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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
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Description
Hi-Ram Lower Manifold - GM LS1/LS2/LS6 Cathedral Port EFI Base OnlyHolley Hi Ram Lower Manifold GM LS1 LS2 LS6 Stud Kit, Hi Ram LS Intake Manifold Mounting Overview Stud Kit, LS Hi Ram Intake Manifold Mounting Features: 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 Runner Length ???? 6. 58???, As Cast Runner Cross Sectional Area ???? Tapered 4. 25 in?? to 2. 53 in?? Details: Color: Silver Construction:
Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6Stud Kit, Hi-Ram LS Intake Manifold Mounting
Overview
Stud Kit, LS Hi-Ram Intake Manifold Mounting
Features:
- 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
- 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
- Fuel System Type: EFI
- RPM Power Band: 3500-8000 RPM
- Type of Component: Lower Manifold
- Warranty: Limited 90 Day
Links
300-227
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
4.2 ★★★★★
Based on 10 reviews
Sort
Product Reviews
★★★★★ 5
Great for warm weather
Size: Large, Color: Dark Grey
Love these!! I was having a tough time (living in phoenix) and wearing a blazer. It is so hot here that you dont want to wear thick button up shirts with collars etc. T shirts are a bit informal. These are a great mix. Lightweight and breathable, but still a little more dressy than a t shirt. Look good with out the jacket as well. Great for church or nice night out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
★★★★★ 1
Fit
Size: XX-Large, Color: Black
These shirts are very soft and comfortable but the mock fits very lose and sloppy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 3
Amazon brand looks bad
Color: White, Light Gray, Black, Size: X-Large
II think the quality is poor the fabric is thin and the moc collar won't stand up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2025
★★★★★ 5
Satisfied
Color: Brown, White, Black, Size: Large
Nice fit and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
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