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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1
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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
4.4 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Nice amplifier for the cost.
Style: Stereo Receiver, Configuration: Receiver
I had been using my Marantz model 22 receiver now for a couple years now with the TV, dvd player, and youtube music from my tablet. I like lots of knots and switches on my audio gear, I'm an engineer. I was getting tired of the seemingly endless up and down to adjust volume and whatever. And my inputs on the Marantz were maxed out. I searched Amazon to see what was available as a possible replacement that had a REMOTE. This Sony caught my eye. Relatively inexpensive, plenty of inputs, and specs I could trust, not a 3x4x5 box offering 220+220 watts of unlimited power! Ordered it and been using it for over a month now. Only 2 knobs, how good could that be? Well, it's remote let's me control everything without getting up. Plenty of output power, 100+100 watts of true RMS power. I didn't plan on using the Bluetooth but I tried it with the tablet, keeping the tablet by me, and it really impressed this old audiophile. I really don't have any negatives about it, even the fm sounds great. It was heavier than expected but not as much as that old Marantz. I even popped the cover. The build quality was what I consider good. I only wish I could find a service manual with the schematic for it.
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Reviewed in the United States on September 23, 2025
★★★★★ 5
very good wire for marine applications.
Size: 60ft, Style: 14 Gauge
Great stuff for wiring up a marine system. I like the gauge of the wires, how they are shielded and very sturdy. They deliver the power to the speakers well and I have had zero issue with them. I would definitely purchase again. The wires were easy to solder and are color coded black and red. I used nearly the full 100ft spool to wire up 4 8" speakers on a 24 ft Skeeter Sx240. I feel the price was competitive and having delivery to the house is a plus. I didnt have any problems stripping the wires, very easy.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Worked great for boat install
Size: 30ft, Style: 10 Gauge
Bought this to run some accessories on my boat. Worked great and well made. Flexible even with the coating. Made for easy work and should last. I wouldn’t hesitate to buy again if needed.
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Reviewed in the United States on January 19, 2026
★★★★★ 5
High Quality Durable and Easy to Use
Size: 100ft, Style: 14 Gauge
This marine-grade wire is exactly what I needed for my boat's electrical setup The tinned copper construction ensures excellent conductivity and corrosion resistance making it perfect for marine automotive RV and solar applications
The PVC insulation is thick and durable providing extra protection against moisture and wear The wire is flexible yet strong making it easy to route through tight spaces without breaking or kinking
This product offers great value for money excellent functionality and is easy to use If you need reliable waterproof and corrosion-resistant wiring for your boat or RV this is a fantastic choice Highly recommend
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Reviewed in the United States on January 31, 2025
★★★★★ 5
Sturdy and works great
Size: 15ft, Style: 8 Gauge
Used this for an approximately 8' run in my electric UTV to power a 2500W inverter running off the 48V batteries so I could power AC tools out in the field. Very thick casing and nice and strong, but flexible enough to route around the frame of the UTV.
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Reviewed in the United States on December 17, 2025