Bill Mitchell Products Cylinder Heads Aluminum Ford Small Block 023015C-0 CNC PORTED 310cc 64cc 10Degree 2.250" x 1.625" Bare (EACH)

BILL MITCHELL PRODUCTS BMP Cylinder Heads Aluminum Ford Small Block 275cc, 285cc 10Degree 2.250" x 1.625"

The BMP engineering team has developed what is the ultimate competition cylinder head for 302/351 Ford small block applications. It features a highly advantageous 10° valve angle (with parallel rocker arm mounting) and some humongous ports. The “as-cast” intake runners are available in 275 and 285cc with huge 102cc exhaust ports. Add the CNC porting option and a 310cc intake runner is yours. Designed for use with all power-adders, the 10° BMP SBC comes with provisions to use two extra head bolts per cylinder as is offered with the companion BMP SBF Aluminum block or WORLD Iron Block.

INTAKE MANIFOLD:

• Heads utilize standard Windsor Bolt Pattern. Some modifications may be required when using standard Windsor intakes.
• Custom Sheet Metal or Edlebrock #2868. Some modifications are reqired to the intake face of the cylinder head to accept the Edlebrock bolt pattern. 
• You must make sure that the intake water cross over ports line up with the holes on the head.
• For crossover water passage, you may have to drill two holes into the head to allow water flow between the intake and head.
• Use a gasket as a template locate your drill points.

TECHNICAL SPECS

• Casting ID Number: I-081A 285cc or I-081B 275cc
• Material: 355-T6 alloy high density aluminum
• Valve Seats: Intake (hardened), exhaust (hardened)
• Valves: 2.250 Intake, 1.625 Exhaust
• Valve Guides: Manganese bronze
• Spring Seats: Machined for 1.560"
• Valves: Manley stainless steel valves in assemblies
• Rocker Arms: Shaft mount system required, JESEL part#KPS371149 or CROWER part # 75157  (use of 1.73 ratio will require elongation of pushrod holes) 
• Intake Runner: 285cc, standard port location 
• Exhaust Ports: 102cc, standard location (dual exhaust bolt pattern to accommodate large custom headers) 
• Combustion Chamber: 64cc Spark Plug: 14mm .750" reach gasket style 
• Valve Job: Multi-angle intake and radiused exhaust 
• Valve Cover Rail: Raised 
• Valve Angle: Stock 10° 
• Head Gasket: Cometic  http://www.cometic.com/search.html?q=manowar
• Accessory Bolt Holes: Stock 

BMP 275cc 10 Degree Race Aluminum Head Flow Data 
Valve Lift--.300 --.400 --.500 --.600 --.700 --.800 
2.250 ------- 220 -- 283 -- 327 -- 352 -- 365 -- 347 
1.625 ------- 166 -- 204 -- 222 -- 237 -- 243 -- 246 
Methods used: Superflow 600, Flowed at 28" with a bowl blend 1" down, 1" radiused entry plate on the intake port, No exhaust tube, Using Manley Severe Duty valves.

BMP 285cc 10 Degree Race Aluminum Head Flow Data 
Valve Lift--.300 --.400 --.500 --.600 --.700 --.800 
2.250 ------- 182 -- 249 -- 308 -- 348 -- 372 -- 352 
1.625 ------- 138 -- 173 -- 202 -- 231 -- 244 -- 251 
Methods used: Superflow 600, Flowed at 28" with a bowl blend 1" down, 1" radiused entry plate on the intake port, No exhaust tube, Using Manley Severe Duty valves.

BMP 310cc 10 Degree Race Aluminum Head Flow Data CNC PORTED
Valve Lift--.300 --.400 --.500 --.600 --.700 --.800 
2.250 ------- 217 -- 281 -- 334 -- 371 -- 391 -- 396 
1.625 ------- 142 -- 175 -- 198 -- 217 -- 232 -- 241 
Methods used: Superflow 600, Flowed at 28" with full CNC Porting, 1" radiused entry plate on the intake port, No exhaust tube, Using Manley Severe Duty valves.