This head is an unassembled bare casting that has been machined with valve guides and valve seats installed. This head does NOT include rocker studs, valves, springs retainers, or locks.

Features

• High flowing intake port with over 279 CFM of flow
• Competition valve job with blended bowls
• Strong casting from A-356 aluminum is easily repairable
• Accessory Bolt Holes are Drilled

Cylinder Head Specifications

• Intake Port Volume: 215 cc
• Combustion Chamber Volume: 64 cc
• Valve Sizes: Designed for 2.080 in. Intake / 1.600 in. Exhaust with 11/32 in. Stem Diameter (Valves Not Included)
• Spark Plug Configuration: Straight
• Manganese Bronze Valve Guides

Installation Notes

• Torque Heads: 70 ft.-lbs.
• Torque Rocker Studs: 40-45 ft.-lbs.
• Recommended Intake Gasket: Fel-Pro 375-1205
• Recommended Head Gaskets: Fel-Pro 375-1003 (350 ci) / 375-1004 (400 ci) or Cometic 245-C5399 (350 ci) / 245-C5403 (400 ci)
• Recommended Exhaust Gaskets: Fel-Pro 375-1406
• Recommended Head Bolts: ARP 070-134-3601 or Manley 660-42313
• Recommended Head Studs: ARP 070-134-4001 (6-point)
• Recommended Intake Manifold: Brodix HV 1014 (158-1014) / HV 1016 (158-1016)
• Spark Plug Specs: 14 mm Thread, .750 in. (3/4 in.) Reach, Gasket Seat
• Valve Angle: 23 Degree
• Angle Milling: .0078 in. per cc
• Flat Milling: .0060 in. per cc
• Pushrod Slots: Standard
• Stud Girdle: Standard
• Rocker Arms: Standard
• Lifters: Standard
• Exhaust Pattern: Standard
• Valve Centerline: Standard
• Spring Pockets: May not be cut any larger or deeper than 1.550 in. 

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.

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