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 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)
• Runner Length – 6.50”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.77 in²
• Intended for use on naturally aspirated or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM

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!

• LS Throttle Body Gasket

  92/102mm GM LS Throttle Body Gasket

  Part# 508-20

  $11.92

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

  Gasket Kit, Hi-Ram Plenum O-Ring Cord

  Part# 508-21

  $34.85

  Qty: 

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

  Intake Manifold Gasket Set, O-Ring LS3/LS7

  Part# 508-22

  $39.83

  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