$1500

Edelbrock Oval Port BBC Aluminum Cylinder Heads

110cc Combustion Chambers 290cc Intake Ports  110cc Exhaust Ports

2.19 In Valve 1.88 Ex Valve

Airflow Chart  Intake ports are averages between the short and long port lenght

Lift Value:	Intake Flow (CFM): 290cc		Exhaust Flow (CFM): 110cc
0.100	74		71
0.200	143		128
0.300	207		153
0.400	250		178
0.500	284		200
0.600	305		218

NOTE: Tests conducted at 28" of water (pressure).

  $1500

Edelbrock Rectangle Port BBC Aluminum Cylinder Heads

118cc Combustion Chambers 315cc Intake Ports  110cc Exhaust Ports

2.19 In Valve 1.88 Ex Valve

Airflow Chart

Lift Value:	Intake Flow (CFM): 300/315cc		Exhaust Flow (CFM): 110cc
0.100	76		70
0.200	146		132
0.300	211		156
0.400	255		181
0.500	290		207
0.600	310		228

NOTE: Tests conducted at 28" of water (pressure).

All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability, plus hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance. Performer RPM heads are fully assembled with stainless steel intake and exhaust valves with undercut stems, 2-ring positive oil control seals, rocker studs, hardened steel guideplates, valve springs, retainers, and keepers.