Description
The ultimate wedge head for 572″ engine. Big engines require superior air flow when 900 to 1,000 horsepower is the goal. The 572-13 head is designed for a 4.500″ bore with the valves moved on center. This allows the exhaust valve to be moved and a larger diameter intake valve to be utilized. This combination delivers excellent torque, horsepower and reliability needed to make a bracket racer consistant, round after round.
The 572-13 heads respond best when used with the 400-3X big volume 4500 intake manifold. If you are searching for more power select the 440-15 Indy tunnel ram intake manifold. These combinations produce a 572 engine that is a lightweight Maxx power combination just waiting to win.
- Machined for Jesel rockers only
- 13 degree valve angle
- Stock 440 exhaust pattern
- Accessory holes in stock location
- 335cc Intake port volume (not CNC ported)
- 118cc Exhaust port volume (not CNC ported)
- Intake valve diameter 2.300″- 5.494″ overall length
- Titanium 2.350″ Intake valve optional
- 79cc combustion chamber volume
- Can be milled to 62cc
- Must use spray bar valve covers
- 2″ spring height, 1.625″ common diameter
- Head gasket: Fel-Pro #1039 or Cometic multi layer
- Intake gasket #218
- Exhaust header gasket #222
- Head Studs: ARP #440-17
- Valve guides 11/32 solid bronze
- 3/4 reach gasket seat spark plugs
- Accepts all Indy Manifolds
- Head studs torqued 70 ft lbs
- 7/16-14 Jesel rocker bolts 50 ft lbs
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