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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - BlackHolley Single Plane EFI Intake GM LS1 LS2 LS6 Black Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. Overview Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. Includes mounting bolts washers. Also includes O ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not
Holley Single Plane EFI Intake-GM LS1/LS2/LS6 - BlackSingle Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.
Overview
Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads.
Includes mounting bolts washers. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219. NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230 (see below in the service parts section).
Features:
- Black ceramic coating provides an aggressive look to your engine compartment
- 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 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
- Port size - 2.50" height x 1.15" wide
- Includes Viton???? O-ring intake to cylinder head gaskets - Viton???? is a registered trademark of DuPont Performance Elastomers
- Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219
Details:
- Color: Black
- Construction: Cast
- Engine: GM LS1/LS2/LS6
- Finish: Black
- Front Height: 5.417 inch
- Fuel System Type: EFI
- Manifold Type: Single Plane
- Rear Height: 5.417 inch
- Recommended Use: Forced Induction
- RPM Power Band: 2500-7000 RPM
- Warranty: Limited 90 Day
Links
Instruction Sheet
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Good and good
Size: Medium, Color: Red, Size: Medium, Color: Red
Good
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Reviewed in the United States on May 15, 2026
★★★★★ 4
Dress look, without paying, big dollars!
Size: XX-Large, Color: Khaki
Well worth the $. With a sweater, perfectly fine for winter wear.
Without a sweater?
Perfect for fall Nice look
You’ll need to have it ironed, in that it comes in a very small plastic.
Minor ironing!
A good buy!!
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Very nice jacket/coat for the price
Size: X-Large, Color: Black
This was purchased to wear with a tuxedo for northern winter wear. The size XL is what he normally wears. It fit well over a tux shirt, vest and jacket. The length is perfect for a man; it covers the tux but does not get tangled in knees. It is lined in a satiny fabric. The wool type material is a bit rough, not soft, but it does the job. The black is rich looking and provides warmth for really cold weather. This jacket can easily be worn for casual wear. Should only be dry cleaned, but doubt it will ever really need to be cleaned.
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Reviewed in the United States on November 25, 2025
★★★★★ 5
Cool
Size: XX-Large, Color: Black
Warm, long, goes almost to ny ankles and i am tall
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Reviewed in the United States on March 17, 2026
★★★★★ 1
Actually violet color and looks nothing like picture
Size: Large, Color: Red
Bait-n-switch. What arrives looks nothing like the photo. Its purple/pink and a misshapen ladies coat. Really low quality. And why they make them 90% polyester is crazy - just waiting to explode in flames!
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Reviewed in the United States on December 15, 2025