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Description
LS Hi-Ram EFI Manifold GM LS1/LS2/LS6 - 92MM Throttle BodyHolley LS Hi Ram EFI Manifold GM LS1 LS2 LS6 Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1 LS2 LS6 engines, w Black Ceramic Coating Overview Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1 LS2 LS6 engines All GM LS Gen 3 engines equipped with LS1 LS2 style cathedral port cylinder heads. 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.
Holley LS Hi-Ram EFI Manifold GM LS1/LS2/LS6Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines, w/Black Ceramic Coating
Overview
Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads. 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:
- Base Plenum Top Mounting Flange Height ???? 8.42??? to the lifter valley cover flange on engine block.
- Total Height with 92/102mm EFI Plenum Top ???? 12.32??? to the lifter valley cover flange on engine block.
- Port Size ???? 2.49??? Height x 1.21??? Wide
- Mounting Flange Gasket Type ???? Standard LS3 Molded O-Ring
- Plenum Top Gasket Type ???? 3/32??? Round O-ring Cord
- Throttle Body Flange Location, with 92mm EFI Plenum Top : Height ???? 8.42??? (from engine block lifter valley cover flange), Longitudinal Location ???? 3.84??? (forward from engine block front flange), Angle ???? 25 deg. (down from vertical)
- Runner Length ???? 6.58???, As-Cast Runner Cross-Sectional Area ???? Tapered 4.25 in?? to 2.53 in??
Details:
- Color: Silver
- Construction: Cast
- Engine: GM LS1/LS2/LS6
- Finish: Silver
- Flange Style: EFI
- Front Height: 12.32 inch
- Fuel System Type: EFI
- Manifold Type: Hi-Ram
- Rear Height: 11.00 inch
- Recommended Use: Forced Induction
- RPM Power Band: 3500-8000 RPM
- Warranty: Limited 90 Day
Links
300-122
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
4.7 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Good ipad cover
Fits perfect, good protector, looks nice!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 4
Fits well and cool hot pink color
Color: Fuchsia
It is very slim and cool. Easy to install and good grip.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Great quality and beautiful color
Color: Wisteria
I absolutely love this iPad case! The star purple color is beautiful and looks even better in person. It fits perfectly on my iPad and feels sturdy while still being slim and lightweight. The stand function is really convenient for watching videos or typing, and I love that it has a pencil holder built in so I don’t misplace it. The cover automatically wakes and sleeps the iPad, which is a nice touch. Overall, it looks great, feels durable, and protects my device without being bulky
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Reviewed in the United States on September 1, 2025
★★★★★ 5
Durable and cute
Color: Rose Gold
My daughter loves it. Cute durable does what it should.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Useful
Color: Yellow
Nice and useful
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Reviewed in the United States on June 3, 2026