SKU: 89420173948

Pacemaker | 1 3/4" Tri-Y Competition Headers | 351 Windsor Spread Port XR-XY | PH4036 L/R

Sale price$534.59 Regular price$593.99
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Description

Pacemaker | 1 3/4" Tri-Y Competition Headers | 351 Windsor Spread Port XR-XY | PH4036 L/RPacemaker Tri Y Competition Headers 351 Windsor Spread Port Head PH4036 L R Engineered for high performance small block Ford builds, the Pacemaker PH4036 Competition series headers are designed specifically for the 351 Windsor engine equipped with Spread Port Dual Bolt Pattern cylinder heads. Unlike standard Windsor headers, these feature a Tri Y design with large 1" (44mm) primary pipes that step into 2" (51mm) secondaries, ultimately flowing into a

Pacemaker Tri-Y Competition Headers - 351 Windsor Spread Port Head - PH4036 L/R

Engineered for high-performance small block Ford builds, the Pacemaker PH4036 Competition series headers are designed specifically for the 351 Windsor engine equipped with Spread Port / Dual Bolt Pattern cylinder heads. Unlike standard Windsor headers, these feature a Tri-Y design with large 1¾" (44mm) primary pipes that step into 2" (51mm) secondaries, ultimately flowing into a 3" (76mm) outlet. This configuration is ideal for maximizing mid-range torque and high-end horsepower in classic Falcon and Fairlane models. Whether you are running a period-correct XR-XY or performing an engine swap into later chassis, these Australian-made headers provide the precision fitment and superior flow required for competition-level performance.

Features:

This product offers the following high-performance features:

  • Spread Port Compatibility: Designed exclusively for 351 Windsor heads featuring the wider dual bolt pattern.
  • Competition Tri-Y Design: Optimized for a broad power band and increased exhaust gas velocity.
  • Heavy-Duty Piping: 1¾" (44mm) primary and 2" (51mm) secondary mandrel-bent pipes for maximum flow.
  • Large 3" Outlet: 3" (76mm) collectors support high-horsepower engine configurations.
  • Broad Fitment Range: Suitable for original XR-XY Falcons and a wide variety of Ford engine swap models.
Product Specifications for PH4036 L/R
Feature Value Feature Value
Part # PH 4036 Outlet 3" (76mm)
Primary Pipe 1¾" (44mm) Secondary Pipe 2" (51mm)
P/Steering Yes Air Con Yes
Fitting Time 3½ Hrs Gasket N/A

Important Notes:

  • Head Type: This product will NOT fit standard Windsor heads. It requires the wider bolt pattern found on Spread Port / Dual Bolt Hole heads.
  • Engine Size: Will NOT fit 289 or 302 Windsor engines.
  • Transmission: Will NOT fit vehicles equipped with a C6 Transmission.
  • Engine Swaps: Fits XA-XF Falcons and ZF-ZL Fairlanes with a 351 Windsor swap. Note: Column automatic models will require linkage modification for fitment.

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
Ford Falcon / Fairlane 1966 1972 Sedan / Coupe / Wagon XR, XT, XW, XY / ZA-ZD 351 Windsor (Spread Port) Manual & Automatic RWD
Ford Falcon / Fairlane 1972 1993 Sedan / Ute / Wagon XA-XF / ZF-ZL (Swaps) 351 Windsor (Spread Port) 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: 89420173948

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S. Mason
San Leandro, US
★★★★★ 5
Nice shirt, great price
Size: Large, Color: Royal Blue
Very nice shirt. Has a soft, flowy (?) hand to it. Not starchy like a lot of oxford button-down collar shirts. Second one I’ve bought. Nice
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Reviewed in the United States on May 21, 2026
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Patrick Turner
Pawtucket, US
★★★★★ 5
Great shirts.
Size: X-Large, Color: Black
I have 10. These are great, stylish shirts especially for the price. I usually wear between size L-XL slim fit (Banana Republic). I’m 6’ 200 lbs medium athletic build and L fits perfectly. With a quick press, they do not wrinkle easily. I get plenty of compliments.
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Reviewed in the United States on April 24, 2026
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Kendall
San Leandro, US
★★★★★ 4
Runs large, not slim fit
Size: Medium, Color: Green
The shirt definitely runs large like all the other reviews say. I usually wear a large, but the medium fit much better. The shirt is definitely not slim fit though.
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Reviewed in the United States on April 3, 2026
R
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Richmonddiva
Bozeman, US
★★★★★ 5
Great fit and look
Size: Medium, Color: Grey
Husband loved it! Great fit and he said it was comfortable. Can be worn untucked or tucked in pants. He wore it with jeans and a blazer untucked for a graduation party and looked perfect for the occasion.
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Reviewed in the United States on May 11, 2026
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Amazon Customer
Massapequa, US
★★★★★ 3
Tight in Chest for Broad Chested Men
Size: XX-Large, Color: Green
Quality is okay but not great. The biggest problem was the size. It was too tight for my broad chest. Ended up giving it away. I bought some similar shirts from a different supplier that I didn’t have issues with.
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Reviewed in the United States on April 16, 2026

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