{"product_id":"chevy-small-block-angled-plug-aluminum-cylinder-head","title":"Chevy Small Block Angled Plug Aluminum Cylinder Head","description":"\u003cp\u003eBuild your Small Block Chevy engine with a bare aluminum cylinder head engineered for custom street and performance applications. Featuring 198cc intake runners, 64cc heart-shaped combustion chambers, 2.02\" intake valves, 1.60\" exhaust valves, and angled spark plug configuration, this cylinder head is designed to support improved airflow and performance across a wide range of Small Block Chevy engine combinations.\u003c\/p\u003e\n\u003cp\u003eThe 198cc intake runner design provides an excellent balance of airflow and air velocity, making this cylinder head well suited for 327, 350, 355, 383 stroker, and 400 Small Block Chevy builds. Combined with high-flow intake and exhaust ports, these heads help improve cylinder filling, throttle response, torque production, and horsepower potential throughout the RPM range.\u003c\/p\u003e\n\u003cp\u003eAs a bare casting, this cylinder head allows builders to select springs, retainers, seals, and valvetrain components that match their specific camshaft profile and performance goals. This flexibility makes it ideal for custom engine builds, machine shop assembly, street performance vehicles, hot rods, muscle cars, and street\/strip applications.\u003c\/p\u003e\n\u003cp\u003eConstructed from lightweight aluminum, this cylinder head helps reduce weight while dissipating heat more efficiently than traditional cast iron heads. Whether you're upgrading a street-driven 350, building a 383 stroker, or assembling a performance Small Block Chevy engine, this bare aluminum cylinder head provides a strong foundation for increased airflow and reliable performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCylinder Head Technology\u003c\/strong\u003e\u003cbr\u003eDesigned with 198cc intake runners, 64cc heart-shaped combustion chambers, 2.02\" intake valves, 1.60\" exhaust valves, and angled spark plugs, this aluminum cylinder head is engineered to improve airflow and combustion efficiency in Small Block Chevy applications. The bare casting configuration allows builders to select the exact valvetrain components required for their intended camshaft and RPM range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Benefits\u003c\/strong\u003e\u003cbr\u003eThe 198cc runner design provides a strong balance of airflow capacity and intake velocity, making this cylinder head suitable for street performance, muscle car, hot rod, and stroker engine combinations. Aluminum construction helps reduce weight and dissipate heat efficiently, supporting improved throttle response, torque production, and horsepower potential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eCHEVROLET SMALL BLOCK V8 GEN. I\u003cbr\u003e• 4.3L \/ 262 in³\u003cbr\u003e• 4.3L \/ 265 in³\u003cbr\u003e• 4.4L \/ 267 in³\u003cbr\u003e• 4.6L \/ 283 in³\u003cbr\u003e• 4.9L \/ 302 in³\u003cbr\u003e• 5.0L \/ 305 in³\u003cbr\u003e• 5.0L \/ 307 in³\u003cbr\u003e• 5.4L \/ 327 in³\u003cbr\u003e• 5.7L \/ 350 in³\u003cbr\u003e• 6.6L \/ 400 in³\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003eChevrolet Camaro\u003cbr\u003eChevrolet Chevelle\u003cbr\u003eChevrolet Nova\u003cbr\u003eChevrolet El Camino\u003cbr\u003eChevrolet Monte Carlo\u003cbr\u003eChevrolet Impala\u003cbr\u003eChevrolet C10\u003cbr\u003eChevrolet C\/K Series Trucks\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003e• Fits Gen I Small Block Chevy engines\u003cbr\u003e• Angled spark plug design\u003cbr\u003e• Bare cylinder head casting requires final assembly\u003cbr\u003e• Sold individually (quantity of 2 required per engine)\u003cbr\u003e• Verify piston-to-valve clearance and valvetrain compatibility before assembly\u003cbr\u003e• Verify header compatibility for angled spark plug applications\u003cbr\u003e• Not compatible with LS, LT, or Big Block Chevy engines\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003cbr\u003eIntake Runner: 198 cc\u003cbr\u003eCombustion Chamber Volume: 64 cc\u003cbr\u003eCombustion Chamber Style: Heart\u003cbr\u003eCylinder Head Material: Aluminum\u003cbr\u003eCylinder Head Finish: Natural\u003cbr\u003eAssembled: No\u003cbr\u003eIntake Valve Size: 2.02\"\u003cbr\u003eExhaust Valve Size: 1.60\"\u003cbr\u003eValve Stem Diameter: 11\/32\"\u003cbr\u003eValve Guide Material: Bronze\u003cbr\u003eIntake Port Size: 2.10\" x 1.18\"\u003cbr\u003eExhaust Port Size: 1.4\" x 1.4\"\u003cbr\u003eIntake Port Shape: Rectangle\u003cbr\u003eExhaust Port Shape: Square\u003cbr\u003eIntake Port Location: Standard\u003cbr\u003eExhaust Port Location: Standard\u003cbr\u003eMaximum Spring Diameter: 1.625\"\u003cbr\u003eExhaust Crossover: No\u003cbr\u003eSpark Plug Style: Angled\u003cbr\u003eWeight: 19 lbs (per head)\u003cbr\u003eQuantity: Sold Individually\u003c\/p\u003e","brand":"Top Street Performance","offers":[{"title":"Default Title","offer_id":49562248282408,"sku":"JM4100","price":605.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/jm4100a_004_1.jpg?v=1732641186","url":"https:\/\/www.topstreetperformance.com\/products\/chevy-small-block-angled-plug-aluminum-cylinder-head","provider":"Top Street Performance","version":"1.0","type":"link"}