SKU: 30101926952

Pacemaker | Tri-Y Design Exhaust Headers | Holden HQ HJ HX HZ WB 304 5.0L EFI V8 | PH 5270 L/R

Sale price$487.13 Regular price$541.26
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Description

Pacemaker | Tri-Y Design Exhaust Headers | Holden HQ HJ HX HZ WB 304 5.0L EFI V8 | PH 5270 L/RPacemaker Tri Y Design Exhaust Headers Holden HQ WB 304 EFI V8 Conversion PH 5270 L R Specifically engineered for the classic Holden HQ WB series, these Pacemaker Tri Y exhaust headers are the perfect solution for 5. 0L EFI engine conversions. Whether you are running a complete VN VT Series 1 304 V8 or fitting EFI heads to your original 253 308 block, these headers optimize exhaust scavenging to deliver significant gains in mid range torque and

Pacemaker Tri-Y Design Exhaust Headers - Holden HQ-WB 304 EFI V8 Conversion - PH 5270 L/R

Specifically engineered for the classic Holden HQ-WB series, these Pacemaker Tri-Y exhaust headers are the perfect solution for 5.0L EFI engine conversions. Whether you are running a complete VN-VT Series 1 304 V8 or fitting EFI heads to your original 253-308 block, these headers optimize exhaust scavenging to deliver significant gains in mid-range torque and throttle response. Note: Confirmed fitment for both Manual and Automatic transmissions.

Features:

This product offers the following high-performance features:

  • Tri-Y Header Design: Optimized for high-efficiency exhaust flow, providing the best balance of low-end torque and high-end power for the 5.0L EFI V8.
  • Conversion Ready: Tailored specifically for HQ-WB chassis using VN, VP, VR, VS, or VT Series 1 engine components.
  • Mechanical Clutch Compatible: Engineered to clear the HQ-style mechanical "Rat Trap" clutch system.
  • Oxygen Sensor Ready: Integrated provisions for Oxy Sensors to support EFI engine management systems.
Product Specifications for PH 5270 L/R
Feature Value Feature Value
Part # PH 5270 Gasket DSF 63
P/Steering Yes Primary Pipe 1⅝" (41mm)
Air Con Yes Secondary Pipe 1⅞" (48mm)
Oxy Sen Yes Outlet 2¼" (57mm)
E.G.R N/A Y Branch N/A
Fitting Time 2 Hrs Design Tri-Y Design

Gearbox & Sump Compatibility:

  • Gearboxes: Australian 4-speed (cable clutch), T5 (VN-VS), Toyota Supra 5-speed (Hatfield bellhousing), Trimatic, Turbo 350, Turbo 400, and Turbo 700 (with Hatfield rear cross member).
  • Sumps: Will fit with High Energy Sump Part No. HE2101.

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 PH 5270
Make Model From To Body Series Engine Variant Drivetrain
HOLDEN
Holden Monaro / Kingswood / Statesman 1971 1984 Sedan / Ute / Wagon HQ-HJ-HX-HZ-WB 304 5.0L EFI V8 (VN-VT S1) 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:
  1. 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
SKU: 30101926952

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Tori Lawrence
Bozeman, US
★★★★★ 5
Durable
Color: Michigan State Spartans, Style: Goal Post Chew Toy
My frenchies love this thing, they've had it for a month and its just now starting to wear down. Hopefully its safe to eat bc they've nawwed it down to the first post. 😅 Its easy for them to stabilize and really get to chewing. Would buy again
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Reviewed in the United States on October 20, 2025
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Susan
Omaha, US
★★★★★ 5
Great For Michigan Fans!
Color: Michigan Wolverines, Style: Goal Post Chew Toy
I got this toy for my puppies and it’s been a hit! Not only does it look great with the Michigan Wolverines design, but it’s also really durable. My dogs love chewing on it and it’s holding up really well despite their intense chewing. It’s the perfect way for any Michigan fan to spoil their furry friends while showing some team spirit. Definitely recommend it for dog owners who want something tough, fun, and stylish for their dogs!
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Reviewed in the United States on January 26, 2025
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Swano
Natrona Heights, US
★★★★★ 1
Field Goal MISSED
Color: Kentucky Wildcats, Style: Goal Post Chew Toy
Got ripped off on this one. I missed or they lied about this product IS MADE IN CHINA. The school logo washed off in water when I first received before giving to dog. Gave to dog and she took one sniff and one bite and walked away. After a week of laying with dog chews, I threw it away.
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Reviewed in the United States on October 16, 2025
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Carolyn Lutz
Lowell, US
★★★★★ 3
Subpar manufacturing
Color: Penn State Nittany Lions, Style: Goal Post Chew Toy
We bought one of these dog toys in Happy Valley and our dogs LOVED it. I purchased two on Amazon and am disappointed with the shipment. One toy was 1st quality. The second one was in packing that was stapled back together and what we found was the toy was subpar. There were sharp pieces left from the molding process. I’m not sure how this wasn’t caught in the manufacturing process.
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Reviewed in the United States on April 7, 2025
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Lailah Rich
San Leandro, US
★★★★★ 5
Beware of tiny plastic pieces
Color: Alabama Crimson Tide, Style: Goal Post Chew Toy
My nephew (brother's dog) loved it so much he has almost tore it to shreds in almost half of a year span.
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Reviewed in the United States on October 18, 2025

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