{"product_id":"comp-cams-cb-nx298hr-13-camshaft-for-chevrolet-396-454-big-block-engines-with-oiling-groove","title":"COMP Cams CB Nx298HR-13 Camshaft for Chevrolet 396-454 Big Block Engines 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. WARNING: Camshaft Optimized for use with a Melanized or Nitrided distributor Gear. Not compatible with cast or Steel Gears without similar surface treatments. Failure to utilize the proper distributor Gear will void all warranties and\/or return policies.\n200+ hp nitrous system, 671 or larger supercharger, 9.5:1+ compression, 2800+ stall.\nChevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts\n\u003cp\u003eThe COMP Cams CB Nx298HR-13 camshaft is specifically designed for Chevrolet GEN IV 396-454 big block engines originally equipped with flat tappet camshafts. It features an oiling groove in the rear journal, ensuring proper lubrication for models such as the 1965-66 396 c.i.d. variants. This design detail is crucial for maintaining engine performance and longevity in high-performance applications. The camshaft is optimized for use with melanized or nitrided distributor gears, which provides enhanced durability and reduces wear. Using incompatible cast or steel gears without similar surface treatments can lead to premature failure and void warranty coverage. This camshaft is ideal for engines equipped with nitrous systems producing over 200 horsepower, superchargers of 671 cubic inches or larger, compression ratios above 9.5:1, and torque converters with stall speeds exceeding 2800 RPM. Its specifications are tailored to maximize power output and reliability in high-performance settings, making it a preferred choice for engine builders and enthusiasts seeking to upgrade their big block engines.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for Chevrolet 396-454 big block engines with oiling groove in the rear journal\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized for use with melanized or nitrided distributor gears\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for high-performance applications including nitrous systems, superchargers, and high stall converters\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEnsures proper lubrication and engine longevity with specific design features\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with engines originally equipped with flat tappet camshafts\u003c\/li\u003e\u003c\/ul\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":55150295089457,"sku":"4389929","price":629.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/2247\/1473\/files\/dee08d4adf1fc3783b0b44227aa69d1a_d5e4bf70-9530-43b8-8901-a38c287bac0e.jpg?v=1783573940","url":"https:\/\/shop.topspeedcincy.com\/products\/comp-cams-cb-nx298hr-13-camshaft-for-chevrolet-396-454-big-block-engines-with-oiling-groove","provider":"Top Speed Cincy Shop","version":"1.0","type":"link"}