BBK 1534 Twin 52mm Throttle Body
- Twin 52 mm bores, Power Plus series
- GM tuned port 305 and 350, 1985-1992 engines
- 7-12 HP gain claimed, depends on vehicle and application
- CNC machined 356 aluminum castings
- 9 x 6 x 4 inches product dimensions
- 3.9 pounds item weight
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A twin-bore aluminum throttle body for GM tuned port engines in the years listed. It is a narrow fit, and the listing gives no flow figures behind its horsepower claim.
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ASIN: B000CITCYUModel: 1534Category: Throttle Bodies
Overview
BBK machines this Power Plus throttle body from cast aluminum for GM tuned port engines. The twin-bore unit takes the place of the factory throttle body, and the listing says it is made to match OEM quality and fit.
The attraction is a matched twin-bore replacement for the named GM engines from a maker that focuses on throttle bodies. The listing leaves out included parts and warranty terms, and the horsepower claim is a range that depends on the vehicle.
Who it's for
A hobbyist rebuilding or tuning a tuned port GM engine can use the part number to match the unit to the listing. Owners of other GM engines, or those who need warranty details, should ask the seller first.
Pros and cons
- CNC machined aluminum
- Made for tuned port GM engines
- Dimensions given for planning
- Warranty terms not listed
- Included parts not stated
- Fits only the named years
- Power gain depends on application
Performance notes
The twin bore sets how much air can reach the intake at full throttle, and machined aluminum castings give the flange a consistent fit. The seller claims a gain that varies with the vehicle, and no flow data is listed to confirm it.
Specifications
| Brand | BBK Performance |
|---|---|
| Model | 1534 |
| Dimensions & fit | |
| Bore size | Twin 52 mm |
| Dimensions | 9 x 6 x 4 inches |
| Item weight | 3.9 pounds |
| Power & efficiency | |
| Claimed gain | 7-12 HP, depends on vehicle and application |
| Construction & materials | |
| Material | CNC machined 356 aluminum castings |
| Compatibility & installation | |
| Fits | GM tuned port 305 and 350, 1985-1992 |
| Other details | |
| Part number | 1534 |
Frequently asked questions
Does the BBK 1534 throttle body need any adjusting after fitting?
The listing gives no cleaning, adjustment or idle-setting steps. Use the vehicle service information for those.
Which GM engines does the BBK 1534 fit?
The description names 1985-1992 GM tuned port 305 and 350 engines. The title adds TPI.
Is the BBK 1534 a universal throttle body?
No. It is listed only for the named GM tuned port engines and years.