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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Verified Purchase
RS - Las Vegas, NV
Lake Worth, US
★★★★★ 5
Great Fit, No Problems.
Size: 1 Count
Great Factory part that's easy to install and performs as one would expect. Have purchased this part many times for my wife's Jeep and never had any problems.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
W
Verified Purchase
wayne
Los Angeles, US
★★★★★ 5
It is original part
Size: 1 Count
Amazon says this does not fit my town and country but it does. Have used it before so knew Amazon site was wrong
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
M
Verified Purchase
Manzo
Lowell, US
★★★★★ 5
Works as it should
Size: 1 Count
It fits my 2017 Chrysler 300S 3.6L and yet to have any issues. It better work as it is a MOPAR filter. I am happy with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 4
Correct part (Mopar MO-349) but shipping method could be improved.
Size: 1 Count, Size: 1 Count
I received what I ordered, Mopar MO-349 oil filters. However, they were shipped in what looked like an oversized paper bag and the boxes that contained the filters were crushed (see picture). They should have been shipped in a small box instead of a giant paper bag. The filters look ok but I guess I'll know for sure when I try to use them. Plus 4 stars for the product. Minus 1 star for Amazon shipping.
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Reviewed in the United States on April 25, 2026
J
Verified Purchase
John
Carnegie, US
★★★★★ 5
You can't go wrong buying OEM oil filters
Size: 1 Count
Good price cheaper than buying from Dealer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026

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