Fits for EFI LS hi-ram Rectangular Port Head Multi-port GM LS3/L76/L92/L99 Chevy 6.0L 6.2L 102mm Bore Product Features: EFI LS hi-ram intake manifolds are designed for your high performance race engine. Big cube and high-rev applications without height limitations are the intent for these manifolds. these hi-ram intake manifolds offers a runner length and as-cast tapered cross-section design that works for a wide range of engine configurations. The included fuel rails are machined for -8 AN O-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system. These hi-ram style intake manifolds are designed for high performance engine applications up to 427-440 cubic inch displacement and maximum engine speeds of 7500-8500 rpm, depending on the engine combination. The Hi-Ram intake manifolds are intended for maximum performance applications and will not accept stock components and hardware. The EFI versions of the LS hi-ram intake manifold and fuel rail are designed to accept EV-1 or pico fuel injectors. Remind:OE LS fuel injectors may not fit properly in the hi-ram EFI intake manifold fuel rail assembly.You need to purchase the bracket separately. Fits for Cadillac Models： Fits for Cadillac Escalade 2007-2008 Fits for Cadillac Escalade ESV 2007-2008 Fits for Cadillac Escalade EXT 2007-2008 Fits for Chevrolet Models： 2010-2015 Fit for Chevrolet Camaro 2008-2013 Fit for Chevrolet Corvette 2014-2017 Fit for Chevrolet SS 2008-2008 Fit for Chevrolet Tahoe Fits for GMC Models： 2007-2008 Fit for GMC Sierra 1500 2007-2008 Fit for GMC Yukon 2007-2008 Fit for GMC Yukon XL 1500 Fit for Hummer Models： 2008 Fit for H2 Fits for Pontiac Models： 2009-2009 Fit for Pontiac G8