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Thread: firing order for 94 Cadillac

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  1. #1
    rdobbs is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2007

    firing order for 94 Cadillac


    I know about the old Chevys, but a friend of mine needs to know a little
    information regarding his 1994 cadillac deville 4.9 liter.
    1 First question: with hood raised what is the cylinder placement
    for the right and left side.
    2. 2nd question: what is the firing order on this car, and by the way
    it is a v-8.
    Thanks for your replies...rdobbs

  2. #2
    DennyW is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2004

    See if this helps.

    4.9L V-8 200 HP

    Cadillac 4.9 Liter PFI V8
    Engine specifications
    Bore 92mm (3.623")
    Stroke 92mm (3.623")
    Piston displacement 4.9 Liter (300 cu. in.)
    Compression ratio 9.5:1
    Compression pressure at cranking

    speed (throttle open)
    140-165 psi
    Horsepower 200 HP @ 4400 rpm
    Torque 275 lb.ft. @ 3000 rpm
    Face angle 45 deg
    seat angle 45 deg
    Head diameter - Intake 45mm (1.77")
    Head diameter - Exhaust 38mm (1.50")
    Rocker arm ratio 1.60:1
    Valve Springs
    Free length 49.5mm
    Pounds required to compress

    to 44mm (1.73")(valve closed)
    Pounds required to compress

    to 34.3mm (1.35")(valve open)
    Camshaft Timing (with ramp @ .004" lift)
    Intake opens 21 deg BTDC
    Intake closes 257 deg ATDC
    Exhaust opens 245 deg BTDC
    Exhaust closes 29 deg ATDC
    Intake lift (at valve) 9.75mm (.384")
    Exhaust lift (at valve) 10.06mm (.396")
    Intake duration 278 deg
    Exhaust duration 274 deg
    Overlap 49 deg

    Firing order should be cast into the intake manifold. Cylinder location is stamped on the intake right above the cylinder. 1-8-4-3-6-5-7-2
    # 1 is on passenger side rear I believe.
    North star motor 1-2-7-3-4-5-6-8

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