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Small-Block Chevy E-Street Cylinder Head 70cc Pair

Special Price $1,142.06 Regular Price $1,268.95
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The Edelbrock #5073 E-Street cylinder heads are designed for use with 1955-1986 Small-Block Chevy applications. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications.
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SKU
5073
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The Edelbrock #5073 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. For use on pre-pollution controlled vehicles only.

Documents & Installation Notes

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Specs

Manufacturer Edelbrock
Application Application Specific
UPC 00085347050734
Series E-Street
Grade Type Performance
Quantity Set of 2
Guide Plate Material Hardened Steel
Camshaft Type Flat Tappet
Horsepower 300-400 HP
Availability Note Available to Order
Warranty 12 Months
Seat Angle Exhaust 45 deg/Intake 45 deg
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Installation Notes
  • Designed for use with hydraulic flat tappet camshafts only, not compatible with hydraulic roller camshafts; Use with Hydraulic Flat Tappet Camshafts .550" max lift. (NOT Compatible with Hydraulic Roller Camshafts); Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.; Requires hardened pushrods. Not legal for sale or use on pollution controlled motor vehicles.; 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
CNC Ported No
Combustion Chamber Volume 70 cc
Deck Height 9.025 in
Deck Thickness 0.5625 in
Intake Valve Diameter 2.02 in
Exhaust Valve Diameter 1.60 in
Guide Plates Included Yes
Intake Runner Volume 185 cc
Material Aluminum
Push Rod Diameter (Suggested) 0.3125 in
Rocker Stud Diameter 0.375 in
Valve Angle 23 deg
Valve Spring Diameter 1.46 in
Valve Spring Maximum Lift 0.550 in
Valve Stem Diameter 0.3438 in