Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines, w/Black Ceramic Coating
Overview Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads.
NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230 (see below in the service parts section).
Features:
Base Plenum Top Mounting Flange Height ???? 8.42??? to the lifter valley cover flange on engine block.
Total Height with 92/102mm EFI Plenum Top ???? 12.32??? to the lifter valley cover flange on engine block.
Port Size ???? 2.49??? Height x 1.21??? Wide
Mounting Flange Gasket Type ???? Standard LS3 Molded O-Ring
Plenum Top Gasket Type ???? 3/32??? Round O-ring Cord
Throttle Body Flange Location, with 92mm EFI Plenum Top : Height ???? 8.42??? (from engine block lifter valley cover flange), Longitudinal Location ???? 3.84??? (forward from engine block front flange), Angle ???? 25 deg. (down from vertical)
Runner Length ???? 6.58???, As-Cast Runner Cross-Sectional Area ???? Tapered 4.25 in?? to 2.53 in??
