SKU: 75820685104

Pacemaker | 2" Tri-Y Big Block Chev Conversion Headers | Holden HQ HJ HX HZ WB | PH5340 L/R

Sale price$613.69 Regular price$681.88
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Description

Pacemaker | 2" Tri-Y Big Block Chev Conversion Headers | Holden HQ HJ HX HZ WB | PH5340 L/RPacemaker 2" Tri Y Big Block Chev Conversion Headers Holden HQ WB PH5340 L R Engineered for the ultimate muscle car conversion, the Pacemaker PH5340 headers allow for the seamless installation of a Big Block Chevrolet V8 into the iconic Holden HQ, HJ, HX, HZ, and WB series. These high performance Tri Y headers are designed to handle the massive displacement and exhaust volume of 396 to 496 cubic inch engines. Featuring large 2" (51mm) primary pipes

Pacemaker 2" Tri-Y Big Block Chev Conversion Headers - Holden HQ-WB - PH5340 L/R

Engineered for the ultimate muscle car conversion, the Pacemaker PH5340 headers allow for the seamless installation of a Big Block Chevrolet V8 into the iconic Holden HQ, HJ, HX, HZ, and WB series. These high-performance Tri-Y headers are designed to handle the massive displacement and exhaust volume of 396 to 496 cubic inch engines. Featuring large 2" (51mm) primary pipes and a substantial 3" (76mm) outlet, they provide the necessary flow to maximize torque and horsepower from your big block. Proudly Australian-made, these headers offer the precision fitment and durable construction required for high-horsepower street and strip applications.

Features:

This product offers the following high-performance features:

  • Big Block Specific Design: Purpose-built for Chevrolet 396, 402, 409, 427, 454, and 496 Big Block V8 conversions.
  • High-Flow Tri-Y Configuration: Designed to optimize low-to-mid range torque while maintaining high-end power.
  • Heavy-Duty Construction: Features massive 2" (51mm) primary pipes and 2¼" (57mm) secondaries for maximum durability.
  • Large 3" Outlet: Ensures minimal backpressure for high-displacement engines.
  • Accessory Compatibility: Engineered to maintain clearance for Power Steering and Air Conditioning systems.
Product Specifications for PH5340 L/R
Feature Value Feature Value
Part # PH5340 Gasket DSF 23
Primary Pipe 2" (51mm) Secondary Pipe 2¼" (57mm)
P/Steering Yes Outlet 3" (76mm)
Air Con Yes Fitting Time 2 Hrs

Important Notes:

  • Mounting Requirements: These headers will only fit using HQ 350 Chev original engine mounting spacers or PACEMAKER spacers (Part Number: PEMP 350).
  • Spacer Orientation: Spacers must be fitted on the correct side (RH spacer is 1¾” high, LH spacer is 1¼” high).
  • Transmission Fitment: Compatible with both Manual and Automatic transmissions.

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
Holden Kingswood / Premier / Monaro / Statesman 1971 1984 Sedan / Ute / Wagon / Coupe / 1-Tonner HQ, HJ, HX, HZ, WB Big Block Chev V8 (396-496) 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: 75820685104

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4.1 ★★★★★
Based on 10 reviews
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E
Verified Purchase
Ellary
Port Orchard, US
★★★★★ 5
ABSOLUTELY PERFECT - I LOVE THIS!!!
Color: Pink
I absolutely LOVE this case and the keyboard - it’s absolutely perfect in just about every way. If I had to get nit-picky and find something to give feedback on, I would say it is a bit heavy and it is a bit annoying that you have to move the keyboard forward when you want to use it and backward when you want to close up the case but I don’t care, I love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
K
Verified Purchase
Kyle K.
Lake Worth, US
★★★★★ 5
iPad case
Color: Navy Blue
Great case, functions well and the keyboard is a nice touch. Would recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
C
Verified Purchase
C. Coleman
Lowell, US
★★★★★ 5
Quality Case
Color: Pink
This is an All in Pne case. I really like the lavender color with sparkles. It is a little heavier than expected but I still love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 3
Ok, but don’t use hand cream
Color: Black, Color: Black
I like the case for its ability to house the keyboard, the pencil and the iPad in one convenient place. I find that the magnetic closure and magnets holding the keyboard are not as strong as a previous case I had purchased. The keyboard is great, I like the touchpad and the backlight colors. The cover material is not hand lotion friendly! I’ve tried water and lens cleaning wipes, and neither gets this cover clean. I hesitate to use any chemicals because the material is the type that will get sticky and nasty, and I don’t like that. I’ve included a photo of what the cover looks like after using a lens cleaning wipe. If the magnets were stronger and the cover material easier to clean, I would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
S
Verified Purchase
Seth Walton
Whiting, US
★★★★★ 4
great case!
Color: Navy Blue
pros; the color is beautiful. I picked the navy blue. It is exactly as the description described. It goes very well with my blue iPad. The size is very precise and fits perfectly on my iPad. The magnet that holds the case together is very strong. The iPad itself can pivot vertically and horizontally using that magnet. This works very smooth. The magnet closure for the case itself is strong and holds well. The magnet that holds the keyboard in place also works very well. Cons; when the keyboard is in its correct position, it is difficult to angle the iPad in front into the provided grooves. The keyboard gets into the way. This prevents the iPad from reaching the grooves provided. The keyboard feels very light and cheap. The keyboard itself connected with the Bluetooth very easily. It works wonderful. I love the back light on the keyboard. The color of the keyboard is wonderful. However, as I said above, it does feel a bit cheap. But for 20 bucks, what can you ask for. When the case is folded together with the keyboard in the iPad, it is a bit bulky. But I knew that from the previous reviews and was expecting it. What I love most about this case is that the iPad can be removed using the magnet on the back from the keyboard portion, but it is still protected by the exterior plastic case. So in situations where I don’t need to use my keyboard, I can remove the iPad itself and know that it’s still protected overall I recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026

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