SKU: 89420173948

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

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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:
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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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Ear buds
Lowell, US
★★★★★ 5
Durability
Color: Green, Pattern Name: Hammerhead Shark
I have a lab puppy and she LOVES to chew and tear anything that she can up. I bought this being a little bit hesitant by some of the reviews but I will say she has not torn out the squeaker yet,. And it’s pretty loud too (it’s been almost two weeks) and the plastic is pretty durable. The only negative I have to say is the plastic does it sharp ( I’ve almost cut myself on it) but that doesn’t seem to affect her. So overall I’d say this is a great product if your dog needs something durable yet chewable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
N
Verified Purchase
Nevermore Lane
Birmingham, US
★★★★★ 5
A Huge Hit in My Bully Breed House!
Color: Green, Pattern Name: Hammerhead Shark
I have a house full of bully breeds, and this hammerhead shark toy is by far one of their favorites. I’ve actually bought a few of them so there are extras around the house — otherwise they’d all be fighting over the same one! That alone tells you how much they love it. The shape makes it easy for them to grab, chew, and toss around, and the squeaker keeps them interested without being obnoxiously loud. What really impressed me is the durability. My dogs are serious chewers, and we’ve had these for a while now. They’re still going strong, which is saying a lot in this house. The combination of rubber and nylon seems to hold up really well to heavy chewing. The bacon scent definitely helps keep their attention, and I like that I can add a little peanut butter for extra enrichment. It keeps them busy and off my furniture — always a win. If you have strong chewers, especially bully breeds, this one is absolutely worth picking up. Durable, fun, and clearly dog-approved in this house.
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Reviewed in the United States on March 4, 2026
C
Verified Purchase
Cindi C
Massapequa, US
★★★★★ 4
Great for puppies
Color: Green, Pattern Name: Hammerhead Shark
Great for a teething puppy but very loud when it hits the floor. It is truly indestructible!
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Reviewed in the United States on May 27, 2026
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Alan W.
Belleville, US
★★★★★ 5
Great chew toy!
Color: Green, Pattern Name: Hammerhead Shark
Our dogs love them! I have three of the sharks to help them share with each other! LOL Been crewed on and still look good, long lasting and perfect size for our Golden and Yellow Lab.
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Reviewed in the United States on May 22, 2026
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Verified Purchase
Jessenia Hernandez
Dallas, US
★★★★★ 5
Finally a Toy My Aggressive Chewer Can’t Destroy
Color: Green, Pattern Name: Hammerhead Shark
My dog is an extremely aggressive chewer, and finding toys that last more than a few minutes has always been a challenge. Most toys are destroyed almost immediately, but this one has held up incredibly well. He chews on it constantly, and it still hasn’t been destroyed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026

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