S&S Cycle

1926–'84 vintage engines

1984–1999 Evolution ® 1926–1984 Vintage Engines Tools & Shop Supplies Warranty & Company Policy Appendix & Index

SUPER STOCK ™ CYLINDER HEADS FOR 1966–’84 BIG TWIN ENGINES FITMENT • 1966–‘84 big twins • SH-Series engines FEATURES AND BENEFITS • Stock appearance and improved performance • S&S .590" lift valve springs • Fits stock intake manifolds and exhaust pipes • Rocker cover fastened with 5/16"-18 hex-head cap screws OPTIONS • Stock bore or 35/8" bore • O-ring or rubber band style manifold • Natural aluminum or wrinkle black powder coat finish • Dual spark plugs and/or external oil return lines by special order KIT CONTENTS • Front and rear assembled cylinder heads complete with valves and .590" springs

90-1496

• Head, rocker and exhaust gaskets • Mounting hardware and instructions

REPLACEMENT PARTS: SEE PAGE 190

CYLINDER HEAD KITS FOR 1966–'84 BIG TWIN ENGINES Engine Year and Type Bore

Aluminum Finish

Wrinkle Black

90-1496 90-1497 90-1491 90-1498 90-1499 90-1488 90-1490*

90-1596 90-1597

Stock

1966–'78 (O-ring)

35/8"

–

35/8" Dual Plug

90-1598

Stock

– –

1979–'84 (Band)

35/8"

35/8" Dual Plug

Special Order* 90-1490* *Use this special order part number to order assembled or unassembled cylinder heads with spring options, and special finish. Front or rear heads available by special order. Download the Special Order Form at sscycle.com/soforms DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle. Specify

REPLACEMENT CYLINDER HEADS FOR P-SERIES ENGINES & RETRO CONVERSION KITS

FITMENT • P-Series engines • 1966–‘84 big twins • Valve train update kit—available through Special Order FEATURES AND BENEFITS • S&S .590" lift valve springs • Late style valve chamber eliminates oil pooling • Cooling channel between combustion chamber and rocker arms OPTIONS • Stock bore or 35/8" bore • Dual spark plug available for 35/8" bore and special order • Stock pan bolt pattern available through special order KIT CONTENTS • Front and rear cylinder head complete with valves and springs • Head, pan, and exhaust gaskets

USPATENTPENDING CYLINDER HEADS exclusive

106-0414

REPLACEMENT PARTS: SEE PAGE 188 NOTE: These are not service part cylinder heads for panhead engines. They will not fit on stock panhead cylinders.

REPLACEMENT CYLINDER HEADS FOR S&S® P-SERIES ENGINES AND RETRO CONVERSION KITS Description Complete Kit (with Valves and Springs) Stock Bore 106-0414 35/8" Bore 106-0417 35/8" Bore Dual Plug 106-0420

147