Features:

• Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
• Plenum Top Gasket Type – 3/32” Round O-ring Cord
• Port Size – 2.49” Height x 1.21” Wide
• Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
• Throttle Body Flange Location, with 92/102mm 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)
• Manifold has provisions for (1) 3/8 NPT and (2) 1/8 NPT fittings
• Runner Length – 6.50”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.77 in²
• Total Height with 92/105mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

• Gasket Kit, Hi-Ram Plenum O-Ring Cord

  Gasket Kit, Hi-Ram Plenum O-Ring Cord

  Part# 508-21

  $41.08

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• Intake Manifold Gasket Set, O-Ring LS3/LS7

  Intake Manifold Gasket Set, O-Ring LS3/LS7

  Part# 508-22

  $44.96

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• Holley Hi-Ram Manifold Top - 1 x 105mm Throttle Valve - GM LS

  1 x 105mm GM LS Throttle Valve Top Only- Bolt up through design (Threaded mounting holes in lid)

  Part# 300-232

  Qty: 

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The following vehicles are considered Racing Use Only Vehicles:

• Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle