 and I kinda get a little ax-sited thinking about how much nicer it is going to sound and how much stronger it will run when I finish my mild transformation when I add a mac exsaust, a bama chip, a billet smog pump eliminator, a cold air cleaner and some sub frame connectors which should add up to 50 horse power to the original 210 horse 5.0 GT power plant. I found this GT all original unmolested rust free car in November 2015 and just started to drive it this spring and I like a lot and enen though the red paint has faded and the clear is peeling not a mouth goes by with out someone telling me that they like my car and want to buy it, and I tell them it's not for sale.


      Year: 1993 Submodel: GT

      Helpful (8)

    • 5/5

      August 07, 2017

      Shinny pulleys

      They are well built, much lighter then stock and clean up the engine bay a little.


      Year: 1986 Submodel: Other

      Helpful (7)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      July 12, 2017


      Good preformance increase on a stock motor. Looks good under the hood. Difficult to get the stock pulleys off, ended up taking them to a local shop.


      Year: 1987 Submodel: GT

      Helpful (7)

    • 4/5

      January 26, 2017

      Great product And look

      Looks great under the hood and was able to feel the difference right away!


      Year: 1990 Submodel: GT

      Helpful (9)

    • 5/5

      August 12, 2016


      Tried the black steel pulleys first. Crank shaft pulley cracked twice. Spent a little extra for the aluminum and install was flawless. Dresses it up a bit too


      Year: 1987 Submodel: Other

      Helpful (7)

    • 5/5

      July 26, 2016

      BBK underdrive pulley

      This set of BBK pulleys are great, they give my LX 5.0 cobra a great look under the hood.


      Year: 1993 Submodel: Cobra

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      May 13, 2016

      Bang for you buck

      Easy to install if you have the radiator Out of car and a torque gun handy . They say kit comes with 4 pump bolts? Wrong the bolt are for the new crank pulley can't use old bolts heads hit inter dimension.


      Year: 1987 Submodel: GT

      Helpful (9)

    • 3/5

      Installation Time: Less than 1 Hour

      May 15, 2015

      Wait and See

      Quality seemed a little less than the previous pulleys I had in (March pulleys). But I'll try them and wait and see.


      Year: 1988 Submodel: GT St. Louis

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      July 02, 2014

      Awesome gain

      Would have taken less time but I put on a march alternator bracket that deleted the smog pump. Overall easy fit crank pulley is deep and is hard to tighten bolts but very doable. No charge problems and the engine definitely revs up faster


      Year: 1989 Submodel: Other North Carolina, USA

      Helpful (11)

    • 5/5

      Installation Time: Afternoon

      May 07, 2013

      Good Shiznit

      Good product, the pulleys brighten up the engine bay and add a little something you can feel. To pull the alternator and crank pulley You will need to use a impact gun and probably need to pull out your radiator for the impact gun to fit, but this gives you the added bonus of doing a nice coolant flush and a opportunity to rinse out that old radiator if its still stock like mine is.


      Year: 1990 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      March 09, 2013


      Frees up hp u can feel! Car instantly feels lighter, not to mention how awesome the chrome looks!


      Year: 1992 Submodel: GT

      Helpful (8)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      January 31, 2013

      BBK underdrive pulleys

      I had the underdrive pulleys professionally installed on my 85 5.0. they look great. I can't say what the differance is for performance due to I had the motor rebuilt adding an additional 140 HP.


      Year: 1985 Submodel: Other eau claire wisconsin 54703

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      July 31, 2012

      these are really nice

      what a difference made in my car i would buy them if you asks me i had them in 2 days i would not buy from any were else great job American muscle


      Year: 1989 Submodel: GT Warrenton, MO, USA

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      March 16, 2012

      Pulley set

      Looks great and works Great, Great for car shows or just a little shine under the hood


      Year: 1991 Submodel: GT Harrodsburg KY

      Helpful (7)

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