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Holley Performance Parts
Holley 300-121
Holley 300-121 GM LS GEN III LS1/LS2/LS6 2 X 4 500x373
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Holley 300-121
2x4 Dual Plane Mid-Rise EFI LS Intake Manifold – EFI

• GM LS Gen III engines with LS1/LS2 style cathedral port cylinder heads
• Cast aluminum construction
• Power band from 1500-7000 rpm
• Great mid-range torque without compromising top end power
• Appropriate for any street/performance, muscle car, or street rod
Retail Price: $485.95
Our Price: $436.95
UPC 090127671078
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(US only. Excluding any oversize charges.)
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1Estimated Shipping Dates are based on available inventory and the nearest warehouse.
Performance Parts is a Holley authorized performance retailer
Product Info Related Items
2x4 Dual Plane Mid-Rise EFI LS Intake Manifold — EFI

• GM LS Gen III engines with LS1/LS2 style cathedral port cylinder heads
• Cast aluminum construction
• Power band from 1500-7000 rpm
• Great mid-range torque without compromising top end power
• Appropriate for any street/performance, muscle car, or street rod

Holley 300-121 dual-plane equal-distribution layout produces great mid-range torque without compromising top end power. Holley 300-121 takes full advantage of the opportunity that LS engine architecture does not utilize an intake mounted water neck or distributor so it's perfect for two Holley carburetors and this intake manifold design.


Not Auto Parts... Performance Parts!
Shipping Weight/Dimensions:
Weight:25.00 lbs
Height:10.00 in.
Length:20.50 in.
Width:14.50 in.
Shipping from warehouses in the U.S. and Canada!
Performance Parts has over 20 warehouses in the U.S. and Canada so you can get your parts duty free! Call for availability.
None listed.
- Last Updated: 2016-06-07 10:24:00 -
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