300ZX(Z31) Information



The Nissan 300ZX, also known as the Z31, is the 3rd generation of the Nissan Z-car lineup. The Z31 was offered in both two-seater and four-seater versions, and came with a variety of engine options, including a 3.0-liter V6 and a turbocharged version of the same engine. The Z31 was praised for its sharp handling and sleek design, and has since become a beloved classic among car enthusiasts. If you're interested in learning more about the Z31 and its specifications, this page is the perfect place to start.

 

Table of Contents


Basic Z31 Information
  • Camshaft Specifications
  • Commonly Requested Replacement Parts
  • Crankshaft Pulley Differences
  • Driveshaft Specifications
  • ECU Pin Out
  • Fuel Injector Specifications
  • Rear Differential Specifications
  • Sway Bar Specifications
  • Transmission Specifications

  • Anti-sway Bar Specifications

    Front Anti-Sway Bar information

     Part Number Anti-Sway Bar Size Year Trim
    54611-Z3100 22mm

    12/1983 - 03/1984

    09/1985 - 09/1986

     

    Turbo

    50th Anniversary

    54611-Z3100 22mm

    1986

    1984 - 09/1985

    Non-Turbo

    Turbo / Non-Turbo

    54611-Z31003 22mm 1987 - 1989 Non-Turbo
    54611-Z31004 24mm

    09/1986 - 01/1988

    01/1988+

    Turbo

    54611-Z31005 24mm 01/1988+ Shiro



    Rear Anti-Sway Bar information

    Part Number Anti-Sway Bar Size Year Trim
    56230-Z31001  22mm

    1984 - 04/1987

    04/1987+

    All

    Non-Turbo

    56230-Z31002 24mm 04/1987 - 01/1988 Turbo
    56230-Z31003 26mm 01/1988+ Shiro



    Camshaft Specifications
    OEM Camshaft Information
     Manufacture Intake Duration Exhaust Duration Intake Cam Lift Exhaust Cam Lift
    Stock US Z31 (7/83 - 7/87) 252 or 193 @ 0.050" 252 or 193 @ 0.050" 0.393" 0.393"
    Stock US Z31 (8/87+) 248 or 189 @ 0.050" 248 or 192 @ 0.050" 0.393" 0.393"
    J-Spec  252 or 193 @ 0.050" 252 or 193 @ 0.050" 0.393" 0.393"
    Euro Spec 264 262 0.393" 0.393"
    NISMO Spec 264 262 0.393" 0.393"
    US VG30 "Truck" spec (D21, WD21, and J30) 248 or 189 @ 0.050" 248 or 192 @ 0.050" 0.393" 0.393"
    US VG33 Spec (All models) 240 244 0.366 0.366"


    Aftermarket Camshaft Specifications


    Colt Cams

     Cam Grind Intake Duration Exhaust Duration Exhaust Cam Lift Intake Cam Lift
    Na/Turbo Grind (Stage 1) 256 or 202 @ 0.050" 256 or 202 @ 0.050" 0.420" 0.420"
    NA (Stage 2) 262 or 210 @ 0.050" 262 or 210 @ 0.050" 0.428" 0.428"
    Turbo (Stage 2) 262 or 210 @ 0.050" 262 or 210 @ 0.050" 0.428" 0.420"

    Schneider Racing Cams:

     Cam Grind Intake Duration Exhaust Duration Exhaust Cam Lift Intake Cam Lift
    NA 256 256 0.420" 0.420"
    NA 262 262 0.420" 0.420"
    NA 270 270 0.440" 0.440"
    NA 280 280 0.450" 0.450"
    Turbo 262 256 0.420" 0.420"
    Turbo 270 262 0.440" 0.420"
    Turbo 280 270 0.450" 0.440"
    Turbo "Race Only" 284 274 0.450" 0.440"