Pacemaker | Small Block Chev V8 283-400 | Holden HQ-WB 1 3/4" Tri-Y | PH5320 L/R
SKU: 38002302689

Pacemaker | Small Block Chev V8 283-400 | Holden HQ-WB 1 3/4" Tri-Y | PH5320 L/R

Sale price$469.57 Regular price$521.75
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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:
  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: 38002302689

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Scotty
Grantham, US
★★★★★ 5
Good Shirt, Good Price
Size: Large, Color: White
Nice shirt, seems like good quality. Excellent fit on my skinny son. He enjoys the shirt.
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Reviewed in the United States on April 16, 2026
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Robert B. Peters III
Fort Morgan, US
★★★★★ 4
Not bad for the price.
Size: Large, Color: White
For the price not a bad product. Just a little short.
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Reviewed in the United States on March 24, 2026
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WARD
Port Orchard, US
★★★★★ 5
Excelente
Size: Small, Color: Blue
nice fit
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Reviewed in the United States on March 21, 2026
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ANAND S BISHT
Dallas, US
★★★★★ 1
DON’T WASTE TIME AND MONEY
Size: Large, Color: White
CHEAP ITEM NOT WORTH WASTING YOUR TIME AND MONEY
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Reviewed in the United States on March 28, 2026
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LM
Birmingham, US
★★★★★ 5
Stylish
Size: Large, Color: White
This Alimens & Gentle Oxford shirt is honestly a great addition to any wardrobe and completely exceeded my expectations ⭐⭐⭐⭐⭐. The material thickness is spot on. It’s not too thin and not heavy either, which makes it perfect for both work and casual wear. The fabric feels sturdy and well structured without being stiff or uncomfortable. The style is clean, classic, and versatile. It looks sharp enough for business or office settings, but you can easily dress it down for a more casual look. The white color is crisp and polished, and the cut gives it a modern, put together appearance without feeling too formal. Quality really stands out with this shirt. The stitching is neat, the buttons are secure, and everything feels well made. It holds its shape nicely even after wearing it all day, and it doesn’t feel like one of those shirts that loses structure after a few washes. Comfort is another big win. The stretch in the fabric makes a noticeable difference, especially when moving around, sitting, or reaching. It feels flexible and breathable, and you don’t feel restricted at all. It’s the kind of shirt you can wear from morning to night without feeling uncomfortable. Wrinkle resistance is impressive. Even after a long day or sitting for hours, it still looks fairly smooth and presentable. A quick hang or light touch up is all it needs, which is great if you’re trying to save time. Value for money is excellent. For the price, you’re getting a stylish, comfortable, and well made shirt that easily competes with much more expensive brands. It looks professional, feels great, and performs well. Overall this shirt checks all the boxes. Great material, sharp style, solid quality, comfortable fit, and very good wrinkle resistance. I’d definitely recommend it and would happily buy more in different colors.
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Reviewed in the United States on February 5, 2026

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