World's biggest capacity off the shelf RB30 Stroker Kit:

RB34 Stroker Crank to Suit Nissan Skyline RB30 and Holden RB30 VL Commodore engines. 

Pistons available for RB30 (RB26 or RB25 Twin Cam cylinder head conversions)  and SOHC cylinder heads.

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.

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.

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.

Rated at 1500 horsepower plus. 

See complete build requirements here : HOW TO BUILD AN RB34

RB34 Stroker Kit Includes:

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

 

 

 

 

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