Skinner Valve Division (Parker Online Catalog)   

SK Hand Tool Corporation   

Sir Michaels - Distinctive truck styling   

Simpson Race Products   

Simple Digital Systems EM-2   

SIDEKICK PERFORMANCE EXHAUSTS AND RACE CANS   

Showcars Fiberglass & Steel Bodyparts Unlimited   

Largest selection - fiberglass and steel. Rod, Race, Repair. Great reference site!

SHOGUN INDUSTRIES - Innovation and Technology Combined!   

Shocks, Automotive Shock Absorbers, Struts, Automotive Suspension, RD Enterprises, shox.com   

SHIFTWORKS   

Sherman Auto & Truck Parts - International Auto Body Supply   

Sharpe Manufacturing Company - The Spray Gun People   

Setrab Oil Coolers   

serdi.fr - Machine tools for internal combustion heads   

Machines SERDI SA, located in Annecy, France is the Worldwide Leader in the design, manufacture and marketing of machine tools for the manufacturing and rebuilding of internal combustion engine cylinder heads.

Sebring Sportauspuffanlagen   

Sears Craftsman Tools   

Sean Hyland Motorsport - Mustang Cobra - Mustang GT   

Scribner Plastics   

Schwanke Short Blocks   

Schneider Racing Cams