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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Fits 1973-1974 GM C-10/20 2WD 1-7/8", LS Swap Long Tube Header-S/S 70101304-RHKRThese Hooker BlackHeart Headers fit 1973 1974 GM C 10 20 2WD Trucks with LS engines. Long tube design for optimum engine performance and stainless steel construction for maximum corrosion resistance. These Headers are designed for use with Standard 12621HKR engine mounting brackets. Features: For GM LS engine swaps into 1973 1974 GM C 10 20 2WD Trucks 1 7 8" primary tube diameter and 3" collector diameter ideal for "hot" LS1 LS6 LS2 or 5. 3L 6. 0L
These Hooker BlackHeart Headers fit 1973-1974 GM C-10/20 2WD Trucks with LS engines. Long tube design for optimum engine performance and stainless steel construction for maximum corrosion resistance. These Headers are designed for use with Standard 12621HKR engine mounting brackets.
Features:
- For GM LS engine swaps into 1973-1974 GM C-10/20 2WD Trucks
- 1-7/8" primary tube diameter and 3" collector diameter ideal for "hot" LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swaps
- Long tube design for optimum engine performance
- 100% stainless steel construction
- Designed for use with 12621HKR engine mounting brackets
- Manufacturer's Limited Lifetime Warranty
Specs:
| 2WD/4WD | 2WD |
|---|---|
| Application | 1973-1974 GM C-10/20 Trucks |
| Bolt Size | M8 x 1.25 x 25mm |
| Brand | Hooker BlackHeart |
| CARB (California) Compliant | No |
| Choose Your Part | Headers |
| Collector Diameter | 3.00 inch |
| Emission Code | 4 |
| Engine | GM Gen III/IV (LS) |
| Exhaust Series | Hooker BlackHeart |
| Header Finish | Natural |
| Header Style | Long Tube |
| Material | 304 Stainless Steel |
| Primary Tube Dia. | 1-7/8 inch |
| Product Type | Headers |
| Subframe | Stock |
| Tube Material | 304 Stainless Steel |
| Type of Component | Headers |
| Warranty | Limited Lifetime Warranty |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 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 | GMC | C15/C1500 Suburban | Base |
| 1973-1974 | GMC | Jimmy | 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
4.2 ★★★★★
Based on 1113 reviews
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Product Reviews
★★★★★ 5
RV owner.
Excellent product. Delivers the shine and protection as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Poli Glow used on bottom portion of the picture
Just put it on 21 foot RV, was impressed with the shine. Key is to make sure the applicator is moist. I periodically dampen with water. Realizing it wasn't going to revive the stickers. Question is
How long it will last?
What will it look like after it rains?
Pictures attached, bottom portion was done with poli glow on June 7,2026 and I have just under a half of bottle left. Maybe I will update once it rains or how long the shine last.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
★★★★★ 5
This will work but prep is key!
I have an older RV that the gelcoat has dulled and is oxidized, but otherwise in good shape. I have buffed and polished in the past only for it to last a short time. I was looking up different products to try and this one has such good reviews, I thought I would give it a try. I bought the kit with the Poliglow and the Poliprep, with the scrubber and the microfiber glove. I started with the poliprep and it did a great job of gettting the streaks and black marks off. You spend a lot of time scrubbing to your likeness because anything that is still on the gelcoat when you apply the poliglow, it will be locked in there. The Poliglow is like a clearcoat that goes over the gelcoat. You have to build up layers and here are some of the tips and tricks I figured out that really helped my finished RV look great. First, make sure the applicator stays damp, this keeps the poliglow more uniform across the glove. Also, stick it in a zip lock bag when not using, you do not want it to dry out while you are using it. I found out that applying this in direct sunlight in warm temps, is the best method. This allows the poliglow to dry really fast. The first 3 or 4 layers will look streaky and dull but this is ok and as you build up the layers, the shine will come back. I found if you do this when its cooler, the layers do not dry as quick and you will get some permanent streaking or running. I had to remove a section I did in the evening because I noticed this. When in direct sunlight, this gave me the best results with no streaking or running. It dries fast and you can keep working. Like it says, do not do big sections at a time, keep it to small what you can reach sections and build those up and move on. As far as how much to buy? I have a 40 ft toy hauler and I got to kits and I had just enough to finish the whole thing minus the nose cap. I have Durabak on the nose cap, so I dont need to worry about that. I ended up buying one more bottle of the poliglow to have for my maintenance coats. Overall, I am pleased with how my 10 year old RV looks and other than some of the decals show age, it looks new again. If I were to buy a new RV, I would put this on right away and preserve the whole RV including the decals. Its not too expensive and its a lot of work, especially the prep, but it does end up with great results.
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Reviewed in the United States on July 21, 2023
★★★★★ 5
Excellent shine
Excellent line of products. Looking at the picture, you can see what the camper looked like before the Poli Glow. To the left of the window is the after Poli Glow.
It takes some elbow grease (follow instructions well) but well worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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