{"id":9394937725153,"title":"Edelbrock 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit","handle":"ede7521-kit","description":"\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eEdelbrock designed this 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit for the small-block 302 CID Ford V8 or 331-347 stroker applications. It provides optimum performance in the 1,500-6,500 RPM range with a serious look of horsepower under the hood. It is the perfect manifold for hot rodders, street machine enthusiasts, bracket racers or builders.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eThe Air-Gap design features an open-air space under the plenum that separates the runners from the hot engine. This results in a cooler, denser charge for more power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eThe 7521 RPM Air-Gap features larger runners (7% at the plenum entries) than the standard 7121 Performer RPM design that is beneficial to larger CID stroker engines. The 7521 includes nitrous bosses but no provision for exhaust heated chokes and no exhaust crossover. Edelbrock carbs will work with Ford automatic overdrive trans (AOD) when used with Lokar bracket SRK-4000.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003e\u003cspan style=\"font-size: 12pt; font-family: 'Times New Roman', serif;\"\u003eThis kit includes the intake manifold, manifold and carb gaskets, intake bolts and carb studs.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12pt; font-family: 'Times New Roman', serif; color: black; text-decoration: underline;\"\u003eEdelbrock 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eManifold Style: Dual Plane\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eRPM Range: 1500-6500\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eManifold Material: Aluminum\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eCarb Pad Height: 4.90 in.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eFinish: Natural\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eQuantity: Sold as a kit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eThe Edelbrock name has been a staple of the automotive performance industry since the 1940’s. Their product line includes virtually everything under the hood, from individual components to complete engines. This makes Edelbrock one of the most recognized as well as trusted brands in the racing and performance world!\u003c\/span\u003e\u003c\/p\u003e","published_at":"2026-02-26T14:00:43-06:00","created_at":"2026-02-25T09:36:14-06:00","vendor":"EDELBROCK","type":"Intake Manifold Combos","tags":[],"price":53195,"price_min":53195,"price_max":53195,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48019455639777,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"EDE7521-Kit","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Edelbrock 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit","public_title":null,"options":["Default Title"],"price":53195,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"085347899517","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.winnerscircle.com\/cdn\/shop\/files\/7521-kit.jpg?v=1772135919"],"featured_image":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/7521-kit.jpg?v=1772135919","options":["Title"],"media":[{"alt":"Edelbrock 7521-Kit SBF RPM Air-Gap Intake Manifold \u0026 Install Kit, 302-331-347 Small Block Ford engines, 1500-6500 RPM, dual plane, includes gaskets \u0026 bolts","id":39561105244385,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/7521-kit.jpg?v=1772135919"},"aspect_ratio":1.0,"height":1500,"media_type":"image","src":"\/\/www.winnerscircle.com\/cdn\/shop\/files\/7521-kit.jpg?v=1772135919","width":1500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eEdelbrock designed this 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit for the small-block 302 CID Ford V8 or 331-347 stroker applications. It provides optimum performance in the 1,500-6,500 RPM range with a serious look of horsepower under the hood. It is the perfect manifold for hot rodders, street machine enthusiasts, bracket racers or builders.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eThe Air-Gap design features an open-air space under the plenum that separates the runners from the hot engine. This results in a cooler, denser charge for more power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003eThe 7521 RPM Air-Gap features larger runners (7% at the plenum entries) than the standard 7121 Performer RPM design that is beneficial to larger CID stroker engines. The 7521 includes nitrous bosses but no provision for exhaust heated chokes and no exhaust crossover. Edelbrock carbs will work with Ford automatic overdrive trans (AOD) when used with Lokar bracket SRK-4000.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif;\"\u003e\u003cspan style=\"font-size: 12pt; font-family: 'Times New Roman', serif;\"\u003eThis kit includes the intake manifold, manifold and carb gaskets, intake bolts and carb studs.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12pt; font-family: 'Times New Roman', serif; color: black; text-decoration: underline;\"\u003eEdelbrock 7521-Kit SBF RPM Air-Gap Intake Manifold and Install Kit Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eManifold Style: Dual Plane\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eRPM Range: 1500-6500\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eManifold Material: Aluminum\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eCarb Pad Height: 4.90 in.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eFinish: Natural\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eQuantity: Sold as a kit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman'; color: black;\"\u003eThe Edelbrock name has been a staple of the automotive performance industry since the 1940’s. Their product line includes virtually everything under the hood, from individual components to complete engines. This makes Edelbrock one of the most recognized as well as trusted brands in the racing and performance world!\u003c\/span\u003e\u003c\/p\u003e"}