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  • 86-91 GM Truck/SUV w/4.3L V6, 5.0L,5.7L V8- SMOOTH-BORE Throttle Body Spacer
  • E.O. Number: D578-1 Emissions Notes: 50 State Legal (street legal) spacer per vehicle listing on C.A.R.B. EO D578-1
  • 1986-91 Chevy/GMC Trucks and SUVs with 4.3L V6 or 5.0L, 5.7L V8- Cast Aluminum SMOOTH-BORE Throttle Body Spacer; (SINGLE Wing Nut Air Cleaner)
  • Product Attributes:
    • California Proposition 65: Warning: Cancer & Reproductive Harm. For More Info Visit
    • E.O. #: Yes
    • Mounting Hardware Included: Yes
    • Package Contents: Tbi Spacer, Gaskets, Mounting Bolts
    • Bolt Hole Quantity: 3
    • Performance: Yes
    • Plenum Style: Ported
    • Contents: Tbi Spacer, Gaskets, Mounting Bolts
    • Installation Notes: Use Of 2458 Fuel Line Extensions Recommended For All Tbi Spacer Installations.
    • Product Details: Fits 1986-91 4.3l V6 Or 5.0l, 5.7l V8 Chevy/gmc Trucks & Suvs. Also Fits S10.
    • Spacer Thickness: 1 In.
    • Additional Details: Increases Plenum Volume And Air Velocity For Horsepower And Torque Gains.
    • Spacer Finish: Burnished
    • Spacer Material: Cast Aluminum
    • Emissions Notes: C.a.r.b. E.o. #d-578-1; 50 State Legal. Click Here To View Covered Vehicles.
    • Materials: Cast Aluminum
    • Thickness: 1 In.

Additional Fitment Information:
Vehicle Block CC Region Fuel Type Engine CID
1988 - Chevrolet C1500 V - United States GAS 6 Cyl 4.3L 262
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