{"product_id":"hi-ram-lower-manifold-gm-ls1-ls2-ls6-cathedral-port-efi-base-only-black","title":"Hi-Ram Lower Manifold - GM LS1\/LS2\/LS6 Cathedral Port EFI Base Only-Black","description":"Holley Hi-Ram Lower Manifold - GM LS1\/LS2\/LS6\u003cbr\u003e\u003cbr\u003eLS1\/LS2\/LS6 Cathedral Port EFI Base Only\u003cbr\u003e\u003cbr\u003eOverview\u003cbr\u003eThe Holley GM LS1\/LS2\/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1\/LS2\/LS6 style cylinder heads has outstanding potential for N\/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more!\n\n The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems.\n\n Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations\n\n EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.\n\n Cast aluminum construction.\n\n Intended for use on N\/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.\u003cbr\u003e\u003cbr\u003eThese parts should be used for the following applications: Racing\/Performance\/Street Rodder where hood restrictions are NOT a consideration.\u003cbr\u003e\u003cbr\u003eFeatures:\u003cul\u003e\n\u003cli\u003ePort Size ???? 2.49??? Height x 1.21??? Wide\u003c\/li\u003e\n\u003cli\u003eMounting Flange Gasket Type ???? Standard LS3 Molded O-Ring\u003c\/li\u003e\n\u003cli\u003ePlenum Top Gasket Type ???? 3\/32??? Round O-ring Cord\u003c\/li\u003e\n\u003cli\u003eRunner Length ???? 6.58???, As-Cast Runner Cross-Sectional Area ???? Tapered 4.25 in?? to 2.53 in??\u003c\/li\u003e\n\u003cli\u003eBlack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003eDetails:\u003cul\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eConstruction: Cast\u003c\/li\u003e\n\u003cli\u003eEngine: GM LS1\/LS2\/LS6\u003c\/li\u003e\n\u003cli\u003eFinish: Black\u003c\/li\u003e\n\u003cli\u003eFuel System Type: EFI\u003c\/li\u003e\n\u003cli\u003eRPM Power Band: 3500-8000 RPM\u003c\/li\u003e\n\u003cli\u003eType of Component: Lower Manifold\u003c\/li\u003e\n\u003cli\u003eWarranty: Limited 90 Day\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003eLinks\u003cbr\u003e\u003ca href=\"https:\/\/www.holley.com\/\/documents.holley.com\/http:\/\/www.youtube.com\/watch?v=VfOG0Up3j6U%20feature=endscreen\u0026amp;NR=1\/\"\u003e300-227\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.holley.com\/\/documents.holley.com\/199r10572rev6.pdf\/\"\u003eInstruction Sheet\u003c\/a\u003e","brand":"The Tuner Store","offers":[{"title":"Default Title","offer_id":46142588354614,"sku":"300-227BK","price":898.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/6393\/8614\/files\/300-227bk_0118191.jpg?v=1778762533","url":"https:\/\/www.gmserviceguy.shop\/products\/hi-ram-lower-manifold-gm-ls1-ls2-ls6-cathedral-port-efi-base-only-black","provider":"Gm Service Guy","version":"1.0","type":"link"}