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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1808 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Best work shoe
Size: 10.5, Color: Grey
Lots of compliments and comfortable too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
A
Verified Purchase
Alyssa P.
Bozeman, US
★★★★★ 3
Good for the price but will not repurchase
Size: 9, Color: Grey
My husband loved these at first. Pros -easy to get on/off -stylish -comfortable -interior/exterior sole construction lasted longer than other more expensive shoes -price is great Cons -after less than a year the mouth of the shoe widened to a point where they slide off way too easy rendering them almost unwearable. -laces cannot be tightened
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
N
Verified Purchase
napoleon cruz
Los Angeles, US
★★★★★ 5
Great !!
Size: 8, Color: Black/Black, Size: 8, Color: Black/Black
This item is awesome! Fits good & lightweight ! .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
C
Verified Purchase
chrisazonian
Louisville, US
★★★★★ 5
Great watch - looks good and keeps good time
I love this thing. Good for a big wrist. Lume holds well and the blue lume looks awesome with the white/blue theme. Holds writhing a couple seconds (2-5) per day, which is pretty excellent at this price point. Would recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
J
Verified Purchase
Juan D.
West Palm Beach, US
★★★★★ 5
Excelente reloj. Lujosa presentacio
El reloj es de excelente calidad y una apariencia deportiva, pero sobria. Luce muy bien y su construcción es muy fuerte. La caratula blanca es delicada y las marcas de hora azules cambian a un celeste brillante, según la incidencia de la luz. El mecanismo es muy preciso. Lo compre de hace un mes y he estado verificando la hora con un reloj de referencia en linea y no ha tenido variación. Lo mantengo en una caja enrrolladora automática.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2025

recommand products