Pacemaker | Tri-Y Design Exhaust Headers | Holden HK HT HG Small Block Chev 283–400 V8 | PH5302 L/R
SKU: 38707344241

Pacemaker | Tri-Y Design Exhaust Headers | Holden HK HT HG Small Block Chev 283–400 V8 | PH5302 L/R

Sale price$469.57 Regular price$521.75
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Pacemaker | Tri-Y Design Exhaust Headers | Holden HK HT HG Small Block Chev 283–400 V8 | PH5302 L/RPacemaker Tri Y Design Exhaust Headers Holden HK HT HG PH5302 L R Upgrade your classic Holden with these premium Pacemaker Tri Y design exhaust headers, specifically engineered for the Small Block Chevrolet V8 engine swap into HK, HT, and HG models. These headers provide a significant boost in low to mid range torque and engine efficiency, delivering that signature V8 rumble. Note: Will not fit with Power Steering. Please review starter motor and

Pacemaker Tri-Y Design Exhaust Headers - Holden HK-HT-HG - PH5302 L/R

Upgrade your classic Holden with these premium Pacemaker Tri-Y design exhaust headers, specifically engineered for the Small Block Chevrolet V8 engine swap into HK, HT, and HG models. These headers provide a significant boost in low-to-mid range torque and engine efficiency, delivering that signature V8 rumble. Note: Will not fit with Power Steering. Please review starter motor and mounting spacer requirements before installation.

Features:

This product offers the following high-performance features:

  • Tri-Y Header Design: Optimized pipe routing to maximize exhaust scavenging, specifically suited for the Chevrolet 283-400 Small Block V8.
  • Broad Compatibility: Fits slant plug heads and Powerglide automatic transmissions without modification.
  • Robust Construction: Built to withstand high heat and performance street use while maintaining a precise fit within the classic Holden engine bay.
Product Specifications for PH5302 L/R
Feature Value Feature Value
Part # PH 5302 Gasket DSF 9
P/Steering No Primary Pipe 1⅝" (41mm)
Air Con N/A Secondary Pipe 2" (51mm)
Oxy Sen N/A Outlet 2¼" (57mm)
E.G.R N/A Y Branch N/A
Fitting Time 3 Hrs Design Tri-Y Design

Important Notes:

  • Mounting Spacers: Must use original engine mounting spacers or Pacemaker PEMP 307. Ensure correct side fitment (RH is 1/4" higher).
  • Starter Motor: Fits factory starters on 153-tooth gears. For 168-tooth setups, an aftermarket hi-torque starter is required.
  • Fitment Warnings: Will not fit column automatics without linkage modification, and Turbo 400 requires floor modifications.

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 PH5302 L/R
Make Model From To Body Series Engine Variant Drivetrain
HOLDEN
Holden Monaro / Kingswood 1968 1971 Sedan / Coupe / Ute HK-HT-HG 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: 38707344241

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Amy Chamberlain
Los Angeles, US
★★★★★ 5
Cool pillow vase
Color: 01 - Light Grey
Nice cool material and stays kn the pillow well due to the snaps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
D
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Diana
Boise, US
★★★★★ 3
Ugly
Color: 01 - Light Grey
The light blue color looks like a hospital gown. Keeps cool but I don't think I can bear looking at it.
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Reviewed in the United States on May 9, 2026
E
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Elizabeth Johnson
Lexington, US
★★★★★ 5
Cooling pillowcase
Color: 01 - Light Grey
These cooling pillowcases are fabulous. I just have one complaint they snap at the end instead of having a zipper, which could be uncomfortable if you’re laying on that snap. Also, it’s very hard to unfasten.
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Reviewed in the United States on December 5, 2025
A
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Amazon Customer
Port Orchard, US
★★★★★ 5
Comfy and cooling pillow cases for sleeping
Color: 01 - Light Grey, Color: 01 - Light Grey
Cooling cover for my pillow, great quality and super soft. Helps with my sleep. Have eye mask as a gift too. Highly recommended.
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Reviewed in the United States on December 28, 2025
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Akeem
Natrona Heights, US
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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