Small Block Chevy
- Chamber Volume: 64cc
- Deck Thickness: 9/16"
- Valve Spring Diameter: 1.46"
- 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"
Use with hydraulic camshafts less than .550" max lift. Not compatible with hydraulic roller camshafts. 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" H2O
QUALITY AND AFFORDABLE PERFORMANCE!
E-Street cylinder heads are designed for entry level street performance engines operating in the idle to 5,500 rpm range. Manufactured in the USA, these heads feature the quality and details of higher priced cylinder heads, starting with A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality.
Their modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through an engine; these features improve efficiency, resulting in more horsepower, broad torque and improved mileage potential.
Every E-Street is assembled with manganese bronze valve guides, powder metal interlocking valve seats, stainless steel one-piece valves with hardened tips, 1.25" or 1.55" diameter valve springs, 3/8" or 7/16" screw-in studs and hardened guide plates. As added value, E-Street heads include hardened valve springs cups to prevent casting wear and Heli-coil™ threaded inserts in the rocker stud bosses for proper torque; these are the quality details that most low-cost competitors leave out of their heads. Made In The USA!Features:
JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.
If these aren't compatible with an oem roller 350 (1989 TPI) which cylinder heads are and similar specs?
Do the flowtech 11500FLT fit these heads?
what long tube headers do you recommend using on these with a 2.5" collector ?
Can I build 400 plus horse using these heads with the proper Cam and intake I'm running about 10.5 to 1 compression ratio with this size combustion chamber i havr this head on my motor but engine is noy compleat
These are listed for 400ci 6.6 small block chevy are they drilled for steam holes?
will these work on a 1985 305v8
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.