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Description
Fits 1987 Chevrolet Blazer; Standard Engine Mount Brackets - 12621HKRHooker BlackHeart application specific LS swap engine mounting brackets remove the installation guesswork and compatibility uncertainty that comes with using universal adjustable swap plate mounting methods. These brackets are designed to achieve optimized component clearances and drivetrain U joint operation angles in this application when used in conjunction with p n 12646HKR transmission crossmember and Hooker BlackHeart long tube headers and dual
Hooker BlackHeart application-specific LS swap engine mounting brackets remove the installation guesswork and compatibility uncertainty that comes with using universal/adjustable swap plate mounting methods. These brackets are designed to achieve optimized component clearances and drivetrain/U-joint operation angles in this application when used in conjunction with p/n 12646HKR transmission crossmember and Hooker BlackHeart long-tube headers and dual exhaust systems co-developed for this application. LS Oil Pan 302-1 will work with these engine mount brackets
Features:
- Welded Steel Construction
- Designed for light weight, rigidity and a clean appearance
- Zinc plated for durability and corrosion resistance
- Come complete with attachment hardware and instructions
- Work with stock small-block Chevy clamshell mounts
- Designed for use with Hooker BlackHeart headers for this application.
- LS Oil Pan 302-1 will work with these engine mount brackets
Specs:
| Application | 1973-1987 Chevrolet / GMC C10 Series Truck |
|---|---|
| Brand | Hooker BlackHeart |
| Choose Your Part | Engine Mounts |
| Color | Silver |
| Emission Code | 5 |
| Finish | Zinc |
| Material | Steel |
| Motor Type | GM LS |
| Product Type | Engine Mounts |
| Transmission | 200R4 |
| Transmission | 4L60E |
| Transmission | 4L65E |
| Transmission | 4L70E |
| Transmission | 4L75E |
| Transmission | 4L80E |
| Transmission | 4L85E |
| Transmission | 6L80E |
| Transmission | 700R4 |
| Transmission | Powerglide |
| Transmission | T56 GM |
| Transmission | T56 Magnum GM |
| Transmission | TH350 |
| Transmission | TH400 |
| Type of Component | Engine Mount Bracket |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987 | Chevrolet | Blazer | Silverado |
| 1987 | Chevrolet | C15 | Base |
| 1986-1987 | Chevrolet | C20 | Base |
| 1975-1987 | Chevrolet | C20 | Cheyenne |
| 1987 | Chevrolet | R10 | Custom Deluxe |
| 1987 | Chevrolet | R10 | Scottsdale |
| 1987 | Chevrolet | R10 | Silverado |
| 1987 | Chevrolet | R10 Suburban | Custom Deluxe |
| 1987 | Chevrolet | R10 Suburban | Scottsdale |
| 1987 | Chevrolet | R10 Suburban | Silverado |
| 1987 | Chevrolet | R20 | Custom Deluxe |
| 1987 | Chevrolet | R20 | Scottsdale |
| 1987 | Chevrolet | R20 | Silverado |
| 1987 | Chevrolet | R20 Suburban | Custom Deluxe |
| 1987 | Chevrolet | R20 Suburban | Scottsdale |
| 1987 | Chevrolet | R20 Suburban | Silverado |
| 1987 | GMC | R1500 | Base |
| 1987 | GMC | R1500 | High Sierra |
| 1987 | GMC | R1500 | Sierra Classic |
| 1987 | GMC | R1500 Suburban | Base |
| 1987 | GMC | R1500 Suburban | High Sierra |
| 1987 | GMC | R1500 Suburban | Sierra Classic |
| 1987 | GMC | R2500 | Base |
| 1987 | GMC | R2500 | High Sierra |
| 1987 | GMC | R2500 | Sierra Classic |
| 1987 | GMC | R2500 Suburban | Base |
| 1987 | GMC | R2500 Suburban | High Sierra |
| 1987 | GMC | R2500 Suburban | Sierra Classic |
| 1975-1986 | Chevrolet | C10 | Custom |
| 1975-1986 | Chevrolet | C10 | Scottsdale |
| 1975-1986 | Chevrolet | C10 | Silverado |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1975-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1975-1986 | Chevrolet | C10 Suburban | Silverado |
| 1982-1986 | Chevrolet | C15 | Cheyenne |
| 1982-1986 | Chevrolet | C15 | Custom |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1975-1986 | Chevrolet | C20 | Scottsdale |
| 1975-1986 | Chevrolet | C20 | Silverado |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1975-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1975-1986 | Chevrolet | C20 Suburban | Silverado |
| 1979-1986 | GMC | C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 Suburban | High Sierra |
| 1979-1986 | GMC | C1500 Suburban | Sierra Classic |
| 1979-1986 | GMC | C2500 | Base |
| 1979-1986 | GMC | C2500 | High Sierra |
| 1979-1986 | GMC | C2500 | Sierra Classic |
| 1984 | Chevrolet | C15 | Sport |
| 1981-1982 | Chevrolet | K5 Blazer | Custom |
| 1978-1982 | Chevrolet | K5 Blazer | Silverado |
| 1979-1982 | GMC | C1500 Suburban | Sierra Grande |
| 1979-1982 | GMC | C2500 | Sierra Grande |
| 1973-1982 | GMC | Jimmy | Base |
| 1975-1982 | GMC | Jimmy | High Sierra |
| 1975-1982 | GMC | Jimmy | Sierra Classic |
| 1975-1982 | GMC | Jimmy | Sierra Grande |
