Our Wide Journal kits have become a staple item for our range and have become world renown for their performance and reliability. The 3.2L Wide Journal kit has held and continues to hold multiple world records, so the introduction of the 3.4L Wide Journal kit takes the capabilities of these kits to a new level of performance again. the 3.4L capacity can be achieved with both a 90mm and a 94mm crankshaft as seen in the table above. This kit is for billet block applications only as bores larger than 87mm are not advised for the cast RB30 Nissan block.
The most significant difference between this stroker kit and the standard connecting rod journal stroker kit is the extra width added to the connecting rod bearing journal. The journal has been widened by in excess of 20% from standard. The wider journal and bearing then enables the load to be dissipated over a larger area, increasing the life of the bearing and adding to the ability to produce more power. This eliminates the need for tuners to "tune to the bearing", allowing for more aggressive introduction of power without having to worry about the life of the bearing.
Not only does this benefit the life of the connecting rod bearing and journal on the crankshaft, it also benefits reliability via the connecting rod. In making the connecting rod bearing wider, the connecting rod itself also must be widened, and by virtue of adding more material to the big end journal of the connecting rod, increased power and reliability are among the benefits enjoyed.
The kit consists of our Nitto/CP pistons in a whole array of bore sizes. These pistons are cut from low silicon content 2618 material in CP’s Turbo HD forging. In addition to these, the pistons are complete with Nitto custom specifications, PVD rings, 9310 gudgeon pins, accumulator grooves and friction reduction grooves.
The connection between our crankshaft and piston is made possible by our Wide Journal V2 connecting rod. Made from double melted forged billet 4340, the V2 features a revised I-beam pocket and CHE pin bushes amongst other features to easily produce 2000hp. These connecting rods come with 7/16 ARP 2000 rod bolts as standard, with the option to upgrade to Custom Age 625+.
Completing the kit is the Wide Journal EN40B/4340 billet crankshaft in 90mm/94mm stroke. The crankshafts have been purposely designed with strength and high power applications in mind. The crankshafts are an immaculate piece with precision manufactured knife edging to reduce weight and cut through crank case oil mist with ease. This enables the crankshaft to rev freely and easily.
