The Edelbrock 77189 is a Victor Jr. 20 degree aluminum cylinder head for small-block Ford 289-351W V8s. It has 210 cc intake ports, 75 cc exhaust ports raised 0.130 in, 60 cc combustion chambers and a 20 degree valve angle, with CNC gasket-matched port entries and exits and blended valve bowls. Spark plug holes and valves are in the stock location, and the valve cover rail is raised 0.150 in. It comes complete with 2.05 in intake and 1.60 in exhaust valves, retainers and valve springs for hydraulic roller camshafts, with 0.650 in maximum lift. Sold as a single head.
Notes:
- Valve springs are for hydraulic roller camshafts, with 0.650 in maximum lift.
- Compatible with stock valvetrain geometry and pistons.
- A relief in the head allows most roller lifters to be changed without removing the head.
- Deck thickness: 5/8 in. Rocker stud diameter: 7/16 in. Pushrod diameter: 5/16 in (guide plate slot width).
- Spark plug: 14 mm x 3/4 in reach, flat gasket seat, heat range to suit the application.
- Sold individually; order two for a V8.
Specifications:
- Brand: Edelbrock
- Part Number: 77189
- Part Type: Engine Cylinder Head
- Series: Victor Jr.
- Material: Aluminum
- Intake Valve Diameter: 2.05 in
- Valve Angle: 20 Degree
- Intake Runner Volume: 210 cc
- Guide Plate Material: Hardened Steel
- Camshaft Type: Hydraulic Roller
- Horsepower: 350-550 HP
- Seat Angle: Exhaust 45 deg/Intake 45 deg
- Pushrod Diameter: 0.3125 (5/16) in
- Rocker Stud Diameter: 0.4375 (7/16) in
- Valve Spring Diameter: 1.55 in
- Valve Spring Maximum Lift: 0.650 in
- Valve Stem Diameter: 0.3438 in
- Deck Thickness: 0.625 in
- Guide Plates Included: Yes
- Retainer Included: Yes
- Valve Included: Yes
- Combustion Chamber Volume: 60 cc
- CNC Ported: No
- Exhaust Valve Diameter: 1.60 in
- EGR Port: No
- Valve Springs Included: Yes
- Exhaust Runner Volume: 75 cc
- Construction Type: Complete
- Guide Material: Manganese Bronze
- Seat Material: Ductile Iron
- Sold as: Each
- Manufacturer warranty: 12 months
Engine Applications
- Ford Small-Block: 289 (4.7L)-351W (5.8L)
Emissions Status
- For racing use only.
Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
FAQ
What engines does the Edelbrock 77189 fit?
Small-block Ford V8s from 289 to 351W cubic inches.
What are the port and chamber sizes of the 77189?
210 cc intake ports, 75 cc exhaust ports raised 0.130 in, and 60 cc combustion chambers.
What camshaft is the 77189 set up for?
It comes with valve springs for hydraulic roller camshafts, with 0.650 in maximum valve lift.
Does the 77189 work with stock rocker geometry?
Yes. Spark plug holes and valves are in the stock location, and the head is compatible with stock valvetrain geometry and pistons.
Is the Edelbrock 77189 street legal?
It is not 50-state legal. Its emissions status is for racing use only.
California Proposition 65: 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.
