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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.
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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
4.0 ★★★★★
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Product Reviews
★★★★★ 4
Good mattress for company
Color: White, Size: S06-Single
This mattress is great for when you have a crowd coming to visit. It's easy to move around and it's pretty comfortable. I took it camping and slept well. It's not great as a chair unless you lean the back against a wall. Single bed sheets fit on it nicely.
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Reviewed in the United States on March 31, 2026
★★★★★ 5
Very faint smell for two days, but did not disturb my sleep.
I am 120 lbs and this feels to me more of a medium firm foam. It is very comfortable for laying on my back, but it hurts my hips when I lay on my side for a while. The cover is nice and velvety, and looks to be sturdy. It had a slight smell for two nights, but very faint enough that I was able to sleep on it the day it was delivered. The smell never woke me up, as the smell was very faint. The foam expanded to full size all over within hours, and has no uneven places.
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Reviewed in the United States on December 9, 2025
★★★★★ 3
MAYBE MOLDY
it’s a good little bed for if your ina pinch but it produces moisture whenever it’s in a cold room so it could attract mold eventually just a fair warning
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Comfortable & durable.
Color: White, Size: S06-Single
Needed to take care of a family member in a small studio apartment. There was no room for a bed so I needed to sleep on the floor. I chose the narrowest twin size but found it big enough for me & I am a size 18. Very good foam, dense but soft. I've been sleeping on it daily for over 6 months & it is still comfortable. Someone else also slept on it a number of times & also found it comfortable. Very happy with this purchase.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
The price was great
Style: Original, Size: Standard/Queen
I couldn’t believe how comfortable they are
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Reviewed in the United States on January 2, 2026