AFR-1066 AFR Eliminator 23 deg Racing Heads, Angle Plug, 220cc Intake, 75cc Chamber, Chev S/B (Pair)

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AFR-1066 AFR Eliminator 23 deg Racing Heads, Angle Plug, 220cc Intake, 75cc Chamber, Chev S/B (Pair)

AFR-1066

Brand:

Airflow Research (AFR)

Manufacturer's Part Number:

1066

Part Type:

Cylinder Heads

Product Line:

AFR 220cc SBC Eliminator Racing Heads

Part Number:

AFR-1066

Combustion Chamber Volume (cc):

Intake Runner Volume (cc):

220cc

Exhaust Runner Volume (cc):

80cc

Cylinder Head Style:

Assembled

Cylinder Head Material:

Aluminum

Intake Port Shape:

Rectangular

Intake Valve Diameter (in.):

2.100 in.

CNC-Machined Combustion Chamber:

Yes

CNC-Machined Intake Runner:

Yes

CNC-Machined Exhaust Runner:

Yes

Combustion Chamber Style:

Heart

Intake Port Location:

Standard

Exhaust Port Shape:

Square

Exhaust Port Location:

Standard

Spark Plug Style:

Angle

Intake Valves Included:

Yes

Exhaust Valves Included:

Yes

Exhaust Valve Diameter (in.):

1.600 in.

Valve Springs Included:

Yes

Maximum Valve Lift (in.):

0.710 in.

Camshaft Style:

Solid roller

Outside Diameter of Outer Spring (in.):

1.550 in.

Damper Spring Included:

Yes

Number of Springs Per Valve:

Dual

Retainers Included:

Yes

Retainer Material:

Chromoly steel

Locks Included:

Yes

Lock Style:

10 degree

Valve Stem Seals Included:

Yes

Rocker Arm Studs Included:

Yes

Rocker Arm Nut Thread Size:

7/16 in.-20

Rocker Arms Included:

Rocker Arm Nuts Included:

Guideplates Included:

Yes

Guideplate Pushrod Size:

5/16 in.

Valve Cover Mounting Style:

Perimeter bolt

Accessory Bolt Holes Drilled:

Yes

Intake Valve Angle:

Exhaust Valve Angle:

Valve Guides Included:

Yes

Valve Guide Material:

Bronze

Valve Seats Machined:

Yes

Valve Seat Machine Style:

3-angle

Valve Seat Material:

Ductile iron

Cylinder Head Color:

Natural

Steam Holes Drilled:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Quantity:

Sold as a pair.

Notes:

Competition CNC strip porting. Cylinder heads are based on L98 geometry, not compatible with self-aligning rocker arms. Exhaust port is raised 0.250 in. over stock. These cylinder heads are competition-ported.

AFR 220cc SBC Eliminator Racing Heads

Race-ready AFR 220cc SBC Eliminator racing heads feature 100 percent CNC-ported intakes with greater detail. They also come with 100 percent CNC-ported combustion chambers and 80cc exhaust ports with a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm, 2.080 in. intakes and 1.600 in. exhausts with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. They also offer exceptional flow characteristics, a 23 degree valve angle, and standard valve spacing. These cylinder heads are perfect for 350 to 400 c.i.d. engines in bracket drag cars, sportsman oval trackers, and highly modified street-class cars operating between 3,000 and 7,500 rpm (higher rpm ranges are possible, depending on the combination of parts).

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