Ostrich Racing Engines Inc.
Product Catalog
23° Dome 4.020 Bore, 3.500 Stroke, 1.250 Compression Height, 434 grams for Small Block Chevy.
23° Dome, 4.030 Bore, 3.500 Storke,1.250 Compression Heigth, 436 grams for Small Block Chevy.