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 Β· Estimated delivery Jul 8 - Jul 13

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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 1ΒΎ" (44mm)
Air Con Yes Secondary Pipe 2" (51mm)
Oxy Sen N/A Outlet 2ΒΌ" (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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4.5 β˜…β˜…β˜…β˜…β˜…
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A
Verified Purchase
Amazon Customer
Louisville, US
β˜…β˜…β˜…β˜…β˜… 5
good purchase
Color: Red Nylon Yellow Hotdog
This thing is great for hi anxiety dogs and dogs that ned to have something to do or to chew. It will take them a while to get through to it. I was told that it was indestructible but I knew if there was a dog that could do it, it would be mine, and she did. But it took her some time. But she loves it and it keeps her busy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 24, 2025
M
Verified Purchase
Mary Ann
Boise, US
β˜…β˜…β˜…β˜…β˜… 5
Cute and durable!
Color: Red, Color: Red
My dog absolutely loves this toy! I'm not sure why people are complaining it's too hard, it's a nylon dog chew toy, it's supposed to be hard. I love the little holes in the lattice top I can stuff with treats. It keeps my very (VERY) active dog busy for a long time. I would definitely recommend this if you have a power chewer. It's also super cute, I just love to see him tote around a piece of pie.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2021
D
Verified Purchase
David H. Wahl
Massapequa, US
β˜…β˜…β˜…β˜…β˜… 5
Excellent product.
Color: Red Nylon Yellow Hotdog
Excellent product. Dogs loved it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
S
Verified Purchase
sandygirl
Massapequa, US
β˜…β˜…β˜…β˜…β˜… 5
Durable
Color: Red Nylon Yellow Hotdog
Durable and safe - made in USA. Dog enjoys it, and pet parents are delighted that it is safe for their fur baby. I bought the toy as a gift.
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Reviewed in the United States on January 4, 2026
B
Verified Purchase
BWW
San Leandro, US
β˜…β˜…β˜…β˜…β˜… 3
Pretty Good
Color: Red Nylon Yellow Hotdog
The toy is good for a heavy chewer, but is very slippery. You may want to rough it up a bit before giving it to your dog so they can hold onto it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026

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