JR Racecar offer engines for all racers from 12.90 to 7.90 classes.  All JR engins have a standared mounting bolt pattern to be compatible with most cars.  Billet heads are the signature of all JR Racear engines.  In-house manufacturing of internal compoonents allows for the best quality on the market.

The Blockzilla has come and gone, twice.  The JR Racecar ZR (Zilla Replacement) engins are made in Colorado and are known around the country as a top preformer in the 10.90 and 8.90 divisions.

Racing the the 7.90 or 8.90 class demands the preformence of the Titan Engine.  A full billet, full rollar engine providing proven longevity and superior preformance.