Products to Compare (max of 3)
X
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
in
in
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Talk to the Experts. Call 800.979.0122
Shop By
Support
Account
Street Race Truck More... The Toolbox
Add to Cart
$461.99
Holley 300-121 LS EFI 2x4 Mid Rise Dual Plane Intake Manifold
Holley 300-121 LS EFI 2x4 Mid Rise Dual Plane Intake Manifold

Holley 300-121 LS EFI 2x4 Mid Rise Dual Plane Intake Manifold

Two Carburetor Quantity, 4-Barrel Square Bore Carburetor Flange Type

0 Reviews | 0 Answered Questions
Factory Shipped
Ships FREE
Select your vehicle to verify fitment.
Select Vehicle
Holley 300-121 LS EFI 2x4 Mid Rise Dual Plane Intake Manifold
Holley 300-121 LS EFI 2x4 Mid Rise Dual Plane Intake Manifold
Zoomed In Image
We estimate this item will ship on or before June 20th.
Part # 425300121
$461.99
each
Quantity:
Add to Cart
Call to Order
Add to Buildlist
Compare

Details
Reviews
Q&A
Videos & Articles

Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Holley to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Carburetor Quantity:
Two
Carburetor Flange Type:
4-Barrel Square Bore
Bolt Hole Pattern:
5.160" x 5.625"
GTIN Code:
090127671078

Info

Holley EFI 2x4 Mid Rise Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines

  • The Holley GM LS1/LS2/LS6 2x4V dual-plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am and at Lemans in the 1960™s. The technology of the LS pushrod engine is now mated with the im
  • The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power. The LS engine architecture does not utilize an intake mounted water neck or distributor so it™s perfect for two Holley carburetors and this inta
  • Carbureted and EFI versions available
  • Power band from 1500-7000 rpm
  • Appropriate for any street/performance, muscle car, or street rod enthusiast
  • Cast aluminum construction
  • Intended for use on all GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
  • Carb Flange Center-To-Center: 8-5/8

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

More Like This

Reviews

Q & A

Videos & Articles

You May Also Like

Suggestions
Error
Note
Ok