EDELBROCK CYLINDER HEADS,E-STREET,1955-1986 SBC,64CC,PAIR

BRAND NEW EDELBROCK SMALL BLOCK CHEVY E-STREET CYLINDER HEADS FOR 1955-1986 SBC ENGINES

THE EDELBROCK #5089 E-STREET CYLINDER HEADS ARE DESIGNED FOR USE WITH 1955-1986 SMALL-BLOCK CHEVY APPLICATIONS. THE EDELBROCK E-STREET CYLINDER HEADS OFFER AMERICAN MADE QUALITY AND AFFORDABLE PERFORMANCE.

E-STREET CYLINDER HEADS FEATURE AS-CAST PORTS AND ARE DESIGNED FOR ENTRY-LEVEL STREET PERFORMANCE APPLICATIONS OPERATING IN THE IDLE-TO-5500 RPM RANGE. THE MODERN COMBUSTION CHAMBER DESIGNS IMPROVE THE COMBUSTION PROCESS AND LARGER THAN STOCK INTAKE AND EXHAUST PORTS MOVE MORE AIR THROUGH YOUR ENGINE FOR IMPROVE EFFICIENCY

NOTE: FOR USE ON PRE-POLLUTION CONTROLLED VEHICLES ONLY.

NOTE: DESIGNED FOR USE WITH HYDRAULIC FLAT TAPPET CAMSHAFTS ONLY, NOT COMPATIBLE WITH HYDRAULIC ROLLER CAMSHAFTS.

NOTE: USE WITH HYDRAULIC FLAT TAPPET CAMSHAFTS .550" MAX LIFT. (NOT COMPATIBLE WITH HYDRAULIC ROLLER CAMSHAFTS).

FEATURES:

• RECOMMENDED SPARK PLUGS ARE CHAMPION RC12YC OR EQUIVALENT 14MM X 3/4" REACH WITH FLAT GASKET SEAT
• REQUIRES HARDENED PUSHRODS
• ALL E-STREET CYLINDER HEADS ARE SOLD IN PAIRS
• DYNO TESTS SHOWED A GAIN OF 16 HP AND 11 FT-LBS OF TORQUE OVER OUR OVERSEAS COMPETITOR
• COMBUSTION CHAMBER VOLUME: 64CC
• DECK HEIGHT: 9.025"
• DECK THICKNESS: 0.5625"
• INTAKE VALVE DIAMETER: 2.02"
• EXHAUST VALVE DIAMETER: 1.60"
• HARDENED STEEL GUIDE PLATES INCLUDED
• INTAKE RUNNER VOLUME: 185CC
• ROCKER STUD DIAMETER: 0.375"
• VALVE ANGLE: 23 DEGREE
• VALVE SPRING DIAMETER: 1.46"
• VALVE SPRING MAXIMUM LIFT: 0.550"
• VALVE STEM DIAMETER: 0.3438"

YOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLETS FOR THESE CYLINDER HEADS HERE.