Holley Hi-Ram Lower Manifold - GM LS7 300-229
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Features:
- Port Size Ð 2.49Ó Height x 1.21Ó Wide
- Mounting Flange Gasket Type Ð Standard LS3 Molded O-Ring
- Plenum Top Gasket Type Ð 3/32Ó Round O-ring Cord
- Runner Length Ð 6.29Ó, As-Cast Runner Cross-Sectional Area Ð Tapered 4.67 in_ to 2.84 in_
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!
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