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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Pacemaker | Small Block Chev V8 283-400 | Holden HQ-WB 1 3/4" Tri-Y | PH5320 L/RPacemaker Chevrolet 283 400 Small Block V8 Holden HQ WB PH5320 L R Engineered for performance and durability, these Pacemaker Tri Y headers are designed to suit Holden HQ through WB models fitted with Small Block Chevrolet V8 engines ranging from 283 to 400 cubic inches. These headers provide excellent ground clearance and optimized exhaust scavenging for both street and strip applications. Note: Spacers must be fitted on the correct side; RH spacer
Pacemaker Chevrolet 283-400 Small Block V8 - Holden HQ-WB - PH5320 L/R
Engineered for performance and durability, these Pacemaker Tri-Y headers are designed to suit Holden HQ through WB models fitted with Small Block Chevrolet V8 engines ranging from 283 to 400 cubic inches. These headers provide excellent ground clearance and optimized exhaust scavenging for both street and strip applications. Note: Spacers must be fitted on the correct side; RH spacer is 1¾” high, LH spacer is 1¼” high.
Features:
This product offers the following high-performance features:
- Tri-Y Design: Specifically tuned to enhance mid-range torque and overall engine breathability.
- Transmission Compatibility: Precision fitment for Turbo 400 and Powerglide automatic transmissions.
- Heavy Duty Construction: Built to withstand the heat and vibration of high-displacement SBC V8 motors.
Product Specifications for PH5320 L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5320 | Gasket | DSF 9 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | 2" (51mm) |
| Oxy Sen | N/A | Outlet | 2¼" (57mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 2 Hrs | Design | Tri-Y |
Important Notes:
- Will fit Turbo 400 and Powerglide automatic transmissions.
- Will not fit slant plug heads or raised port heads.
- Will only fit with original engine mounting spacers or PACEMAKER spacers (Part # Pemp 350).
- RH spacer must be 1¾” high; LH spacer must be 1¼” high.
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 PH5320 L/R
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| HOLDEN | Kingswood / Belmont / Statesman / Monaro | 1971 | 1984 | Sedan / Ute / Wagon / Van / Coupe | HQ-HJ-HX-HZ-WB | Small Block Chev (283-400) | Manual & Automatic | 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
4.6 ★★★★★
Based on 103 reviews
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Product Reviews
★★★★★ 5
Perfect Flavor: NONE
Style: Unflavored (Pack of 1)
I see reviews writing "it tastes bad". Get over it you big babies! It doesn't. I have an allergy to peppermint and other unnatural man-made toxic flavorings and this is perfect! After the first few times the flavor is irrelevant and you get used to it. It cleans and cleans well. I don't wake up after brushing before going to bed with a mouth full of slimy coating on my teeth and bad aftertaste like I did with the other fake flavored toothpastes. I use Cleure for all my teeth brushing and haven't had any dental problems. The paste is smooth and I don't have irritation. It's great...I just wish the price point was a little lower since there's less added garbage in it.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Gentle, No harsh ingredients, no taste!
Style: Unflavored (Pack of 1)
This is the toothpaste you want if you want no additives or nothing.
There's really no taste to it, but that's the whole idea you're getting no additives no nothing.
It does have baking soda, and xylitol these are two great ingredients but overall it's very gentle.
If you're having any problems with skin or anything and you feel it could be from either fluoride, mint flavoring, SLS, or coconut oil or all the other stuff they put in there give this a try!
I'm on my second tube!
Yes you're not going to feel as super clean as the other ones but that's because it's not stripping everything off your teeth like the other ones do it's very gentle and if there's any issues with sensitivity or anything like that this is the way to go.
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Good ingredients
Style: Unflavored (Pack of 1)
The ingredients in this may appear to be boring, but for a fragrance-free, flavor free, toothpaste this one is not bad at all. It has a little bit of sweetener in it and it does a good job at leaving my mouth feeling clean and my teeth polished. I am very happy with this product and it is replacing a similar product that I was not happy with. This is a product I will reorder and continue to use as I am happy with the cleanliness and freshness.
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Reviewed in the United States on April 14, 2026
★★★★★ 4
No flavor toothpaste with a high price
Style: Unflavored (Pack of 3)
Great product at a not very great price. Maybe you came across this product while searching for unflavored or flavorless toothpaste. Well this does the trick it has no minty flavor to interfere with your morning coffee or your autism. But why does less ingredients mean a higher cost? I’m looking for something bare bones, no taste, and cheaper than the toothpaste they sell at most stores filled with chemicals! Why is this so hard to find?
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Acid Reflux and LPR
Style: Unflavored (Pack of 1)
I follow a dietician for those who deal with Acid reflux and LPR. Being without flavor especially peppermint, as mentioned by the dietician, can be helpful for some. I have found this to be true with this product. It seems to have helped reduce, or at least not add to, my feeling of throat and mouth burning.
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Reviewed in the United States on May 13, 2026