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** H/F Series Engine Dimensional Info **

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    #1

    ** H/F Series Engine Dimensional Info **

    ** This thread was originally posted by Innovation on Honda-Tech so full credit goes to him. **


    Blocks

    BLOCK TYPE
    H22A = closed deck (With the exception of later-model "OBD2" Japanese engines.)
    H22A1 = closed deck
    H22A4 = open deck
    H23A = open deck (With the exception of the H23A found in the Ascot Innova that is effectively the H23A1 with the "1" dropped.)
    H23A1 = closed deck
    F20A = open deck
    F20B = open deck
    F22A = open deck
    F22B = open deck
    F22B1 = open deck
    F22B2 = open deck
    F22B6 = open deck
    F23A = open deck
    F20C = open deck
    F22C = open deck

    CYLINDER MATERIAL
    H22A = FRM
    H22A1 = FRM
    H22A4 = FRM
    H23A = FRM
    H23A1 = FRM
    F20A = iron
    F20B = iron
    F22A = iron
    F22B = iron
    F22B1 = iron
    F22B2 = iron
    F23A = iron
    F20C = FRM
    F22C = FRM

    DECK HEIGHT
    H22A = 219.5mm/8.643
    H22A1 = 219.5mm/8.643
    H22A4 = 219.5mm/8.643
    H23A = 219.5mm/8.643
    H23A1 = 219.5mm/8.643
    F20A = 219.5mm/8.643
    F20B = 219.5mm/8.643
    F22A = 219.5mm/8.643
    F22B = 219.5mm/8.643
    F22B1 = 219.5mm/8.643
    F22B2 = 219.5mm/8.643
    F23A = 219.5mm/8.643
    F20C = 223.9mm/8.815
    F22C = 223.9mm/8.815

    BORE
    H22A block = 87mm/3.425
    H22A1 block = 87mm/3.425
    H22A4 Block = 87mm/3.425
    H23A block = 87mm/3.425
    H23A1 block = 87mm/3.425
    F20A block = 85mm/3.346
    F20B block = 85mm/3.346
    F22A block = 85mm/3.346
    F22B block = 85mm/3.346
    F22B1 block = 85mm/3.346
    F22B2 block = 85mm/3.346
    F23A block = 86mm/3.385
    F20C block = 87mm/3.425
    F22C block = 87mm/3.425

    Rods

    LENGTH
    H22A = 143.0mm/5.633
    H22A1 = 143.0mm/5.633
    H22A4 = 143.0mm/5.633
    H23A = 141.0mm/5.551
    H23A1 = 141.5mm/5.572 (With the exception of the H23A found in the Ascot Innova that is effectively the H23A1 with the "1" dropped.)
    F20A = 145.0mm/5.709
    F20B = 145.0mm/5.709
    F22A = 141.5mm/5.572
    F22B = 141.5mm/5.572
    F22B1 = 141.5mm/5.572
    F22B2 = 141.5mm/5.572
    F23A = 141.0mm/5.551
    F20C = 153.0mm/6.023
    F22C = 149.65mm/5.892

    WIDTH
    H22A = 23.75mm/.935
    H22A1 = 23.75mm/.935
    H22A4 = 23.75mm/.935
    H23A = 23.75mm/.935
    H23A1 = 23.75mm/.935
    F20A = 23.75mm/.935
    F20B = 23.75mm/.935
    F22A = 23.75mm/.935
    F22B = 23.75mm/.935
    F22B1 = 23.75mm/.935
    F22B2 = 23.75mm/.935
    F23A = 19.81mm/.780
    F20C = 23.75mm/.935
    F22C = 23.75mm/.935

    MAIN BORE
    H22A = 51.00mm/2.008
    H22A1 = 51.00mm/2.008
    H22A4 = 51.00mm/2.008
    H23A = 51.00mm/2.008
    H23A1 = 51.00mm/2.008
    F20A = 48.00mm/1.890
    F20B = 48.00mm/1.890
    F22A = 51.00mm/2.008
    F22B = 51.00mm/2.008
    F22B1 = 51.00mm/2.008
    F22B2 = 51.00mm/2.008
    F23A = 48.00mm/1.890
    F20C = 51.00mm/2.008
    F22C = 51.00mm/2.008

    PIN BORE
    H22A = 21.97-21.98mm/.8649-.8654
    H22A1 = 21.97-21.98mm/.8649-.8654
    H22A4 = 21.97-21.98mm/.8649-.8654
    H23A = 21.97-21.98mm/.8649-.8654
    H23A1 = 21.97-21.98mm/.8649-.8654
    F20A = 21.97-21.98mm/.8649-.8654
    F20B = 21.97-21.98mm/.8649-.8654
    F22A = 21.97-21.98mm/.8649-.8654
    F22B = 21.97-21.98mm/.8649-.8654
    F22B1 = 21.97-21.98mm/.8649-.8654
    F22B2 = 21.97-21.98mm/.8649-.8654
    F23A = 21.97-21.98mm/.8649-.8654
    F20C = 22.97-22.98/.9043-.9047
    F22C = 22.97-22.98/.9043-.9047

