{"product_id":"hol-300-290bk","title":"INTAKE MANIFOLD,LS3\/L92,SINGLE-PLANE,4150,SPLIT,FR,BLACK","description":"\u003cp\u003e\u003cb\u003e\u003cu\u003eBRAND NEW HOLLEY SINGLE PLANE EFI SPLIT-DESIGN RACE INTAKE MANIFOLD, BLACK SATIN FINISH, 4150 SQUARE BORE FLANGE, COMPATIBLE WITH ALL GM LS GEN III OR IV ENGINES WITH LS3\/L92 CYLINDER HEADS\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e  \u003cp\u003eTHE NEW HOLLEY SINGLE-PLANE RACE INTAKE MANIFOLD WERE DESIGNED WITH PERFORMANCE IN MIND. THEY FEATURE A RACE BRED, TWO PIECE SPLIT FEATURE THAT WAS PREVIOUSLY ONLY FOUND ON THE MOST EXPENSIVE RACE INTAKES. THE MANIFOLD WILL FIT GM LS GEN III ENGINES WITH LS3\/L92 HEADS AND ARE INTENDED FOR 4150 STYLE SQUARE BORE FLANGED CARBURETORS OR THROTTLE BODY EFI.\u003c\/p\u003e  \u003cp\u003eTHE LS RACE SINGLE-PLANE INTAKE MANIFOLD WAS DESIGNED FOR HI-PERFORMANCE\/RACING ENGINE APPLICATIONS, 5.3 TO 6.2+ LITER DISPLACEMENT, AND MAXIMUM ENGINE SPEEDS OF 6000-7000 RPM, DEPENDING ON THE ENGINE COMBINATION. THIS SINGLE-PLANE DESIGN PROVIDES OPTIMAL PERFORMANCE ACROSS THE RPM SPECTRUM WHILE PROVIDING MAXIMUM PERFORMANCE UP TO 7000 RPM.\u003c\/p\u003e  \u003cp\u003eTHE HOLLEY LS RACE MANIFOLD INCORPORATES A SPLIT FEATURE, WHICH ALLOWS DISASSEMBLY OF THE INTAKE FOR DIRECT ACCESS TO INTERNAL PLENUM AND PORT SURFACES, MAKING CUSTOM PORTING AND MATCHING A SNAP. WITH SHOULDER BOLT LOCATORS AND O-RING SEAL, REASSEMBLY IS SIMPLE AND PRECISE.\u003c\/p\u003e  \u003cp\u003e\u003cb\u003e\u003cu\u003eNOTE:\u003c\/u\u003e 2 DIFFERENT LENGTH FUEL RAIL BRACKET SETS ARE INCLUDED: LONG BRACKETS FOR MOUNTING AT HEIGHT FOR BOSCH STYLE EV1 TYPE FUEL INJECTORS. SHORT BRACKETS FOR MOUNTING AT HEIGHT FOR GM OE LS7 FUEL INJECTORS. USING OE GM LS7 INJECTOR, THE O-RING ON THE OUTLET (INTAKE MANIFOLD) END OF THE INJECTOR MUST BE CHANGED TO THE O-RING SUPPLIED IN THE SHORT BRACKET PACK.\u003c\/b\u003e\u003c\/p\u003e  \u003cp\u003e\u003cb\u003e\u003cu\u003eTECHNICAL DATA:\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eA-B HEIGHT - 7.20\" (0 DEGREES CARB FLANGE ANGLE)\u003c\/li\u003e \u003cli\u003ePORT SIZE- 2.59\" HEIGHT X 1.28\" WIDE\u003c\/li\u003e \u003cli\u003eTHROTTLE BODY FLANGE - STANDARD 4150 FOR UP TO 1-3\/4\" DIAMETER THROTTLE BORES\u003c\/li\u003e \u003cli\u003eAS-CAST RUNNER CROSS-SECTIONAL AREA - 4.5 IN SQUARED AT THE RUNNER ENTRY TAPERED TO 3.2 IN SQUARED AT THE FLANGE EXIT\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cb\u003e\u003cu\u003eFEATURES:\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMAXIMUM PERFORMANCE RACE DESIGN WITH HOOD CLEARANCE CONSIDERATION\u003c\/li\u003e \u003cli\u003eLIGHTER THAN OTHER SPLIT RACE INTAKES\u003c\/li\u003e \u003cli\u003eSPLIT FEATURE MAKING PORTING EFFORTS EASY\u003c\/li\u003e \u003cli\u003e33 TO 50% THE PRICE OF OTHER SPLIT RACE INTAKES\u003c\/li\u003e \u003cli\u003eCAPTURED O-RING SEALS AT HEAD PORTS AND SPLIT\u003c\/li\u003e \u003cli\u003eVACUUM PORT OPTIONS INCLUDE (2) 1\/8, (1) 1\/4 \u0026amp; (1) 3\/8, NPT PORTS AT THE CARB FLANGE\u003c\/li\u003e \u003cli\u003eBILLET FUEL RAILS AND RAIL MOUNTING HARDWARE INCLUDED\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cb\u003e\u003cu\u003eSPECS:\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eFINISH\/CONSTRUCTION:\u003c\/b\u003e BLACK CAST\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eBARRELS:\u003c\/b\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eBRAND:\u003c\/b\u003e HOLLEY\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eENGINE:\u003c\/b\u003e GM LS3\/L92\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFLANGE STYLE:\u003c\/b\u003e 4150 SQUARE BORE\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFRONT HEIGHT:\u003c\/b\u003e 7.32\"\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFUEL SYSTEM TYPE:\u003c\/b\u003e EFI\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMANIFOLD TYPE:\u003c\/b\u003e SPLIT SINGLE PLANE\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePRODUCT TYPE:\u003c\/b\u003e INTAKE MANIFOLD\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eREAR HEIGHT:\u003c\/b\u003e 7.32\"\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRECOMMENDED USE:\u003c\/b\u003e FORCED INDUCTION\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRPM POWER BAND:\u003c\/b\u003e 3500-8000\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eYOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLETS FOR THIS INTAKE MANIFOLD \u003ca target=\"_blank\" href=\"https:\/\/southwestspeed.com\/cdn\/shop\/files\/HOL_300-290Instructions.pdf\"\u003e\u003cfont color=\"red\"\u003eHERE\u003c\/font\u003e\u003c\/a\u003e.\u003c\/p\u003e","brand":"HOL 300-290BK","offers":[{"title":"Default Title","offer_id":47881935847705,"sku":"HOL 300-290BK","price":819.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/0477\/6985\/files\/HOL_300-290BK.jpg?v=1751938687","url":"https:\/\/southwestspeed.com\/products\/hol-300-290bk","provider":"Southwest Speed","version":"1.0","type":"link"}