GM Performance Cylinder Head, Fast Burn, Aluminum, Bare, 62cc Chamber, 210cc Intake Runner, Chevy, Small Block, Each (PART #GMP-12497186)

These CNC-machined aluminum Fast Burn cylinder heads from GM Performance are designed for 1958-2000 283-400 c.i.d. Chevy V8s. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power. No additional porting is required--GM Performance Parts' cast-ported technology gives these heads maximum performance right out of the box. They're drilled and tapped for Vortec and raised port manifolds, they accept flange-mount or centerbolt-style valve covers, and will support in excess of 500 HP.

SPECIFICATIONS

Brand GM Performance
Manufacturer's Part Number 12497186
Part Type Cylinder Heads
Product Line GM Performance Fast Burn Cylinder Heads
Combustion Chamber Volume (cc) 62
Intake Runner Volume (cc) 210cc
Cylinder Head Style Bare
Cylinder Head Material Cast aluminum
Intake Valve Diameter (in.) 2.000 in.
CNC-Machined Combustion Chamber No
CNC-Machined Intake Runner No
CNC-Machined Exhaust Runner No
Intake Port Location Standard
Exhaust Port Shape D-port
Exhaust Port Location Standard
Spark Plug Style Angle
Intake Valves Included No
Exhaust Valves Included No
Exhaust Valve Diameter (in.) 1.550 in.
Valve Springs Included No
Damper Spring Included No
Retainers Included No
Locks Included No
Valve Stem Seals Included No
Rocker Arm Studs Included No
Rocker Arms Included No
Rocker Arm Nuts Included No
Guideplates Included No
Accessory Bolt Holes Drilled Yes
Valve Guides Included Yes
Valve Guide Material Bronze
Valve Seats Machined No
Valve Seat Material Steel
Cylinder Head Color Natural
Steam Holes Drilled No
Oiling Style Through pushrod
Machined for O-Ring No
Heat Crossover No
Remanufactured No
Quantity Sold individually.