    Pistons

    BORE
    H22A = 87mm/3.425
    H22A1 = 87mm/3.425
    H22A4 = 87mm/3.425
    H23A = 87mm/3.425
    H23A1 = 87mm/3.425
    F20A = 85mm/3.346
    F20B = 85mm/3.346
    F22A = 85mm/3.346
    F22B = 85mm/3.346
    F22B1 = 85mm/3.346
    F22B2 = 85mm/3.346
    F23A = 86mm/3.385
    F20C = 87mm/3.425
    F22C = 87mm/3.425

    COMPRESSION HEIGHT
    H22A = 31.0mm/1.221
    H22A1 = 31.0mm/1.221
    H22A4 = 31.0mm/1.221
    H23A = 30.5mm/1.203
    H23A1 = 30.5mm/1.203
    F20A = ???
    F20B = 31.0mm/1.221
    F22A = 30.5mm/1.203
    F22B = 30.5mm/1.203
    F22B1 = 30.5mm/1.203
    F22B2 = 30.5mm/1.203
    F23A = 30.0mm/1.181
    F20C = 30.0mm/1.181
    F22C = 30.0mm/1.181

    PISTON VOLUME
    H22A = -1.9 cc
    H22A Type S = +4.2 cc
    H22A1 = -1.8 cc
    H22A4 = -1.8 cc
    H23A = +4.3 cc
    H23A1 = -9.9 cc
    F20A = -4.7 cc
    F20B = +8.0 cc
    F22A = -14.5 cc
    F22B = -11.2 cc
    F22B1 = -14.5 cc
    F22B2 = -14.5 cc
    F23A = -18.0 cc
    F20C = +1.05 cc(unconfirmed-just a calculated figure based on a 30mm compression height)

    WRIST PIN DIAMETER
    H22A = 22.0mm/.866
    H22A1 = 22.0mm/.866
    H22A4 = 22.0mm/.866
    H23A = 22.0mm/.866
    H23A1 = 22.0mm/.866
    F20A = 22.0mm/.866
    F20B = 22.0mm/.866
    F22A = 22.0mm/.866
    F22B = 22.0mm/.866
    F22B1 = 22.0mm/.866
    F22B2 = 22.0mm/.866
    F23A = 22.0mm/.866
    F20C = 23.0mm/.905
    F22C = 23.0mm/.905

    Crankshafts

    STROKE
    H22A = 90.7mm/3.570
    H22A1 = 90.7mm/3.570
    H22A4 = 90.7mm/3.570
    H23A = 95mm/3.740
    H23A1 = 95mm/3.740
    F20A = 88mm/3.464
    F20B = 88mm/3.464
    F22A = 95mm/3.740
    F22B = 95mm/3.740
    F22B1 = 95mm/3.740
    F22B2 = 95mm/3.740
    F23A = 97mm/3.818

    MAIN JOURNAL DIAMETER
    H22A = 50mm
    H22A1 = 50mm
    H22A4 = 55mm
    H22A4 = 50mm (1997 Only)
    H23A = 55mm
    H23A1 = 50mm
    F20A = 50mm
    F20B = 55mm
    F22A = 50mm
    F22B = 50mm
    F22B1 = 50mm
    F22B2 = 50mm
    F23A = 55mm

    ROD JOURNAL DIAMETER
    H22A = 47.95mm/1.888
    H22A1 = 47.95mm/1.888
    H22A4 = 47.95mm/1.888
    H23A = 47.95mm/1.888
    H23A1 = 47.95mm/1.888
    F20A = 47.95mm/1.888
    F20B = 44.98mm/1.771
    F22A = 47.95mm/1.888
    F22B = 47.95mm/1.888
    F22B1 = 47.95mm/1.888
    F22B2 = 47.95mm/1.888
    F23A = 44.98mm/1.771

    Cylinder Heads

    HEAD VOLUME
    H22A = 53.8cc
    H22A1 = 53.8cc
    H22A4 = 53.8cc
    H23A = 53.8cc
    H23A1 = 50.0cc
    F20A = 50.0cc
    F20B = 53.8cc
    F22A = 50.5cc
    F22B = 50.5cc
    F22B1 = 50.6cc
    F22B2 = 50.6cc
    F23A = 50.6cc

    INTAKE VALVE DIAMETER
    H22A = 35mm/1.38
    H22A1 = 35mm/1.38
    H22A4 = 35mm/1.38
    H23A = 35mm/1.38
    H23A1 = 34mm/1.34
    F20A = 34mm/1.34
    F20B = 34mm/1.34
    F22A = 34mm/1.34
    F22B = 34mm/1.34
    F22B1 = 34mm/1.34
    F22B2 = 34mm/1.34
    F23A = 34mm/1.34

