Holley EFI 300-123BK - LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6

Holley EFI 300-123BK - LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6

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

LS1/LS2/LS6 Cathedral Port EFI fits 1 x 105MM Throttle Body - Black Ceramic Coating

• 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.

• Throttle Body Flange Location, with 102mm 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)
• Total Height with 92/105mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.
• Port Size – 2.49” Height x 1.21” Wide
• Runner Length – 6.58”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.53 in²
• Plenum Top Gasket Type – 3/32” Round O-ring Cord
• Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
• Mounting Flange Gasket Type – Standard LS3 Molded O-Ring