With over 40 years of building some of the biggest and baddest Chevy engines on the planet, SAR's Sonny Leonard has a long list of technical achievements, world records and series championships associated with his name. With over 40 years of building some of the biggest and baddest Chevy engines on the planet SAR used a MSD flying magnet crank trigger to stabilize the ignition timing on this 940 ci pump gas engine. This arrangement utilizes four magnets in the aluminum trigger wheel which trigger the ignition when they pass by the stationary non-magnetic pickup seen on the lower left. This "flying magnet" design produces accurate trigger signals and the non-magnetic pickup cannot be false triggered. SAR used a MSD flying magnet crank trigger to stabilize the ignition timing on this 940 ci Priced in the high eighties, nearly 250 hours of labor went into this engine, which covered everything from milling the block to the final adjustments on the throttle linkage. Nearly every part was custom made or designed just for Sonny's Automotive Racing. Priced in the high eighties, nearly 250 hours of labor went into this engine, which covere Low profile, chrome plated valve covers that were buffed to a mirror finish were fabricated by Moroso especially for this pump gas monster motor. Low profile, chrome plated valve covers that were buffed to a mirror finish were fabricate TECHNICAL SPECS Block: CN billet aluminum water Deck Height: 12.225-inch Bore Dia: 5.082-inch Bore Spacing: 5.300-inch Oil Pump: Dailey 6 stage Oil Pan: Moroso 12-quart Crankshaft: Sonny Bryant billet steel Stroke: 5.800-inch Main Journal: 2.748-inch Main Bearing Clearance: 0.0038- to 0.0041-inch Rod Journal: 2.1982 Rod Bearing Clearance: 0.0035- to 0.0038-inch Bearings: Clevite H-series Rods: Carrillo Steel Rod Length: 7.995-inch Pistons: 12.0:1 BME gas ported dish Top Ring Gap: 0.040 Second Ring Gap: 0.045-inch Oil Ring Gap: 0.030-inch Cylinder Heads: SAR semi-hemispherical Gasket: Copper 0.051-inch thickness Intake Valve: Manley 2.750-inch Exhaust Valve: Manley 2.060-inch Pushrods: Manton 9/16-inch dia. Intake Length: 11.400-inch Exhaust Length: 12.750-inch Springs: PSI brand, installed height 2.430 intake/2.460 exhaust Rocker Arms: Jesel 1.75 intake, T&D 1.80 exhaust Camshaft: SAR 70mm custom grind Cam Lifters: Cam FX Intake Manifold: SAR sheetmetal Throttle Bodies: SAR 4x2 2.500-inch bore Nitrous System: Speedtech 2-stage Fogger Fuel Injectors: Precision Turbo 96 lb/hr Engine Management: Big Stuff 3 SOURCES Sonny's Automotive Racing 352 Training Center Road Lynchburg VA 24502 434-239-1009 www.sonnysracingengines.com « | 1 | 2 | 3 | View Full Article By Rod Short Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!