JR Race Car#574-ZRK-4000Stage 8 ZR Engine Kit
JR Race Car ZRK-4000 - JR RACE CAR ENGINES Details
ZR Stage 8 complete block kit, capable of running 8.50 with a 325-350 lbs package at sea level.
JR Race Car has an engine for any level of Junior Drag Racing... from the 12.90 Raptor-based motor all the way to Titan 3-3/4" bore motors. Review each engine's specifications to find which one meets your needs. Engine kits also available for Crew Chiefs who like to do their own engines.