{"product_id":"comp-cams-camshaft-cb-xm-278h-12-for-chevrolet-big-block-396-454-with-oiling-groove","title":"COMP Cams Camshaft CB XM 278H-12 for Chevrolet Big Block 396-454 with Oiling Groove","description":"BBC - 1965-66 396 c.i.d. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a Camshaft with the oiling groove, please call us at 1-800-999-0853 or contact us, and we will assist you with placing an order.\nJet w\/ A impeller, needs improved intake, likes headers.\nChevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts\n\u003cp\u003eThe COMP Cams CB XM 278H-12 camshaft is designed specifically for Chevrolet GEN IV big block engines ranging from 396 to 454 cubic inches, originally equipped with flat tappet camshafts. This high-performance camshaft features an oiling groove in the rear journal, which is essential for certain 1965-66 models. If your engine demands a camshaft with this feature, please contact our support team at 1-800-999-0853 or reach out through our contact options to ensure proper fitment. Constructed for enthusiasts seeking improved engine performance, this camshaft offers enhanced intake capabilities and is optimized for headers and jet with a impeller, providing better airflow and power output.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for Chevrolet GEN IV 396-454 big block engines with flat tappet camshaft compatibility\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes an oiling groove in the rear journal for specific 1965-66 models\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized for improved intake and header performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered for high-performance applications with durable construction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRequires carburetor acknowledgment during installation\u003c\/li\u003e\u003c\/ul\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":55151710273841,"sku":"4389866","price":334.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/2247\/1473\/files\/86a899ae5b817f7f660d734299630f5f_4910ed2f-7213-4bc0-9336-e123652b9486.jpg?v=1783574843","url":"https:\/\/shop.topspeedcincy.com\/products\/comp-cams-camshaft-cb-xm-278h-12-for-chevrolet-big-block-396-454-with-oiling-groove","provider":"Top Speed Cincy Shop","version":"1.0","type":"link"}