AFR Mongoose Strip Cylinder Heads for GM LS

Increase performance and save yourself the hassle of having the stock heads reworked by replacing them with AFR’s 225cc Mongoose Strip Cylinder Heads.

What They Are: AFR 225cc LSX Mongoose Strip Cylinder Heads for GM LS

AFR LS Mongoose Cylinder HeadsWhy They’re Cool: The new combustion chamber design with a double quench area generates huge low and mid-lift airflow numbers. The heads are ideal for aggressive, normally aspirated 396-427 cubic inch stroker engines and feature 2.08 inch (intake) and 1.60 inch (exhaust) valves, 225cc intake/85cc exhaust runners, ductile iron interlocking valve seats, and three combustion chamber volume options (62cc, 65cc, or 72cc). Cylinder heads are available fully assembled or as bare castings.


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Applications: GM LS1, LS2, and LS6

Where to Get Them: Order online at or call Summit Racing at 1-800-230-3030

Other Stuff Worth Knowing: Air Flow Research (AFR) has been engineering cylinder heads that deliver unmatched airflow and power output for over thirty years. Manufactured with advanced porting technology, AFR heads are flow-tested and subjected to a rigorous quality control process to ensure maximum performance in all applications.

Established in 1968, Summit Racing Equipment is the leading high performance parts and accessories company. Summit Racing offers the largest selection, lowest prices, and best customer service in the high performance industry via catalogs, Internet, and Retail Super Stores. The company is headquartered in Tallmadge, Ohio with retail locations in Tallmadge, Ohio; Sparks, Nevada; and McDonough, Georgia.