    EXHAUST VALVE DIAMETER
    H22A = 30mm/1.18
    H22A1 = 30mm/1.18
    H22A4 = 30mm/1.18
    H23A = 30mm/1.18
    H23A1 = 29mm/1.14
    F20A = 29mm/1.14
    F20B = 29mm/1.14
    F22A = 29mm/1.14
    F22B = 29mm/1.14
    F22B1 = 29mm/1.14
    F22B2 = 29mm/1.14
    F23A = 29mm/1.14

    Head Gaskets

    BORE
    H22A = 88mm/3.46
    H22A1 = 88mm/3.46
    H22A4 = 88mm/3.46
    H23A = 88mm/3.46
    H23A1 = 88mm/3.46
    F20A = 85.5mm/3.37
    F20B = 85.5mm/3.37
    F22A = 85.5mm/3.37
    F22B = 85.5mm/3.37
    F22B1 = 85.5mm/3.37
    F22B2 = 85.5mm/3.37
    F23A = 86.5mm/3.41

    THICKNESS
    H22A = 0.66mm/.026
    H22A1 = 0.66mm/.026
    H22A4 = 0.66mm/.026
    H23A = 0.66mm/.026
    H23A1 = 0.66mm/.026
    F20A = 0.66mm/.026
    F20B = 0.66mm/.026
    F22A = 0.66mm/.026
    F22B = 0.66mm/.026
    F22B1 = 0.66mm/.026
    F22B2 = 0.66mm/.026
    F23A = 0.66mm/.026

    Note:
    Gasket thickness measured after crush

    Bearings

    MAIN BEARING THICKNESS
    Blue: 2.013 - 2.010mm / 0.0793 - 0.0791
    Black: 2.010 - 2.007mm / 0.0791 - 0.0790
    Brown: 2.007 - 2.004mm / 0.0790 - 0.0789
    Green: 2.004 - 2.001mm / 0.0789 - 0.0788
    Yellow: 2.001 - 1.998mm / 0.0788 - 0.0787
    Pink: 1.998 - 1.995mm / 0.0787 - 0.0785
    Red: 1.995 - 1.992mm / 0.0785 - 0.0783

    ROD BEARING THICKNESS
    Blue: 1.510 - 1.507mm / 0.0594 - 0.0593
    Black: 1.507 - 1.504mm / 0.0593 - 0.0592
    Brown: 1.504 - 1.501mm / 0.0592 - 0.0591
    Green: 1.501 - 1.498mm / 0.0591 - 0.0590
    Yellow: 1.498 - 1.495mm / 0.0590 - 0.0589
    Pink: 1.495 - 1.492mm / 0.0589 - 0.0587
    Red: 1.492 - 1.489mm / 0.0587 - 0.0586

    MAIN BEARING WIDTH
    H22A = 19.9mm/.784
    H22A1 = 19.9mm/.784
    H22A4 = 19.9mm/.784
    H23A = 19.9mm/.784
    H23A1 = 19.9mm/.784
    F20B = 19.9mm/.784
    F22A = 19.9mm/.784
    F22B = 19.9mm/.784
    F22B1= 19.9mm/.784
    F22B2= 19.9mm/.784
    F23A = 19.9mm/.784

    ROD BEARING WIDTH
    H22A = 19.35mm/.762
    H22A1 = 19.35mm/.762
    H22A = 19.35mm/.762
    H23A = 19.35mm/.762
    H23A1 = 19.35mm/.762
    F20A = 19.35mm/.762
    F20B = 19.35mm/.762
    F22A = 19.35mm/.762
    F22B = 19.35mm/.762
    F22B1 = 19.35mm/.762
    F22B2 = 19.35mm/.762
    F23A = 15.47mm/.609


    ** Full credit goes to Innovation, PirateMcFred, prelittledude, Jdogg, ZigenBallz and HondaFan81 for this information. **
    Last edited by Jarrett; 04-01-2015, 08:29 AM.
    My Members' Ride Thread - It's a marathon build, not a sprint. But keep me honest on the update frequency!
    Tags: None
    #2
    OEM 90-93 ACCORD ENGINE BEARING ONLINE ORDERING CORRELATION CHART:

    ** For those ordering OEM Honda 90-93 Accord engine bearings from Majestic Honda (www.hondaautomotiveparts.com), here is a correlation chart of their part description to service manual bearing color codes **

    CONNECTING ROD BEARINGS:

    A = BLUE
    B = BLACK
    C = BROWN
    D = GREEN
    E = YELLOW
    F = PINK
    G = RED

    MAIN BEARINGS:

    A = BLACK
    B = BROWN
    C = GREEN
    D = YELLOW
    E = PINK
    HondaFan81 For Sale Parts (LOW PRICES ON EVERYTHING)

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