PRP LS1 Alternator Conversion Kit Nissan RB20 RB25 RB26 RB30 Conoce el mapa de Tahuantinsuyo y su legado histrico. Ditch that tired RB Alternator that is over 25 years old and step into a world of reliability. The alternators on the Nissan RB series engines came with an output of 35amps and 90Amps in the later model RB26. With today's technology and horsepower figures being constantly pushed, an average street car can easily consume even the full 90amps by making even the most minor modifications such as, Aftermarket ECU's, Additional Fuel Pumps, Upgraded Ignition Hardware or even a simple set of headlight upgrades. Our LS1 alternator kit is designed to fit the GM 92058857, and with genuine units being discontinued, we offer a high quality JAS equivalent. Producing an impressive 140 amps, this alternator is a cost effective upgrade for the RB platform when paired with our premium conversion kit. If you have a more performance orientated build we also now offer a High RPM Performance alternator available to purchase separately here Platinum Racing Products has specifically designed this kit to eliminate the requirement of both alternator bracket and conversion bracket when upgrading to LS1 Alternators. Our kit comes fully integrated into ONE good looking and simple solution that allows your alternator to mount as close to the block as much as possible This kit can be installed in a short amount of time with ease and comes with: PRP Custom Billet Alternator Bracket Adjusting hardware to suit 20% Under driven Alternator Pulley to suit RB 4 rib belts, specifically designed to ensure not over spinning the Alternator beyond manufacturers recommendations. Optional JAS LS1 Alternator Applicable to all twin and single cam RB engines. If you are looking for a drive belt also we list the correct length to suit our LS1 kit along with an ATI Harmonic Balancer listed here. Other known belt lengths: PRP LS1 Alt kit with ATI 1000hp Balancer: 4PK 875 PRP LS1 Alt Kit Ross Metal Jacket: 4PK 900 Fitment Notes: These kits do not fit the RB30 SOHC found in the Nissan Patrol with the factory Carburettor engines