SKU: 18089029955

Holley Single Plane EFI Intake - GM LS7 - 300-269

Sale price$179.52 Regular price$199.47
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Holley Single Plane EFI Intake - GM LS7 - 300-269Overview: Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads. Designed with a 4150 Square bore flange. Optimized runner layout and constant cross sectional area broad torque curve, best vehicle performance from 2500 7000 RPM Minimum carb flange height fit in vehicles with minimum hood modifications. Cast aluminum construction great manifold for centrifugal blower, turbocharged or NOS power adder

Overview:

Single Plane EFI LS Intake Manifold. Fits all GM LS Gen III engines equipped with LS7 cylinder heads. Designed with a 4150 Square bore flange. Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM Minimum carb flange height - fit in vehicles with minimum hood modifications. Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications The manifold kit includes the fuel rails, mounting hardware, and o-ring cylinder head mounting flange gaskets.

Features:

  • 2500-7000 RPM power band
  • 4150 Square bore flange
  • Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM
  • Minimum carb flange height - fit in vehicles with minimum hood modifications
  • Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS mild power adder applications
  • Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality
  • Weight - 11.5 lbs.
  • Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange and bellhousing flange
  • Port size - 2.33" height x 1.27" wide
  • Includes FKM o-ring intake to cylinder head gaskets

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Color Silver
Construction Cast
Emission Code 3
Engine GM LS7
Finish Satin
Flange Style 4150 Square Bore
Front Height 5.417 inch
Fuel System Type EFI
Manifold Type Single Plane
Product Type Manifold
Rear Height 5.417 inch
RPM Power Band 2500-7000
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18089029955

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Kelly Lhotka
Waukegan, US
★★★★★ 5
Buying another package
Size: Large, Color: Multicoloured D (5-pack)
Oh my gosh, I love these!!! They are very comfortable and not overly tight. The material is so thin and breathable, very comfortable. Love the colors. Am buying another package! I'm in perimenopause and these definitely keep me cooler than my tradition cotton underwear.
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Reviewed in the United States on April 25, 2026
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Ruth
Grantham, US
★★★★★ 5
Good quslity
Size: Large, Color: White
Good quality. Very happy with purchase
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Reviewed in the United States on January 21, 2026
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Anqi
Birmingham, US
★★★★★ 5
Bang for buck
For the money theyre just fantastic
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Reviewed in the United States on November 28, 2025
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Just a mom
Lake Worth, US
★★★★★ 4
Comfortable but Runs Small
I got the wirarpa Men’s Cotton T-Shirt 2-pack in XX-Large (Black/Gray) and while the shirts are really soft and breathable, they do run small. The XX-Large feels a bit tighter than expected, especially after washing. The cotton material is great and comfortable, but I would recommend sizing up if you’re looking for a more relaxed fit. The classic crew neck design is versatile, and the shirts are well-made. They hold up well in the wash and maintain their softness. Even though the sizing is a bit off, the quality and price are still excellent for the value. If you’re okay with a slightly snug fit or decide to size up, this is still a great purchase!
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Reviewed in the United States on March 28, 2025
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kassem
Phoenix, US
★★★★★ 5
Great product
Size: Large, Color: Black/White
Perfect shirt, great quality. Comfortable and soft. If you have man tits it hides them well
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Reviewed in the United States on August 22, 2025

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