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 12 - Jul 17

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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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4.4 ★★★★★
Based on 1420 reviews
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Product Reviews
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Verified Purchase
KDSpray95
Draper, US
★★★★★ 1
Scam
Color: Brown+Blue, Color: Brown+Blue
Zero stars! What a disgrace. I waited weeks due to the delivery date changing after I placed the order. Then the shipping went up and cost more than the toy. It lasted 5 mins after opening, and it's head fell off. It was not even sewn on. So much for indestructible!!! Then when I returned, they sent a auto comment asking if I would keep it and take a 50% refund. No freaking way!! I'm so irritated right now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
N
Verified Purchase
Nancy
Natrona Heights, US
★★★★★ 1
This is not even chew resistant!!
Color: Brown
If there was an option for ZERO stars that would be this. Within 5 minutes my little 11 pound Havanese had all the ears off, then out came the stuffing. He had the little dog, and a green duck. I had to take the duck away to sew it….then he still had studding everywhere…and that was the little dog. Throwing stuffing and pieces away….I should have put these right back in the bags they came in. In no way ate these even chew “resistant “!!!! Probably just look good onna shelf.👎👎
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
S
Verified Purchase
Sassafras
Grantham, US
★★★★★ 3
Not quite "indestructible"
Color: Green+Brown
These toys are so cute! But, they are NOT for aggressive chewers! 15 minutes and they were ruined. But for kinder chewers...they are adorable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 2
Easily Destructed
Color: Green+Orange
My dog destroyed it within a couple of days. The “rope” turned into strings which is dangerous if eaten
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Reviewed in the United States on May 31, 2026
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
Not as good as advertised
Color: Blue
Chewed up in 20 minutes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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