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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Hooker Blackheart LT Turbo Exhaust Manifolds - 8540HKRHolley's new LT Turbo Exhaust Manifolds provide a simple and effective way to add a turbo to your LT powered car or truck. These turbo manifolds are made from High Silicon Moly ductile iron, which are much more durable and retain more heat than fabricated headers. This added heat retention aids in turbo efficiency. Their compact design allows for better fitment in multiple applications and better spark plug access than many fabricated headers do.
Holley's new LT Turbo Exhaust Manifolds provide a simple and effective way to add a turbo to your LT powered car or truck. These turbo manifolds are made from High-Silicon-Moly ductile iron, which are much more durable and retain more heat than fabricated headers. This added heat retention aids in turbo efficiency. Their compact design allows for better fitment in multiple applications and better spark plug access than many fabricated headers do. These manifolds work with most common LT swap parts (i.e. motor mounts, swap oil pan, and accessory drive systems) & provide the basic building blocks needed to complete a custom turbo system for your GM LT engine.
Features:
- Designed to integrate with the most common LT swap applications and components
- 3 inch V-Band outlet and 2.5 inch V-Band crossover connections provide a tight seal
- Includes a heat shield to protect heater hoses
- Hardware included – Stainless steel V-Band clamps, V-Band flanges and header bolts
- High-Silicon-Moly Ductile iron construction retains heat for better turbo efficiency and is more durable that headers
- Compact design allows for better fitment and spark plug access
Specs
| Brand | Hooker BlackHeart |
|---|---|
| Collector Diameter | 3.00 inch Outlet/2.50 Cross-over connection |
| Emission Code | 4 |
| Engine | GM LT |
| Finish | Natural |
| Flange Style | V-band |
| Header Style | Turbo manifold |
| Material | Cast Iron |
| Primary Tube Dia. | 1-3/4 inch |
| Product Type | Manifold |
| Part Number | 8540HKR |
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
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Product Reviews
★★★★★ 5
Bought 2, will buy more
Color: Pink Artichoke, Size: Large
Extremely comfortable and high quality fabric. Very similar to an Under Amour product for a smaller price tag. I’ve bought 2 so far!
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Great Lightweight Pullover
Color: Faded Denim Heather, Size: X-Large
I'm 5’8” and about 240 lbs, and I went with an XL for this light grey quarter-zip pullover. Fit is spot-on, not too tight, not overly baggy. The material is lightweight and breathable but still feels like it has some substance, making it perfect for layering or wearing on its own in mild weather.
The fabric has a nice stretch to it, which adds to the comfort and ease of movement, and it holds its shape well. The zipper is high quality, smooth to zip and feels durable.
Color is true to the description, a clean, versatile light grey that pairs easily with joggers or jeans.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Great shirt, good quality.
Color: Light Blue Melange, Size: Large
This brand is solid, really good quality material and a great look and price. Maelreg continues to impress me, I've now purchased 6-8 of their shirts/hoodies and 2 pair of joggers. I really like them all.
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Reviewed in the United States on February 20, 2026
★★★★★ 4
Great Shirt. In Africa with it as I type this.
Color: Lunar Rock Melange, Size: XX-Large
Great shirt. I would recommend for anyone into fishing cover up from the sun or just to be comfortable.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
I’m Team Maelreg!
Color: Dark Grey Heather, Size: 3X-Large
I’m a huge fan of Maelreg! I’ve purchased numerous polos, a hoodie, a pair of shirts, and some golf pants, as well as two of these quarter zips (and I currently have a third one in my Christmas list). I love the way they fit and the way they look. I’m a bigger guy too, so it’s not easy to find fashionable “ath-leisure” apparel that doesn’t make me look like a popped can of Pilsbury biscuit dough. The only thing close to a complaint I can think of is that these are a lightweight weight material and the collar doesn’t want to stand up on its own. I wish Maelreg made a medium weight version with a little sturdier of a collar, but that’s just me.
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Reviewed in the United States on December 10, 2025