Engine Cylinder Head

The Edelbrock part #61209 Small Block Chevy E-CNC 225 cylinder head offers the ultimate performance. This cylinder head is fully CNC ported for maximum horsepower and torque, making them ideal for high-performance's street and racing applications. They also feature high-quality lightweight valve springs and heavy duty hardware for maximum lift. E-CNC S/B CHEVY FEATURES: – Features fully CNC machined intake ports, combustion chambers and exhaust ports for improved performance – Maintains the stock 23deg valve angle and intake flange bolt pattern for use with 1986 and earlier intake manifolds – Delivers up to 30-60 horsepower over Performer RPM cylinder head – #61205 & #61209 features 7/16" studs and angled spark plugs – Ideal for high Performance's street and racing applications

Additional Attributes:

GTIN: 00085347612093
Camshaft Type: Mechanical Roller
CNC Ported: Yes
Combustion Chamber Volume: 64
Construction Type: Complete
Deck Thickness: 0.5625
EGR Port: No
Exhaust Port Location: +.200
Exhaust Runner Volume: 88
Exhaust Valve Diameter: 1.60
Family: E-CNC
Grade Type: Performance
Guide Material: Manganese Bronze
Guide Plate Material: Hardened Steel
Guide Plates Included: Yes
Head Casting Number: N/A
Horsepower: 500-600
Intake Runner Volume: 225
Intake Valve Diameter: 2.10
Material: Aluminum
Push Rod Diameter: (Suggested) 0.3125
Quantity: Sold Individually
Retainer Included: No
RGL: WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Rocker Arm Stud Diameter: 0.4375
Rotor Center Bore Inside Diameter: angled
Seat Angle: Exhaust 45 deg/Intake 45
Seat Material: Ductile Iron
Series: E-CNC
Valve Angle: 23
Valve Included: Yes
Valve Spring Diameter: 1.58
Valve Spring Maximum Lift: 0.700
Valve Springs Included: Yes
Valve Stem Diameter: 0.3110

Extended Information:

Emissions : Racing or Pre-Emissions Use Only
Life Cycle Status: Obsolete

Packaging:

Quantity of Each: 1
Package UOM: EA
Dimension: 22.1875 x 10.125 x 7.1875 inches
Weight: 33 PG