Product Description
527-13 Answer to most of your Question - Can be purchased in kit from (527-13K) - 572-14K includes everything between block and carb (head studs ARP #440-17 must purchase seperatley) - Assembled heads come with roller springs good up to .800in. lift, CNC chambers, porting required - Customer must supply cam specs - Machined for Jesel rockers only - Valve angle 13 degrees - Stock 440 exhaust bolt pattern - Accessory holes in stock location - Intake port volume 335cc - Exhaust port volume 118cc - Intake valve diameter 2.300 in. - 5.494 in. overall length - Exhaust valve diameter 1.88 in. - 5.522 in. overall lenght - Titanium 2.350in. intake valve is optional - 79cc combustion chamber volume - Flat mill .006in. per combusition chamber cc - Can be milled to 62cc - 4.500in.bore required for 572-13 heads - Must use spray bar valve covers (440-8S) - 2in. spring height, 1.625in. common diameter - Head gasket: Fel-Pro #1039, or copper woth o-ringring - Intake gasket Indy #218 - Exhaust header gasket Indy #222 - Head studs: ARP #440-17 - Valve guides 11/32 solid bronze - ¾ reach gasket seat spark plugs - Champion C57CX (cold) to C63CX (hot) - Accepts all indy intake manifolds - Head bold torque 70 ft. Ibs. - 7/16-14 Jesel rocker bolts 50 ft. Ibs. The ultimate wedge head for a 572in.engine. Big engines require superior air flow when 900 to 1000 horsepower is the goal. The 572-13 head is designed for a 4.500in. bore with the valves moved on center. This allows the exhaust valve to be moved and a lager diameter intake valve to be utilized. This combination delivers excellent toque, horsepower, and the reliability needed to make a bracket racer consistent, round after round. The 572-13 heads respond best when used with the NEW 440-3X big volume 4500 intake ma Nifold. These combinations produce a 72 engine that is a lightweight maxx power combination just waiting to win. -Push rod length must be checked - Accepts ball to ball pushrod - Best head to use with MP Mega Block - Best engine range 528in. to 605in.
