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Description
Pacemaker | Competition Headers | Holden HK-HT-HG Small Block Chev V8 283-400 | PH5305 L/RPacemaker 4 into 1 Competition Headers Holden HK HT HG Small Block Chev V8 PH5305 L R Maximize the performance of your Small Block Chevrolet powered classic Holden with these Pacemaker Competition Headers. Specifically engineered for the HK, HT, and HG series, these 4 into 1 tuned headers are designed to provide superior exhaust flow for engines ranging from 283 to 400 cubic inches. Whether you are running a street machine or a track oriented build,
Pacemaker 4-into-1 Competition Headers - Holden HK-HT-HG Small Block Chev V8 - PH5305 L/R
Maximize the performance of your Small Block Chevrolet-powered classic Holden with these Pacemaker Competition Headers. Specifically engineered for the HK, HT, and HG series, these 4-into-1 tuned headers are designed to provide superior exhaust flow for engines ranging from 283 to 400 cubic inches. Whether you are running a street machine or a track-oriented build, these headers deliver the high-flow efficiency your V8 demands.
Features:
This product offers the following high-performance features:
- Tuned 4-into-1 Design: Precision-engineered primary lengths ensure optimal exhaust scavenging and maximum power output.
- Slant Plug Compatibility: Designed to clear slant plug cylinder heads, providing flexibility for various performance head setups.
- High-Flow 3" Outlet: Large 76mm outlet minimizes backpressure, allowing your SBC motor to breathe freely.
- Automatic Transmission Fitment: Compatible with Powerglide and Turbo 400 automatic transmissions (see important notes regarding T400).
Product Specifications for PH 5305
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5305 | Gasket | DSF 9 |
| P/Steering | No | Primary Pipe | 1¾" (44mm) |
| Air Con | N/A | Secondary Pipe | - |
| Oxy Sen | N/A | Outlet | 3" (76mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 3 Hrs | Design | 4 into 1 (Tuned) |
Important Notes:
- Will fit slant plug heads and Powerglide automatic transmissions.
- Will fit Turbo 400 automatic only if the vehicle floor has been modified/cut for correct fitment.
- Requires original engine mounting spacers or PACEMAKER spacers (Part # PEMP 307). Spacers must be fitted to the correct side (RH is 1/4” higher than LH).
- Fits LH hydraulic clutch conversions only.
- Will not fit: Column automatic models or vehicles equipped with Power Steering.
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for PH5305 L/R
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| Holden | Kingswood / Monaro / Belmont | 1968 | 1971 | Sedan / Coupe / Ute / Wagon | HK, HT, HG | Small Block Chev V8 (283-400) | Manual & Floor Auto | RWD |
Warranty Information
| Product | Warranty Period |
|---|---|
| Pacemaker Headers | Two (2) years. |
| Pacemaker King Brown 4x4 Exhaust systems | Five (5) years. |
| Pacemaker Sports exhaust systems | Five (5) years. |
| Fabrication products and accessories | One (1) year. |
Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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
4.1 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Fabric soft & cool
Color: White, Size: King
Soft
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 5
So soft and amazing quality
Color: 12 - Light Beige, Size: Twin
I can't tell you if they're cooling or not yet. The weather took a turn for the cold so I haven't put them on the bed yet. But the quality..omg it's exceptional! These are insanely soft! Not slippery like satin but not scratchy like percale. They're like the best of both worlds..light as satin but nicely weighty like percale. I don't know what kind of sorcery this is but these are literally better than those 6-zillion count Egyptian cotton sheets that cost more than the GDP of a small nation. These are exceptional!! Soft as butter but still feel like they'll last a while and not let you fall out of bed like silk lol.
When you fold them, they snap nicely.
They seem to have a lived in look..like they'll never be utterly wrinkle-free but who cares..they're smooth, soft and supposed to be cooling.
I never thought I'd find anything more comfortable than cotton sheets but these are even better.
The colors are ok. Pretty basic but they are true to life..some others look different online than when you get them..not these colors online are accurate.
This was a great deal and I'd recommend a thousand times over!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Cool and Comfy
Color: 01 - Dark Grey, Size: Queen
I bought these sheets based on reviews and price. Very pleased with quality. Definitely cooling and comfortable to lay on. Very smooth, almost satiny, to touch. Got in dark gray, color very pretty. Great quality for the price.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
The softest sheets ever! 💙
Color: 05 - Dusty Blue, Size: Queen, Color: 05 - Dusty Blue, Size: Queen
This sheets quality feels great! It feels a little heavy but comfortable. I love the way it just drops. It feels cool to the touch, and so so gently on my skin! I previous had gotten a 100% cotton sheets from this same brand and it feels soooo rough on my skin, but this one is great! Best money spent! Bamboo material! I'm never going back! I got the dusty blue, in the photo is looks gray because of light but I love the blue color, it looks great!
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Reviewed in the United States on June 7, 2026
★★★★★ 4
Comfy, cool
Color: 01 - Dark Grey, Size: Queen
This is my first time buying rayon/ bamboo sheets, and now I finally see what I've been missing. Very comfortable, soft, and feel really nice against the skin. Nice for this price point too. I took off one star because they do tend to wrinkle quickly, so I have to readjust them every night before going to bed. Also be aware that oil from your skin and hair products tend to stain them very quickly, and the stains are not easy to get out. But I'm ok with that as a trade-off for the comfort!
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Reviewed in the United States on May 15, 2026
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