Description
Comparison points and tradeoffs
When comparing Holley EFI 502-9 1990-95 5.7L GM Truck with other Throttle Bodies options, use this source-backed detail as the primary discriminator: Item Weight: 5.28 pounds.
Use this second fact to evaluate the tradeoff: Model: Holley EFI 90-95 Gm P/U 5.7L 670 Cfm Tbi. A third point to compare across alternatives is: Category: Replacement Parts / Fuel System / Throttle Bodies.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
| Manufacturer | Holley |
|---|---|
| Brand | Holley |
| Model | Holley EFI 90-95 Gm P/U 5.7L 670 Cfm Tbi |
| Item Weight | 5.28 pounds |
| Item model number | 502-9 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | 502-9 |
| OEM Part Number | 502-9 |
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM’s popular LS engine are dominating the LS scene as well. Holley’s products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
Source product highlights
- Genuine Holley Quality Parts
- Corrosion resistant
- Made from quality materials
- Easy installation
- Durable and long lasting




Old Guy –
Despite the Amazon parts selector indicating this throttle body would fit my Chevy 1990 K-1500 5.7L V8, the throttle position sensor on my OEM throttle body used a different plug than the Holley throttle body. I was unable to locate an adapter for the plug. Therefore, I had to return the throttle body.
Michael Miller –
Nice product,exactly what I had on there before but better than trying to rebuild..1 thing I did find out is if you buy this product to make sure you put a t in there for map sensor or you won’t get a true reading because it is in the same port as throttle position sensor and will kill your gas mileage…Also make sure to put a shut off nipple on back where they want you to put map sensor ..Over all good product with my brand new flow master exhaust truck has 215,000 miles on it and still plows through snow and runs tough every day to work ..33 inch mud tires ,aluminum rims and 4 inch lift ..chevy 1500 4×4 350ci now has the performance that it once had a long time ago. Amazon has fast shipping was here 2 days later around 8 o’clock at night at the time it said it would be here..thanks again amazon
Doug –
You would think for the price of this throttle body it would come with the factory connectors.
gary harris –
Great tbi yes you have to splice the wires for the injectors but worth it come with the hardware to do so my only suggestion would be to upgrade your intake or bore out your stock to get full benefits of this tbi
Terry –
I think this is a great piece , it looks great and works very well. The only reason I did not rate it 5 stars is because you do have to cut and splice the wires to the injectors. I can see why it is designed that way though. There is also the fact that there is not instructions for the air cleaner hold down rod or some of the other pieces. With that being said ,I put it on , started my truck set my idle and it was good to go.