ProMaxx Performance Maxx 180 Ford SB (289-351W) Aluminum Heads
Made right here in the U.S.A. This performance head flows 267 cfm at only .550" lift. Big flow numbers and a small runner size produce air speed and power. Ultra smooth castings made of Grade A 356-T6 aluminum are chamber designs. 5 angle competition valve job, diamond honed bronze guides, and hand bowl blending.
Assemblies include 2.020"/1.600" stainless steel valves, performance valve springs (1.450" hyd. roller up to .600" lift), 3/8" screw-in studs and adjustable guide plates.
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: 180cc
CNC Machined Intake Port: No
Intake Port Flow: 267 cfm @ .550"
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Port Dimensions:
Suggested Intake Gaskets: Fel-Pro 1262
Exhaust Port Volume: 66cc
CNC Machined Exhaust Port: No
Exhaust Port Flow: 199 cfm @ .600"
Exhaust Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Dimensions:
Suggested Exhaust Gaskets: Fel-Pro 1415
Suggested Spark Plug:
Valve Guides: Yes
Valve Guide Spacing: Standard
Valve Stem Diameter: 11/32"
Valve Seats: Harden Steel
Valve Job: Multi-Angle
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, 1.45" Single with Damper 145 @ 1.800", 325 @ 1.200"
Valve Spring Application: Hydraulic Roller, .600" max lift
Valve Springs Retainers Included: Yes, Steel
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 154-3701 (302), 154-3603 (351W)
Suggested Head Studs:
Suggested Stud Girdle: Jomar 1126
Head Bolt Torque with Oil: 80 ft lbs
Rocker Stud Torque with Oil:
Intake Bolt Torque with Oil:
Manufacturer: ProMaxx Performance
Manufacturer's Part Number: 9175
Weight:
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Pair |