BBK Power Plus Series Twin 58mm Throttle Body — Fits 1985-1988 GM 305 350

SKU: BBK1536
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash More Power with the BBK Power Plus Series Twin 58mm Throttle Body

Experience a significant boost in performance for your classic GM vehicle with the BBK Power Plus Series Twin 58mm Throttle Body. Engineered as a direct replacement for restrictive factory units, this throttle body is designed to enhance airflow by up to 30%, translating directly into increased horsepower, torque, and a more responsive throttle.

Precision Engineered for Performance

Each BBK throttle body is meticulously CNC machined from a high-quality, new 356 aluminum casting. We utilize OEM-style die-stamped throttle linkages, double-sealed bearings, and o-ringed throttle shafts to ensure superior durability and optimal performance. This attention to detail guarantees that every BBK throttle body is the best on the market.

Key Features & Benefits:

  • Direct bolt-on replacement for factory throttle bodies.
  • Increases airflow by up to 30% for noticeable power gains.
  • Improves horsepower, torque, and throttle response.
  • CNC machined from premium 356 aluminum.
  • Features double-sealed bearings and o-ringed throttle shafts.
  • Designed to work with your vehicle's factory tune – no re-tuning required.
  • CARB EO: D-245-15

Vehicle Fitment:

This BBK throttle body is specifically designed for 1985-1988 Chevrolet Camaro, Chevrolet Corvette, and Pontiac Firebird models equipped with 305 and 350 cubic inch engines. This includes various trims such as Base, Z28, Iroc-Z, Trans Am, and more.

Upgrade your engine's breathing capabilities and feel the difference with BBK Performance. Visit GGCRACING.COM for all your performance needs.

Vehicle Fitment

Years Make Model Trim
1985-1986 Chevrolet Camaro Berlinetta
1985-1987 Chevrolet Camaro Sport
1985-1987 Chevrolet Camaro Z28
1985-1988 Chevrolet Camaro Iroc-Z
1987 Chevrolet Camaro LT
1988 Chevrolet Camaro Base
1986 Chevrolet Corvette Indianapolis 500 Pace Car
1988 Chevrolet Corvette 35th Anniversary Edition
1985-1986 Pontiac Firebird S/E
1985-1988 Pontiac Firebird Base
1985-1988 Pontiac Firebird Trans Am

Product Details

Product Description
Part Numbers
Sizing & Fit

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash More Power with the BBK Power Plus Series Twin 58mm Throttle Body

Experience a significant boost in performance for your classic GM vehicle with the BBK Power Plus Series Twin 58mm Throttle Body. Engineered as a direct replacement for restrictive factory units, this throttle body is designed to enhance airflow by up to 30%, translating directly into increased horsepower, torque, and a more responsive throttle.

Precision Engineered for Performance

Each BBK throttle body is meticulously CNC machined from a high-quality, new 356 aluminum casting. We utilize OEM-style die-stamped throttle linkages, double-sealed bearings, and o-ringed throttle shafts to ensure superior durability and optimal performance. This attention to detail guarantees that every BBK throttle body is the best on the market.

Key Features & Benefits:

  • Direct bolt-on replacement for factory throttle bodies.
  • Increases airflow by up to 30% for noticeable power gains.
  • Improves horsepower, torque, and throttle response.
  • CNC machined from premium 356 aluminum.
  • Features double-sealed bearings and o-ringed throttle shafts.
  • Designed to work with your vehicle's factory tune – no re-tuning required.
  • CARB EO: D-245-15

Vehicle Fitment:

This BBK throttle body is specifically designed for 1985-1988 Chevrolet Camaro, Chevrolet Corvette, and Pontiac Firebird models equipped with 305 and 350 cubic inch engines. This includes various trims such as Base, Z28, Iroc-Z, Trans Am, and more.

Upgrade your engine's breathing capabilities and feel the difference with BBK Performance. Visit GGCRACING.COM for all your performance needs.

Vehicle Fitment

Years Make Model Trim
1985-1986 Chevrolet Camaro Berlinetta
1985-1987 Chevrolet Camaro Sport
1985-1987 Chevrolet Camaro Z28
1985-1988 Chevrolet Camaro Iroc-Z
1987 Chevrolet Camaro LT
1988 Chevrolet Camaro Base
1986 Chevrolet Corvette Indianapolis 500 Pace Car
1988 Chevrolet Corvette 35th Anniversary Edition
1985-1986 Pontiac Firebird S/E
1985-1988 Pontiac Firebird Base
1985-1988 Pontiac Firebird Trans Am

Product Details

Product Description

About BBK

BBK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BBK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash More Power with the BBK Power Plus Series Twin 58mm Throttle Body

Experience a significant boost in performance for your classic GM vehicle with the BBK Power Plus Series Twin 58mm Throttle Body. Engineered as a direct replacement for restrictive factory units, this throttle body is designed to enhance airflow by up to 30%, translating directly into increased horsepower, torque, and a more responsive throttle.

Precision Engineered for Performance

Each BBK throttle body is meticulously CNC machined from a high-quality, new 356 aluminum casting. We utilize OEM-style die-stamped throttle linkages, double-sealed bearings, and o-ringed throttle shafts to ensure superior durability and optimal performance. This attention to detail guarantees that every BBK throttle body is the best on the market.

Key Features & Benefits:

  • Direct bolt-on replacement for factory throttle bodies.
  • Increases airflow by up to 30% for noticeable power gains.
  • Improves horsepower, torque, and throttle response.
  • CNC machined from premium 356 aluminum.
  • Features double-sealed bearings and o-ringed throttle shafts.
  • Designed to work with your vehicle's factory tune – no re-tuning required.
  • CARB EO: D-245-15

Vehicle Fitment:

This BBK throttle body is specifically designed for 1985-1988 Chevrolet Camaro, Chevrolet Corvette, and Pontiac Firebird models equipped with 305 and 350 cubic inch engines. This includes various trims such as Base, Z28, Iroc-Z, Trans Am, and more.

Upgrade your engine's breathing capabilities and feel the difference with BBK Performance. Visit GGCRACING.COM for all your performance needs.

Vehicle Fitment

Years Make Model Trim
1985-1986 Chevrolet Camaro Berlinetta
1985-1987 Chevrolet Camaro Sport
1985-1987 Chevrolet Camaro Z28
1985-1988 Chevrolet Camaro Iroc-Z
1987 Chevrolet Camaro LT
1988 Chevrolet Camaro Base
1986 Chevrolet Corvette Indianapolis 500 Pace Car
1988 Chevrolet Corvette 35th Anniversary Edition
1985-1986 Pontiac Firebird S/E
1985-1988 Pontiac Firebird Base
1985-1988 Pontiac Firebird Trans Am

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