{"product_id":"high-performance-thumpr-camshaft-and-cylinder-head","title":"High Performance Thumpr Camshaft And Cylinder Head Kit Loaded Badass Chevy Big Block 454 427 Swap Drop In Lifters Springs Swirl Valves For Rollin Heavy Street Trucks","description":"\u003cdiv\u003eComplete Thumpr Cam \u0026amp; Valve Train Set For Chevy B\u003cbr\u003e\n✔️ PACKAGED CONTAINS HYDRAULIC LIFTERS STEEL VALVE GUIDE PLATES \u003cp\u003eThis complete engine build package serves as a direct aftermarket replacement for worn factory components in classic muscle cars and heavy duty street trucks.\u003c\/p\u003e ✅ HIGH PERFORMANCE THUMPR HYDRAULIC PROFILE AT 227 AND 241 DURATIONS\u003cbr\u003e\n✅ STAINLESS SWIRL POLISHED INTAKE EXHAUST VALVES WITH PRECISION STEM DIAMETERS\u003cbr\u003e\n✅ HIGH PRESSURE COIL SPRINGS RATED 380 FORCE OPEN AND 140 FORCE CLOSED\u003cbr\u003e\n✅ 10 DEGREE CHROMOLY RETAINERS HARDENED LOCKS SHROUDED ROCKER STUDS\u003cbr\u003e \u003cp\u003e💡 What makes a compact lobe separation angle camshaft kit handy for daily driving enthusiasts?\u003cbr\u003eA tighter angle creates an aggressive idle rumble without sacrificing street manners, making it perfect for cruiser builds and weekend track days.\u003cbr\u003e- Early intake port opening boosts low rpm torque so your engine fires up quickly from cold starts.\u003cbr\u003e- Extended exhaust duration clears burnt gases faster to keep cylinder temperatures down during heavy traffic crawling.\u003cbr\u003e- Matching upgraded retainer hardware stops valve float when you push past cruise speed limits.\u003cbr\u003e- Proper follower lubrication during break in extends overall valvetrain lifespan across decades of ownership.\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49248857063659,"sku":"VXB0FJX8PX9D","price":1190.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/718t9e3zfNL_c73d85d9-d4b3-4808-b28e-4fd9afbbf8a6.jpg?v=1787060242","url":"https:\/\/vxb.com\/products\/high-performance-thumpr-camshaft-and-cylinder-head","provider":"VXB Bearings","version":"1.0","type":"link"}