kits are engineered to give sb chevys 25 to 40 more power while maintaining ... ability kits are now also available for vortec/fastburn l31 cylinder heads for easy ... applications using these affordable heads in addition to the 142s already being ... feature 100 new cnc machined parts no remanufactured components including new thick-wall ... 400 to 450 horsepower out of a mild 350 chevy · low profile design for hood-conscious ... · available for standard aftermarket heads · kits available for vortec/fastburn ... aftermarket heads with vortec im flange edelbrock e-tec · increases ... 19861,3,4,5 chevrolet small block w vortec l31 fastburn heads1,3,5 nose style long ... to install on 1987-later cast-iron heads 3 does not fit 1984-96 corvettes 4 fits ... v-belts 5 does not fit 1993-later lt-1 heads 6 does not fit engines originally ...
feature 100 new cnc machined parts no remanufactured components including new thick-wall ... 400 to 450 horsepower out of a mild 350 chevy · substantially increases torque for ... 4bbl carburetors · kits will not fit vortec l31 fastburn gm cylinder heads ...