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- USA
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
Holley EFI Vacuum Manifold 534-52The Holley EFI Vacuum Manifold is an excellent vacuum or boost reference source. Features: Compatible with all transducers that utilize 1 8 NPT male threads and 7 8? or smaller body hex diameter 12 independent 1 8 NPT ports 2 6 ORB Ports Improve engine bay organization by mounting transducers and or vacuum lines all in one easy to reach location Ideal for engines that require multiple vacuum boost reference sources 4 mounting holes designed for the
The Holley EFI Vacuum Manifold is an excellent vacuum or boost reference source.
Features:
- Compatible with all transducers that utilize 1/8 NPT male threads and 7/8? or smaller body/hex diameter
- 12 independent 1/8 NPT ports
- 2 -6 ORB Ports
- Improve engine bay organization by mounting transducers and/or vacuum lines all in one easy to reach location
- Ideal for engines that require multiple vacuum/boost reference sources
- 4 mounting holes designed for the use of 5/16? socket head cap hardware for secure and robust mounting
- Crafted from 6061 Aluminum
- Anodized black for durability and laser etched with the Holley EFI logo
Specs:
| Brand | Holley EFI |
|---|---|
| Emission Code | 5 |
| Finish | Black |
| Inlet | 1/8 NPT |
| Inlet / Outlet Size | 9/16-18 Female O-Ring (AN 6) |
| Material | 6061 Aluminum |
| Product Type | Sensor Block |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
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 29 reviews
Sort
Product Reviews
★★★★★ 5
Fit as expected
Size: 16 Long, Color: Medium Blue
Fit great, sized perfectly and super comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Blk mule
Size: 8.5, Color: Black
They really nice. Good looking and feel comfortable. But I believe they run small. I’m an exchange them for a size up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
★★★★★ 5
LOVE THEM ❤️
Size: 9, Color: Hazelnut
LOVE THESE ❤️ COMFORTABLE.. WELL MADE.. BEAUTIFUL 😍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Genuine leather upper and well made
Size: 10, Color: Sunlight
These shoes are well made and I love the way they look. They look great with jeans or dresses. I usually wear a 9 1/2 or 10 depending on the brand. These are a size 10 and fit. Hopefully after a breaking in period the opening at the toes will loosen up. Also, when walking they make a slap slap sound. Again, hoping after they break in that won't be the case. I got a great deal and poof a couple of days later there was a slightly better deal.
I wasn't sure I'd like the color but it's actually really nice. The upper is genuine leather and they are well made.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
Beautiful shoe
Size: 7, Color: Smoke Grey
This shoe is fairly narrow, which works fine for my narrow feet. Comfortable. Light. Nice color will match with lots of colors. Fairly comfortable but the skinny part by the toe I see how this would give anyone with a medium side foot blisters. It’s fine on me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 23, 2025
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