Holley 300-552-1 COMPLETE Street Avenger Aluminum Cylinder Heads For Small Block Chevrolet Engines

Retail Price: $1775.99

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$1210.14

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Features

Valve Angle: 20�
Intake Runner Volume: 184cc
Exhaust Runner Volume: 68cc
Combustion Chamber Volume: 68cc
CFM Flow @ .500in Lift Measured @ 28in H2O; Intake: 223, Exhaust: 173
Intake Valve Diameter: 2.02in
Exhaust Valve Diameter: 1.60in
Spark Plug Angle: Straight
Deck Thickness: .500in
Exhaust Port Location: Stock
Has Heat Crossover Passage
Rocker Arm Mounting: Stud
Rocker Stud Diameter: 3/8in
Bronze Valve Guides
Valve Spring Installed Height: 1.780in
Maximum Lift: .600in
Valve Spring Seat Force: 132 lbs.
Aluminum Head Weight 30 lbs.
P/N 300-552-1

Smog Legal
Sold in Pairs

Tech Notes
Holley cylinder heads take a spark plug with a 3/4in reach and a flat seat.

Description
Holley aluminum (356-T6) cylinder heads are light in weight and offer heavy-duty performance. The intake and exhaust runners are configured to optimize breathing and the large, three-angle valves provide excellent intake and exhaust flow. The combustion chambers are performance designs engineered to deliver optimum power from every combustion stroke. Heavy-duty valve springs and rocker arms insure high RPM reliability and performance.

Manufacturer Information
Item: Chev Cylinder Head Set
Item Number: 300-552-1
Approximate Item Package Dimensions: 22" x 10" x 15"
Approximate Item Package Weight: 66 lbs

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