1987-1990350 CID 5.7 Liter

The General Motors Rochester Throttle Body (TBI) is OEM original equipment. Each TBI comes complete with injectors, TPS, air control valve, and throttle body bushings. Every TBI will be Flow Bench tested, calibrated, and idle adjusted making it ready for easy installation.

To ensure the same OEM Throttle Body Injection (TBI) for the vehicle please enter all the required information about your TBI and vehicle in the text boxes below.

Please Provide the Following Information:
* Required fields

Location of TBI Number
The yellow circle shows the location of your TBI number. Please list your TBI number to ensure you receive the exact TBI.
  Click picture for close up view
*TBI Number:
Verification of Vacuum Line Configuration

The yellow circles below show the different vacuum tube configurations. Listed below are common TBI numbers for the T8-150. The T8-150(L) and T8-150(R). There is also a thrid option to choose, the (less common) T8-150(A) which has 4 tubes (17087005) not pictured below but available in the Vacuum Tube Configuration dropdown box below.

Click picture for close up view
Click picture for close up view
T8-150(L)
3 Tubes Left(L)
17087100
17087101
17093061
T8-150(R)
3 Tubes Right(R)
17089045
*Vacuum Tube Configuration:
Linkage Configuration
The picture below shows the linkage configuration for the T8-150. You will be replace your linkage stud from your old TBI.
 
Click picture for close up view
Click picture for close up view
*Linkage Type:
*Vehicle Year:
*Vehicle Make/Model:
*Engine Size:
Additional Comments:
If your Throttle Body (TBI) has missing or broken injectors or core damage, please list damages in this box.
*TBI Core Return:
*Where did you find us?:
*Carburetor Base Gasket?:
*I have read, understand and accept the core return policy:
I Accept Core Return Policy

We pay for you to return the old TBI core from anywhere in the continental United States. The TBI comes with a FREE UPS return shipping label. Repack your core in the box that your Throttle Body came in, adhere the UPS label, and give to any UPS driver or bring it to any UPS drop box.

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