Edelbrock E-Street Ford SB Aluminum Heads Designed for street performance engines, ideal for operating in the idle to 5,500 rpm range. Manufactured in the USA, these heads feature 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 feature larger than stock intake and exhaust ports. Fully assembled for flat tappet hydraulic applications with up to .550" lift. Note: 289-302 with 7/16" bolts require bolt bushings #9680.
Part Type: Cylinder Head Application: Ford Small Block (289-351W) Cylinder Head Material: Aluminum Bare or Assembled: Assembled Combustion Chamber Size: 60cc CNC Machined Combustion Chambers: No Intake Valve Angle: 20 Exhaust Valve Angle: 20 Intake Port Volume: 170cc CNC Machined Intake Port: No Intake Port Flow: 249 cfm @ .600" lift/ 28" Intake Port Location: Standard Intake Port Shape: Rectangular Intake Port Dimensions: Suggested Intake Gaskets: Exhaust Port Volume: 60cc CNC Machined Exhaust Port: No Exhaust Port Flow: 168 cfm @ .600" lift/ 28" Exhaust Port Location: Standard Exhaust Port Shape: Square Exhaust Port Dimensions: Suggested Exhaust Gaskets: Suggested Spark Plug: 14mm x 3/4" reach, gasket seat Valve Guides: Manganese bronze Valve Guide Spacing: Valve Stem Diameter: 11/32" Valve Seats: Hardened, interlocking powder metal Valve Job: Intake Valve Diameter: 2.020" Intake Valve Included: Yes Exhaust Valve Diameter: 1.600" Exhaust Valve Included: Yes Suggested Valve Length: Valve Spring Pockets: Valve Springs Included: Yes, 1.460" Valve Spring Application: Hydraulic Flat Tappet, 110lbs. Seat, 290lbs. Open, .550" max lift Valve Springs Retainers Included: Yes Valve Locks Included: Yes (7 degree) Valve Seals Included: Yes Rocker Studs Included: Yes Guide Plates Included: Yes Valve Cover Mounting Style: Perimeter bolt Steam Holes Drilled: No Heat Crossover: No Suggested Head Bolts: ARP 254-3708 Suggested Head Studs: Suggested Stud Girdle: Jomar 1126 Head Bolt Torque with Oil: 7/16": Upper Row 80 ft./lbs., Lower Row 70 ft./lbs. 1/2": Upper Row 110 ft./lbs., Lower Row 100 ft/lbs. Rocker Stud Torque with Oil: 45 ft./lbs. Intake Bolt Torque with Oil: 16-18 ft./lbs. Manufacturer: Edelbrock Manufacturer's Part Number: 5025 Weight: Warranty: Race Application, No warranty expressed or implied Quantity: Sold as Pair |