LS Hi-Ram EFI Manifold GM LS1/LS2/LS6 - 92MM Throttle Body

Holley LS Hi-Ram EFI Manifold GM LS1/LS2/LS6

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??

Details:

• Color: Silver
• Construction: Cast
• Engine: GM LS1/LS2/LS6
• Finish: Silver
• Flange Style: EFI
• Front Height: 12.32 inch
• Fuel System Type: EFI
• Manifold Type: Hi-Ram
• Rear Height: 11.00 inch
• Recommended Use: Forced Induction
• RPM Power Band: 3500-8000 RPM
• Warranty: Limited 90 Day

Links
300-122
Instruction Sheet