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Airflow Research 2101-1 SBC Aluminum Cylinder Heads

Manufacturer

Picture for manufacturer Airflow Research

Part Number

2101-1
7 reviews
Sale Price

$3,812.49

1 left at this price

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Usually delivered within 2 days

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Product Details

The Airflow Research 2101-1 aluminum cylinder heads are precision-engineered performance heads designed for small block Chevrolet engines. These competition-grade cylinder heads feature AFR's proprietary CNC porting technology and premium metallurgy to deliver superior airflow characteristics and durability under demanding conditions.

Key Features:

  • CNC-machined aluminum construction for consistent quality and reduced weight
  • Optimized port design for improved airflow and power gains
  • Competition-proven design suitable for street/strip and racing applications
  • Premium valve train components and precision machining
  • Direct bolt-on installation for small block Chevy applications
  • Engineered for maximum performance and reliability

AFR cylinder heads are manufactured in the USA using advanced CNC machining processes to ensure precise tolerances and optimal combustion chamber geometry. These heads are ideal for enthusiasts seeking significant horsepower and torque gains from their small block Chevrolet engine builds.

Products specifications

Accessory Bolt Holes Drilled

Yes

Calculator

Compression Calculator

CNC-Machined Combustion Chamber

Yes

CNC-Machined Exhaust Runner

Yes

CNC-Machined Intake Runner

Yes

Combustion Chamber Style

Heart

Combustion Chamber Volume (cc)

121

Cylinder Head Finish

Natural

Cylinder Head Material

Aluminum

Cylinder Head Style

Assembled

Damper Spring Included

Yes

Exhaust Port Shape

Round

Exhaust Runner Volume (cc)

124cc

Exhaust Valve Angle

15/4

Exhaust Valve Diameter (in)

1.880 in.

Exhaust Valves Included

Yes

Guideplates Included

Yes

Heat Crossover

No

Intake Port Location

Standard

Intake Port Shape

Rectangular

Intake Runner Volume (cc)

325cc

Intake Valve Angle

24/4

Intake Valve Diameter (in)

2.300 in.

Intake Valves Included

Yes

Lock Style

10 degree

Locks Included

Yes

Machined for O-Ring

No

Maximum Valve Lift (in)

0.750 in.

Notes

Cast heads feature a CNC bowl blend but are not fully CNC ported. 1 in. longer head bolts required on the four bottom exhaust bolt holes. These cylinder heads are competition ported.

Number of Springs Per Valve

Dual

Oiling Style

Through pushrod

Outside Diameter of Outer Spring (in)

1.625 in.

Quantity

Sold as a pair.

Retainer Material

Chromemoly steel

Retainers Included

Yes

Rocker Arm Nut Thread Size

7/16-20 in.

Rocker Arm Nuts Included

No

Rocker Arm Studs Included

Yes

Rocker Arms Included

No

Steam Holes Drilled

No

Valve Cover Mounting Style

Perimeter bolt

Valve Guide Material

Bronze

Valve Seat Machine Style

5-angle

Valve Seat Material

Ductile iron

Valve Seats Machined

Yes

Great customer service and support. a live person answered the phone and was able to reccomend the correct product for my vehicle. Best price online too........i woould most absolutely use them again! Great company!

Right item, right price !

Lowest prices of what I was looking for and super fast shipping!!

Good Website. User Friendly. Able to quickly find and determine if part would fit my car. Like the pricing and shipping options (unlike some others that only offer ground shipping)

Great prices, great service, fast shipping!

SO far, so good. We ordered a new Weathertech Trunk Liner from Autoplicity for our new VW SportWagen. We were pleased to find exactly what we were looking for for $50 less than other locations.

Great merchant! I would most certainly would do business with them again. Customer Service was extremely helpful and my order shipped quickly.

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