Speed tuning theory and practice, costs, horsepower and torque for Chevrolet 6s from 1937 through 1954, plus the 228, 248 and 270 GMC engines.
How to Hop Up Chevrolet & GMC Engines handbook discusses the five paths to power: cam, carburetion, compression, exhaust and ignition. Separate chapters detail fitting the block, stock and special Wayne and Horning cylinder heads, rocker arms, pushrods, cams, boring for larger pistons, rings, drilled crankshafts, intake manifolds, exhaust headers, ignitions and even superchargers.
Contents: ● The Why and The Wherefore ● The Chevy Power Family ● The Paths to Power ● Fitting Up the Block ● The Cylinder Head ● The Induction System ● Ignition ● Superchargers ● What'll She Do? ● Planning the Job ● Appendix I - Clearances & General Operating Data - Wayne Engine ● Appendix II - Souping G.M.C. Engines for Chevrolet Cars
Shows how to plan modifications, then estimate horsepower and torque. Roger explains what this will cost back in 1951.
