
50459 E-Street Cylinder Heads for Big Block Chevy
- Big Block Chevy 396-502ci
- Valve Springs for Hydraulic Flat Tappet
- Port Volume: 290cc/110cc
- Valve Size: 2.19"/1.88"
- 110cc Combustion Chambers
- Max Lift: .700"
- Assembled, Sold Individually
- Entry Level Street Performance Upgrade
- A356 Aluminum
- Edelbrock Quality And Performance
- Hardened sping cups
- Heli-Coil threaded inserts in rocker stud bosses for strength
- Made In U.S.A.
Specifications:
- Chamber Volume: 110cc
- Deck Thickness: 9/16"
- Valve Spring Diameter: 1.55"
- Max Lift: .700"
- Valve Spring Installed Height: 1.750"
- Rocker Studs: 7/16" with Guide Plate
- Pushrod Diameter: 3/8"
- Intake Port Volume: 290cc
- Intake Valve Diameter: 2.19"
- Exhaust Port Volume: 110cc
- Exhaust Valve Diameter: 1.88"
Valve Lift Intake Exhaust .100' 74 71 .200' 143 128 .300' 207 153 .400' 250 178 .500' 284 200 .600' 309 218 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
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.

![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)