| 1978-1982 | GMC | Jimmy | Street Coupe |
| 1975-1981 | Chevrolet | C10 | Cheyenne |
| 1981 | Chevrolet | C10 | Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1981 | Chevrolet | K5 Blazer | Deluxe |
| 1978-1980 | Chevrolet | C10 | Big Ten |
| 1975-1980 | Chevrolet | C10 | Custom Deluxe |
| 1975-1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1975-1980 | Chevrolet | C20 | Custom Deluxe |
| 1975-1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1975-1980 | Chevrolet | K5 Blazer | Cheyenne |
| 1975-1980 | Chevrolet | K5 Blazer | Custom Deluxe |
| 1975-1978 | GMC | C15 | Base |
| 1977-1978 | GMC | C15 | Heavy Half |
| 1975-1978 | GMC | C15 | High Sierra |
| 1975-1978 | GMC | C15 | Sierra Classic |
| 1975-1978 | GMC | C15 | Sierra Grande |
| 1978 | GMC | C15 | Street Coupe |
| 1975-1978 | GMC | C15 Suburban | Base |
| 1975-1978 | GMC | C15 Suburban | High Sierra |
| 1975-1978 | GMC | C15 Suburban | Sierra Classic |
| 1975-1978 | GMC | C15 Suburban | Sierra Grande |
| 1975-1978 | GMC | C25 | Base |
| 1975-1978 | GMC | C25 | High Sierra |
| 1975-1978 | GMC | C25 | Sierra Classic |
| 1975-1978 | GMC | C25 | Sierra Grande |
| 1975-1978 | GMC | C25 Suburban | Base |
| 1975-1978 | GMC | C25 Suburban | High Sierra |
| 1975-1978 | GMC | C25 Suburban | Sierra Classic |
| 1975-1978 | GMC | C25 Suburban | Sierra Grande |
| 1977 | GMC | C15 | Indy Hauler |
| 1976 | Chevrolet | K5 Blazer | Base |
| 1973-1974 | Chevrolet | Blazer | Base |
| 1973-1974 | Chevrolet | C10 Pickup | Base |
| 1973-1974 | Chevrolet | C10 Suburban | Base |
| 1973-1974 | Chevrolet | C20 Pickup | Base |
| 1973-1974 | Chevrolet | C20 Suburban | Base |
| 1973-1974 | GMC | C15/C1500 Suburban | Base |
| 1973-1974 | GMC | C25/C2500 Pickup | Base |
| 1973-1974 | GMC | C25/C2500 Suburban | Base |
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
4.5 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 3
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Size: 11.5 Little Kid, Color: Lavender
These were so cute, but run narrow. My daughter tried wearing them but she kept complaining they were too tight. Wish we could love them because I love how easy this brand is for my daughter to get on her feet
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Reviewed in the United States on August 19, 2025
★★★★★ 5
👍
Excelente 👌
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Reviewed in the United States on December 17, 2024
★★★★★ 5
Supports DP Alt + Power Delivery from one source
This is one of the very, very few USB-C hubs out there that successfully pushes DisplayPort Alt and 100w PD functionality from one source cable to one device. My monitor has a USB-C DP alt port that also pushes 95w PD and this hub successfully pushes both of those to my laptop, phone, and android handheld console. The marketing material says something about USB PD cannot work with DP alt, but it seems to be working fine for me so who knows. With this little hub in-between the link from the monitor to the device, I can now add a USB ethernet adapter and game controller, and I only ever have to plug one USB-C cable into my device (and I am using a USB4 extension cable with no issues as well) and it all works perfectly!
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Supports Reverse Charging a Laptop on Monitors with USB-C PD!
This adapter is unique in that it supports reverse charging + video on the same port. I use this with an LG monitor (60W PD) and an M1 Pro Mac.
At first, I had connectivity issues: hub was disconnecting and reconnecting every few seconds. I followed advice to update the firmware on the hub, but that didn't solve the issue. Turns out, my monitor also needed a firmware update. Once I updated the monitor firmware, it stabilized and has been working great ever since.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Works perfectly with Macbook Air M2 - power, audio, video, sleep/wake, in clamshell mode!
My monitor has a USB-C video input that supports power delivery - so I was supposed to be able to charge my laptop with the same connection that goes to the monitor. Have had trouble finding an unpowered hub that actually supports all this without any hiccups, but according to all the specs I knew this was supposed to be possible.
But this one does! Now I can connect my apple laptop to my monitor, keyboard and mouse, and run in clamshell mode or with the laptop open, and it charges, wakes from sleep, does all the things I want. It also sends audio to the monitor (as it should). And I only need one USB-C connection to my laptop to do all this.
Note: I just got this hub so I don't know about longevity, and I haven't tested transfer speeds from all the ports on the hub, because that's not a big concern for me.
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Reviewed in the United States on March 25, 2026