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Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R

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Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R

Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R

Pacemaker 1 3/4" Competition Tri-Y Headers - Holden HQ-WB 304-355 5.0L EFI - PH5275 L/R

Maximize the performance of your EFI-converted classic Holden with these premium Pacemaker Competition Tri-Y headers. Specifically designed for HQ through WB models fitted with a 5 Litre EFI motor (304) or EFI heads on a traditional block, these headers deliver exceptional exhaust scavenging for high-performance 304, 355, or supercharged builds. Note: Engineered for engine conversions using VN-VT Series 1 engine platforms.

Features:

This product offers the following high-performance features:

  • Competition Tri-Y Design: Features large 1¾" (44mm) primary pipes transitioning to 2" (51mm) secondaries for maximum torque and high-rev flow.
  • Stroker & Supercharger Ready: Specifically tuned to support 5.7 Litre stroked engines or supercharged applications requiring high-volume exhaust evacuation.
  • Broad Compatibility: Precision engineered to clear various manual and automatic transmissions, including Supra 5-speed and Turbo 700 conversions.
Product Specifications for PH5275 L/R
Feature Value Feature Value
Part # PH 5275 Gasket DSF 63
P/Steering Yes Primary Pipe 1¾" (44mm)
Air Con Yes Secondary Pipe 2" (51mm)
Oxy Sen Yes Outlet 3" (76mm)
E.G.R N/A Y Branch N/A
Fitting Time 2 Hrs Design Competition Tri-Y

Important Notes:

  • Compatible with High Energy Sump (including HE2101).
  • Will clear HQ type mechanical clutch linkages.
  • Fits a wide range of transmissions including Australian 4-speed, VN-VS 5-speed, Supra 5-speed, Trimatic, and Turbo 350/400/700.

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 PH5275 L/R
Make Model From To Body Series Engine Variant Drivetrain
HOLDEN
Holden Kingswood / Monaro / Ute 1971 1984 Sedan / Wagon / Ute / Van HQ-WB 304 / 308 EFI 5.0L Engine Conv. 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.

$204.63

Original: $584.66

-65%
Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R

$584.66

$204.63

Product Information

Shipping & Returns

Description

Pacemaker 1 3/4" Competition Tri-Y Headers - Holden HQ-WB 304-355 5.0L EFI - PH5275 L/R

Maximize the performance of your EFI-converted classic Holden with these premium Pacemaker Competition Tri-Y headers. Specifically designed for HQ through WB models fitted with a 5 Litre EFI motor (304) or EFI heads on a traditional block, these headers deliver exceptional exhaust scavenging for high-performance 304, 355, or supercharged builds. Note: Engineered for engine conversions using VN-VT Series 1 engine platforms.

Features:

This product offers the following high-performance features:

  • Competition Tri-Y Design: Features large 1¾" (44mm) primary pipes transitioning to 2" (51mm) secondaries for maximum torque and high-rev flow.
  • Stroker & Supercharger Ready: Specifically tuned to support 5.7 Litre stroked engines or supercharged applications requiring high-volume exhaust evacuation.
  • Broad Compatibility: Precision engineered to clear various manual and automatic transmissions, including Supra 5-speed and Turbo 700 conversions.
Product Specifications for PH5275 L/R
Feature Value Feature Value
Part # PH 5275 Gasket DSF 63
P/Steering Yes Primary Pipe 1¾" (44mm)
Air Con Yes Secondary Pipe 2" (51mm)
Oxy Sen Yes Outlet 3" (76mm)
E.G.R N/A Y Branch N/A
Fitting Time 2 Hrs Design Competition Tri-Y

Important Notes:

  • Compatible with High Energy Sump (including HE2101).
  • Will clear HQ type mechanical clutch linkages.
  • Fits a wide range of transmissions including Australian 4-speed, VN-VS 5-speed, Supra 5-speed, Trimatic, and Turbo 350/400/700.

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 PH5275 L/R
Make Model From To Body Series Engine Variant Drivetrain
HOLDEN
Holden Kingswood / Monaro / Ute 1971 1984 Sedan / Wagon / Ute / Van HQ-WB 304 / 308 EFI 5.0L Engine Conv. 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.