Holley 502-9 Replacement 670 CFM TBI Throttle Body for 1990-95 GM 5.7L Trucks
510-502-9
Product Q&A
View Now
Click image to zoom
Items You Need
JEGS 80575 - Wire Crimping Pliers and Stripping Tool
$8.89
JEGS 10700 - 105-Piece Heat Seal Crimp Connector Kit
$49.99
JEGS 10610 - Nylon Wire and Cable Ties [11 in. Black]
$6.02
JEGS 10665 - Convoluted Tubing Kit Includes 1/4", 3/8", 1/2", 3/4" tubing self-fusing tape and heat shrink tubing
$34.01
JEGS 10365 - Rubber Grommet Assortment Kit 125 Pieces
$8.90
670 cfm
Holley 502-9 Replacement 670 CFM TBI Throttle Body for 1990-95 GM 5.7L Trucks Features:
- Direct Replacement for OE Units
- 2-Inch Throttle Bore
- 42% Area Increase Over Stock TBI
- Including Air Distribution Ring
- Increased Torque and Horsepower Up to 25%
- 50 State Legal
Holley 502-9 Replacement 670 CFM TBI Throttle Body for 1990-95 GM 5.7L Trucks Application Notes:
Specifications:
Part Type
Product Line
Airflow Rate (cfm)
670 cfm
Gaskets Included
Yes
Hardware Included
Yes
IAC Motor Included
Yes
Injectors Included
Yes
Package Depth
8.20
Package Height
11.50
Package Width
12.50
Part Category
Replacement Parts
Part Fitment
Direct Fit
Quantity
Sold individually
Shipping Weight
5.27
TPS Sensor Included
Yes
Throttle Body Finish
Natural
Throttle Body Material
Cast aluminum
Throttle Body Style
Throttle body injection, TBI
Vendor Part Number
502-9
Venturi Quantity
2
502-9 is rated
out of
5 by
6.
Rated 5 out of
5
by
92gmcdude from
runs great and fit perfect
Runs great so far have had 0 problems out of it. And now my truck can really get up and go.
Date published: 2019-12-04
Rated 5 out of
5
by
Tblose from
Holly TBI Easy to install, only took about 15 mins
Very easy to install. Some people had talked about having to bend the EGR bracket but mine was already out of the way. Seems to have added some power over 300 RPM. Much smoother Idell and transition is good as well. I also added the Flowtech Shorty Headers that were a direct fit and seems to have helped also
Date published: 2015-09-25
Rated 3 out of
5
by
D dog from
Maybe its just my luck
Put it on no problem easy change put but now wont idle consistant ,blubery on acceleration and kick down is slow to react kinda falls on its face.im still working on it four days later trying to find a problem but not yet
Date published: 2019-08-06
Rated 3 out of
5
by
JESETER from
WON'T PASS CAL SMOG VISUAL TESE
HAD MY 91 CHEV C1500 350 SMOGGED, PASSED ELECTRONIC TEST BUT FAIL VISUAL. SEEMS THAT QUITE A FEW TBI WILL FIT ANDEWORK BUT NOT ALL ARE ORIGINAL REPLACEMENT PARTS. CAL IS VERY STRICT ON AFTER MARKET PARTS.IF THE TBI HAD BEEN STAMP WITH HOLLEY 502-9 ON BODY, WHERE WOULDN'T HAVE BEEN A PROBLEM. HAD TO GO TO SMOG REFEREE TO GET IT PASSED. I STILL HAVE TO DEAL WITH THIS IN TWO YEARS WHEN I HAVE TO SMOG AGAIN. I'LL POBABLY BE BACK TO REFEREE AGAIN.
Date published: 2018-10-14
Rated 1 out of
5
by
Suburban Mike from
I wouldn’t know! I’m still waiting for it.
I purchased this unit for a birthday gift and still waiting for it.
Date published: 2021-03-17
Rated 1 out of
5
by
Garon from
total junk
I bought the first one to replace the OEM TBI, it ran extremely rich, as in black smoke and raw fuel from exhaust. I called Holley tech and was told my fuel pressure was too high. Inline pressure gauge installed and fuel pressure was 11 psi as required. per instructions. Called Holley Tech was then told the injectors picked up some trash from the fuel tank. I took the truck to the shop and they attempted to sort it out. After their eval and multiple calls to holley without improvement I called Jegs.
I spoke with Jegs, the only solution they had was to try another unit which I had to purchase. when the new unit arrived I took it to the speed shop, they replaced the 1st unit and after installation the butterfly in the 2nd unit sticks open. So $1200 tied up in parts that are not working as advertised, $600 in labor from the speed shop and my truck is still not running right.
Date published: 2018-03-21
Will this work on a 95 GMC vandura 5.7
The Holley 510-502-9 will work on a 95 GMC Vandura 5.7.
Date published: 2023-08-18
Will this work on a 4.3 engine?
The Holley 510-502-9 tbi does not work on a 4.3 engine.
Date published: 2023-05-31
Would this work with a 91 camaro? I just recently installed a 350.
This is made to work in a truck application, but depending on this rest of your engine and ECU this could be made to work.
Date published: 2023-04-03
Will this working with the factory air cleaner with the double wingnut? If not what air cleaner would work?
Yes, this will work with the factory air cleaner.
Date published: 2023-01-14
Have a 93 Chevy k1500 with 5.7 what would be a good intake manifold to pair with this not building a race car but want a daily driver with balls so any recommendations would be awsome
We have a few such as the Edelbrock # 3704.
Date published: 2020-03-29
I have this throttle body but I'm looking for one to give me more performance, do you have any?
This is the most you can do with the TBI setup. You would need to look into a new intake manifold and a different fuel management product.
Date published: 2018-10-14
Features:UniversalCNC Billet ConstructionProgressive Linkage SystemMore Precise Throttle ControlBetter DrivabilityMaximum AirflowMinimizes Air TurbulenceThrottle shafts are offset with respect to the throttle plates so engine vacuum will assist throttle plate closure. Universal Throttle Bodies.
Direct Replacement For OE Units2 in. Throttle Bore42 percent Area Increase Over Stock TBIIncluding Air Distribution RingIncreased Torque and Horsepower50 State Legal. 670 cfm.
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.
Tools:
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.