HIGH-PERFORMANCE CHEVY SMALL-BLOCK CAMS & VALVETRAINS

by Hansen, Graham

• ISBN13: 9781932494082
• ISBN10: 1932494081
• Format: Paperback
• Copyright: 2005-12-31
• Publisher: Cartech Inc

Summary

Graham Hansen, author of the best-selling SA Design title How To Build Big-Inch Chevy Small Blocks, takes the mystery out of camshaft and valvetrain function, selection, and design. He covers camshaft basics, including a thorough explanation of how a cam operates in conjunction with the rest of the engine and valvetrain. He discusses technical terms like overlap, lobe centerline, duration, lift, and cam profiling. Comparisons between roller and flat-tappet cams are addressed and analyzed. This book covers rocker arms, lifters, valves, valvesprings, retainers, guideplates, pushrods, and cam drives, as well as detailed information on how to degree a cam and choose the proper cam for your application. Finally, matching cams to cylinder heads, analyzing port flow, and proving it all through dyno tests round out this informative volume.

Table of Contents

Introduction to Small-Block Chevy Cams and Valvetrains	p. 4
Basics	p. 4
Where We're Headed	p. 6
Camshaft Basics	p. 9
Camshaft Types	p. 9
Lobe Prospecting - Duration	p. 9
Lobe Centerlines	p. 11
Advance or Retard	p. 12
Overlap	p. 13
Overlap Specialties	p. 14
Exhaust Closing	p. 15
Lobe Profiling	p. 17
Conclusion	p. 22
Roller Cams	p. 23
Mechanical vs. Hydraulic Rollers	p. 27
Pluses and Minuses	p. 27
Mechanical Rollers	p. 29
Street Rollers	p. 29
Converting From Flat to Roller	p. 30
Conclusion	p. 32
Valvetrain Overview	p. 33
Evolution	p. 34
Valves, Springs, Retainers, and Keepers	p. 39
Valves	p. 39
Springs	p. 41
Retainers and Keepers	p. 45
Seals	p. 46
Conclusion	p. 47
Rocker Arms, Studs, Pushrods, and Lifters	p. 49
Rocker Arms	p. 49
It's All in the Ratio	p. 52
Studs and Guideplates	p. 54
Pushrods	p. 56
Lifters	p. 57
Cam Drives	p. 62
Practical Applications	p. 64
Conclusion	p. 67
Shaft Rocker Systems	p. 68
Fulcrum Length	p. 68
Offset Rockers	p. 71
Practical Applications	p. 72
How To Install and Degree a Cam	p. 76
Bolt It In	p. 76
Tools to Get Your Degree	p. 78
Degree Program	p. 80
Converting to a Roller Cam	p. 84
Power Tuning	p. 86
Lash Loops	p. 87
Conclusion	p. 91
How to Choose a Cam	p. 92
The Saga of Ricky Racer	p. 93
Street Compromises	p. 94
Duration Facts	p. 98
Supercharger, Nitrous, and Turbo Cams	p. 102
Nitrous	p. 102
Supercharging	p. 103
Turbocharging	p. 104
Power Adder Cams	p. 104
Nitrous Cams	p. 110
Valvetrain Dynamics	p. 111
Valve Float	p. 112
Valve Toss	p. 114
Lobe Design	p. 114
Mass Attack	p. 117
Conclusion	p. 122
Matching Cams and Cylinder Heads	p. 124
Port Flow	p. 124
Cams and Cylinder Heads	p. 127
Conclusion	p. 132
Dyno Tests	p. 134
	p. 135
	p. 136
	p. 137
	p. 138
	p. 139
	p. 139
	p. 141
	p. 142
Source Guide	p. 143
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