Thinking of upgrade your 350z performance, I would advise you to upgrade too a GTM Custom 3.8L Stroker Billet Crankshaft. Adding the GTM 3.8L Stroker Billet Crankshaft to your 350z engine will improve your horsepower dramatically. GTM has released a true Customize 3.8L Stroker Billet Crankshaft system for the Nissan 350z for race car enthusiast. This true GTM 3.8L Stroker Billet Crankshaft eliminates factory specs part of the engine. GTM has stated that this Customize GTM 3.8L Stroker Billet Crankshaft will be able to support upwards of 1000hp. The internals are specifically designed for the Nissan 350z VQ35DE engine. The GTM 3.8L Stroker Billet Crankshaft will reach the 1000hp mark when extra modifications are added. The GTM 3.8L Stroker Billet Crankshaft has adopted full counter form in order to balance inertia power and the centrifugal force which is generated by counter weight. As a result of pursuing the most effective form of counter weight by the thorough analysis and thorough calculation, though the increase in weight was suppressed, improvement in the rate of balance was realized.

This new GTM 3.8L Stroker Billet Crankshaft is constructed from the same 4340 chromoly high-tensile steel alloy billet and hardened/tempered for a target tensile range of at least 930-1080 MPa (135,000-157,000 psi), incorporating 0.40% of carbon, proven to provide the highest degree of tensile, compression, and sheering strengths. The 87.0mm stroke affords a major advantage; it can be dropped into an unmodified (i.e. unsleeved) block with no need for longer sleeves (that have to be notched to preserve the oil jets), as is the case with the 90mm stroke crank. In this GTM 3.8L Stroker Billet Crankshaft Hi-Rev iteration of the crank, two key improvements were made: lowered weight and, most notably, optimized oil passages. This design is the exclusive design used in true high-revving race cars, including Formula 1. So forget those thoughts of having a stock motor on your 350z and take a look at the GTM 3.8L Stroker Billet Crankshaft today.