
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- 1986 & Earlier Small Block Chevy
- Port Volumes: 185cc/60cc
- 70cc Combustion Chambers
- Bare, Sold In Pairs
Specifications:
- Chamber Volume: 64cc
- Deck Thickness: 9/16"
- Valve Spring Diameter: 1.25"
- Max Lift: .550"
- Valve Spring Installed Height: 1.750"
- Rocker Studs: 3/8" with Guide Plate
- Pushrod Diameter: 5/16"
- Intake Port Volume: 185cc
- Intake Valve Diameter: 2.02"
- Exhaust Port Volume: 60cc
- Exhaust Valve Diameter: 1.60"
Technical Notes:
Recommended spark plugs are Champion RC12YC or equivalent 14mm x ¾" reach with flat gasket seat. Requires hardened pushrods. Staight plug heads.
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2OValve Lift .100" .200" .300" .400" .500" .600" .700" Intake 63 125 182 225 248 249 - Exhaust 51 99 131 153 163 168 -
Affordable Aluminum Performance Built for the Street
Edelbrock E-Street cylinder heads deliver proven aluminum performance for street-driven muscle cars, hot rods, and performance trucks. Manufactured in the USA from A356 T-6 heat-treated aluminum, E-Street heads are engineered to provide improved airflow, efficient combustion chamber design, and reliable durability for entry-level to moderate-performance engine combinations. Larger-than-stock intake and exhaust runners help increase horsepower, broaden torque curves, and improve throttle response while maintaining excellent street manners in idle-to-5,500 RPM operating ranges. Fully assembled with premium components including stainless steel valves, manganese bronze valve guides, hardened spring cups, and screw-in rocker studs, Edelbrock E-Street cylinder heads offer enthusiasts an affordable upgrade with the quality, fitment, and engineering expected from one of the most trusted names in performance engine components.



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