RHS Aluminum LS Engine Block

Aluminum engines bring a lot to any motorsports party from drag racing to road racing to autocross.  They cut about 100 lbs from the nose of the car.  This greatly improves steering and braking thanks to not only the weight reduction but the better balance from front to rear.  Straight line only?  Going fast is weight to horsepower - not just horsepower.  Aluminum also transfers heat better than iron, so these blocks are easy to keep cool. These RHS LS bare race blocks are designed to meet the needs of today's high performance engine builders and racing enthusiasts. These blocks are available in standard and tall deck height combinations and are engineered for maximum clearance around a 4.600 in. stroke crankshaft. With their unique design, RHS engineers were able to minimize windage in the rotating assembly, leading to superior engine lubrication at higher rpm. To make them friendly for existing race applications, these blocks contain both factory and motor plate race mounts for Gen