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2.8 chevy v6

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  • Question : 2.8 chevy v6

    Is there a simple visual way to tell a chevy 2.8 v6 from the other chevy v6's?

  • #2
    It all depends. Is it in the car or on a pallet in a yard?

    In the car the quickest way to ID any engine is to look at the emissions sticker. Car engine often have the displacement cast into the intake or part of the engine cover. S-10's can get trickier because the 4.3L was offered along side the 2.8L. But the quick way to tell is look at the air cleaner. If you see the map sensor on the side it is a 2.8L. 4.3L's have the MAP mounted on a bracket over the valve cover. If those parts are missing then the throttle body is another clue. A 2.8L has the lines entering at the front of the engine. The 4.3L has the lines entering at the back. If the whole intake or even the heads are off then on a 2.8L the cylinders on the passenger side are furthest forward. On the 4.3L the drivers side are furthest forward.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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    • #3

      2.8


      4.3

      note the "pairing" of the center exhaust port. i assume this would be a reliable way to tell 4.3 from 2.8 as well?
      1995 Monte Carlo LS 3100, 4T60E...for now, future plans include driving it until the wheels fall off!
      Latest nAst1 files here!
      Need a wiring diagram for any GM car or truck from 82-06(and 07-08 cars)? PM me!

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      • #4
        Originally posted by robertisaar View Post

        2.8


        4.3

        note the "pairing" of the center exhaust port. i assume this would be a reliable way to tell 4.3 from 2.8 as well?
        It also looks like the plugs are under the ports on the 4.3 and beside on the 2.8.

        Sent from my HTC One X using Tapatalk 2
        -60v6's 2nd Jon M.
        91 Black Lumina Z34-5 speed
        92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
        94 Red Ford Ranger 2WD-5 speed
        Originally posted by Jay Leno
        Tires are cheap clutches...

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