• SPOOL RB30 - RB34 3.4 L Stroker Kit
    SPOOL RB30 - RB34 3.4 L Stroker KitSPOOL RB30 - RB34 3.4 L Stroker KitSPOOL RB30 - RB34 3.4 L Stroker KitSPOOL RB30 - RB34 3.4 L Stroker KitSPOOL RB30 - RB34 3.4 L Stroker Kit

    SPOOL RB30 - RB34 3.4 L Stroker Kit


    World's biggest capacity off the shelf RB30 Stroker Kit: RB34 Stroker Crank to Suit Nissan Skyline RB30 and Holden RB30 VL Commodore engines.  CP or JE Pistons available for RB30 (RB26 or RB25 Twin Cam cylinder head conversions)  and SOHC cylinder heads. Any bore size or compression ratio available. See all the info on the RB30 vs RB34 dyno comparison here: RB34DET Dyno Results

    NOTE: The std OEM crank girdle can be used with the RB34 crank setup. The girdle may require minimal clearencing.


    RB34 Stroker Kit Includes:

    • SPOOL Billet 4340 full counter weight 94mm Stroker Crankshaft
    • SPOOL I  Beam Forged Con rods with L19 Bolts
    • CP Custom Pistons ( rings, pins and locks included )
    • 9310 Gudgeon Pins (5mm wall thickness)

     


    Pro GTR Motorsport makes 1600 plus bhp with Spool 94mm RB34 Crank



    If your planning to stroke your RB30 you have come to the right place. SPOOL offers the worlds biggest off the shelf RB30 stroker kit. The kit includes a 94mm full counter weight Billet 4340 Nitrited crankshaft with long oil pump drive, I beam connecting rods and CP forged pistons and rings.

    As you can see from the table below. The RB34 has a very similar rod/stroke ratio as the Nissan CA18 and Toyota 2JZ both of which love to rev and have been around a long long time.

     

    Engine Rod Length(mm) Stroke(mm) Rod/Stroke Ratio
    SR20 Stroker 136.3 91 1.50
    2JZ 3.4 142 94 1.51
    CA18 Stroker 133 87.6 1.52
    LS Stroker 155.57 101.6 1.53
    BA 153.92 99.31 1.55
    EL/EF 149.35 96.31 1.55
    3RZ 147 95 1.55
    RB28 121.5 77.7 1.56
    SR20 136.3 86 1.58
    CA18  133 83.6 1.59
    RB34 152.5 94 1.62
    2JZ 142 86 1.65
    RB26 121.5 73.7 1.65
    RB32 152.5 91 1.68
    1JZ 125.25 71.5 1.75
    RB30 152.5 86 1.77
     



    SPOOL RB34 Kit - 9000RPM - 83mm Precision Turbo - 1070AWHP - 34PSI

    SPOOL RB34 Kit - 8200RPM - Garret T04Z - 610RWHP - 23PSI

    Like all SPOOL cranks, this is a true billet crank machined from forged 4340 bar stock.
    All components , crank, connecting rods and pistons are balanced.

     

    With the increased cubic capacity from the 94mm stroker crank, increases of up to 50% in torque and low to mid range power are achievable. Boost will come on earlier in the rev range and peak power will increase.

    CP pistons come with rings, pins and lock. The gudgeon pins are upgraded to 9310 hardened alloy steel with 5mm wall thickness. 

    We have customers making over 1000 hp with our billet crankshafts


    See complete build requirements here : HOW TO BUILD AN RB34

     




      

     

     

    See all the info on the RB30 vs RB34 dyno comparison here: RB34DET Dyno Results

     


    Purchase Item

    $6,150.00

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