{"product_id":"lsx454-long-block-kit","title":"LSX454 Long Block Kit","description":"\u003cp\u003e\u003cstrong\u003eAN LSX WITH BIG-BLOCK POWER!\u003c\/strong\u003e\u003cbr\u003eWith the LSX Bowtie block, we’ve built a 21st century 454 with the latest technology. It’s lighter and more compact than an original Big-Block 454 – while delivering Big-Block output of 627 hp and 586 lb.-ft. – but requires no more space under the hood than a production LS engine.\u003c\/p\u003e\n\u003cp\u003eThe LSX454 is filled with an all-forged, super-tough rotating assembly and features a pair of our deep-breathing LSX six-bolt cylinder heads. It also comes dressed with great-looking, orange powder-coated valve covers with engraved “LSX454” logos.\u003c\/p\u003e\n\u003cp\u003eChevrolet Performance delivers the engine without an intake manifold and other accessories. Use LSX-LS7 singleplane carbureted intake manifold P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19244033.html\"\u003e19244033\u003c\/a\u003e. The LSX454 valve covers do not include provisions for mounting ignition coil brackets. Aftermarket or custom relocation brackets must be obtained. It also includes an 8-bolt crankshaft flange that may require an adapter for use with some transmissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECH SPECS\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e19332316\u003cbr\u003e\u003cstrong\u003eEngine Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLSX-Series Gen IV Small-Block V-8\u003cbr\u003e\u003cstrong\u003eDisplacement (cu in):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e454 cu in (7.4L)\u003cbr\u003e\u003cstrong\u003eBore x Stroke (in):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.185 x 4.125 (106.3 x 104.8 mm)\u003cbr\u003e\u003cstrong\u003eBlock (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19417353.html\"\u003e19417353\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLSX cast-iron with 6-bolt, cross-bolted main caps\u003cbr\u003e\u003cstrong\u003eCrankshaft (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19244018.html\"\u003e19244018\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4340 forged steel with 8-bolt flange\u003cbr\u003e\u003cstrong\u003eConnecting Rods (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19166964.html\"\u003e19166964\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4340 forged steel\u003cbr\u003e\u003cstrong\u003ePistons (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19166958.html\"\u003e19166958\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eForged aluminum\u003cbr\u003e\u003cstrong\u003eCamshaft Type (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19166972.html\"\u003e19166972\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHydraulic roller\u003cbr\u003e\u003cstrong\u003eValve Lift (in):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.648 intake \/ 0.648 exhaust\u003cbr\u003e\u003cstrong\u003eCamshaft Duration (@0.050 in):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e236° intake \/ 246° exhaust\u003cbr\u003e\u003cstrong\u003eCylinder Heads (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19419193.html\"\u003e19419193\u003c\/a\u003e):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAluminum LSX-LS7 port; with “as cast” 70cc chambers\u003cbr\u003e\u003cstrong\u003eValve Size (in):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.200 titanium intake\/1.610 hollow, sodium-filled exhaust\u003cbr\u003e\u003cstrong\u003eCompression ratio:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e11.0:1\u003cbr\u003e\u003cstrong\u003eRocker Arms (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/12579615.html\"\u003e12579615\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eint):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInvestment-cast, roll trunnion\u003cbr\u003e\u003cstrong\u003eRocker Arms (P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/12579617.html\"\u003e12579617\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eexh):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInvestment-cast, roll trunnion\u003cbr\u003e\u003cstrong\u003eRocker Arm Ratio:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1.8:1\u003cbr\u003e\u003cstrong\u003eRecommended Fuel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePremium pump\u003cbr\u003e\u003cstrong\u003eMaximum Recommended rpm:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e6,500\u003cbr\u003e\u003cstrong\u003eReluctor Wheel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e58x\u003cbr\u003e\u003cstrong\u003eBalanced:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInternal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003cbr\u003e• Assembly does not include any electronics\u003cbr\u003e• Requires LS7 pattern intake manifold\u003cbr\u003e• Assembly shipped without an intake manifold\u003cbr\u003e• Requires the purchase and installation of an oil pan (dust shield installed for shipment)\u003cbr\u003e• Intended for pre-1976 street vehicles or any off-road vehicle\u003cbr\u003e• Not intended for marine applications\u003cbr\u003e• Requires LSX Ignition Controller P\/N\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.gmperformancemotor.com\/parts\/19355418.html\"\u003e19355418\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhen using a carburetor\u003cbr\u003e• LSX 8-bolt crank flange\u003cbr\u003e• Requires premium fuel\u003c\/p\u003e","brand":"Chevrolet Performance","offers":[{"title":"Default Title","offer_id":50258589122880,"sku":"19417357","price":14745.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/8585\/9904\/files\/454lsx.jpg?v=1739066003","url":"https:\/\/spikesspeed.us\/products\/lsx454-long-block-kit","provider":"Spikes Speed Shop Inc","version":"1.0","type":"link"}