{"product_id":"chevy-small-block-angle-plug-aluminum-cylinder-head","title":"Chevy Small Block Angled Plug Aluminum Cylinder Head","description":"\u003cp\u003eUpgrade your Small Block Chevy with bare aluminum cylinder heads engineered to improve airflow, combustion efficiency, and horsepower potential. Featuring 198cc intake runners, 64cc combustion chambers, 2.02\" intake \/ 1.60\" exhaust valves, these heads are built for street, strip, and performance engine builds that need better breathing than stock castings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImproved Airflow \u0026amp; Power Potential\u003c\/strong\u003e\u003cbr\u003eOptimized runner and chamber design helps move more air through the engine, improving throttle response, torque, and top-end horsepower potential across the RPM range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBare Head Build Flexibility\u003c\/strong\u003e\u003cbr\u003eBare cylinder head configuration gives builders the flexibility to select valves, springs, retainers, and hardware matched to the exact camshaft, RPM range, and power goal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAluminum Construction\u003c\/strong\u003e\u003cbr\u003eLightweight aluminum construction reduces weight compared to factory iron heads while improving heat dissipation for more consistent performance under demanding conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt for Street \u0026amp; Performance Builds\u003c\/strong\u003e\u003cbr\u003eIdeal for performance rebuilds, restorations, and upgraded engine combinations. Always verify piston-to-valve clearance, camshaft compatibility, intake manifold fit, and header clearance before final installation.\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 (1967–1995 SBC equipped)\u003cbr\u003eChevrolet Chevelle (1964–1977 SBC)\u003cbr\u003eChevrolet Nova (1962–1979 SBC)\u003cbr\u003eChevrolet C10 \/ C\/K Trucks (1960–1995 SBC)\u003cbr\u003eChevrolet Impala \/ Caprice (SBC equipped)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFits Gen I Small Block Chevy engines (1955–1995).\u003c\/p\u003e\n\u003cp\u003eFits perimeter-bolt valve covers and pre-Vortec intake manifolds.\u003c\/p\u003e\n\u003cp\u003eCompatible with common SBC stroker builds (383 \/ 406).\u003c\/p\u003e\n\u003cp\u003eAngle plug design may require compatible headers or spark plug wire routing for proper clearance.\u003c\/p\u003e\n\u003cp\u003eCylinder head sold individually (purchase quantity of 2 required for complete engine).\u003c\/p\u003e\n\u003cp\u003eVerify intake manifold type, valve lift and spring requirements, and piston-to-valve clearance.\u003c\/p\u003e\n\u003cp\u003eNot compatible with LT1 \/ LT4 Gen II engines, LS-based engines, 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-angle-plug-aluminum-cylinder-head","provider":"Top Street Performance","version":"1.0","type":"link"}