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Description
Pacemaker | 5.0L Windsor V8 Conversion | Falcon XK-XP Tuned Design | PH4025L/RPacemaker 5. 0L Windsor V8 Conversion Falcon XK XL XM XP PH4025L R Specifically engineered for Ford Falcon XK through XP models undergoing a 5. 0L Windsor V8 engine swap, these Pacemaker Tuned design headers deliver maximum performance and precise fitment. Designed to handle the increased exhaust flow of a V8 conversion, these headers provide the signature muscle car sound and power. Note: Designed to fit GT40P Heads, Column Change, and C4 Automatic
Pacemaker 5.0L Windsor V8 Conversion - Falcon XK-XL-XM-XP - PH4025L/R
Specifically engineered for Ford Falcon XK through XP models undergoing a 5.0L Windsor V8 engine swap, these Pacemaker Tuned design headers deliver maximum performance and precise fitment. Designed to handle the increased exhaust flow of a V8 conversion, these headers provide the signature muscle car sound and power. Note: Designed to fit GT40P Heads, Column Change, and C4 Automatic transmissions.
Features:
This product offers the following high-performance features:
- Tuned Design: Precision-engineered primary pipe lengths to optimize exhaust scavenging and engine breathability.
- GT40P Head Compatibility: Specifically designed to clear the unique spark plug angles of GT40P cylinder heads.
- Conversion Ready: Tailored for XK-XP engine bays using a high-torque starter with a top-mounted solenoid.
Product Specifications for PH4025L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 4025 | Gasket | DSF 3 |
| P/Steering | N/A | Primary Pipe | 1 ⅝" (41mm) |
| Air Con | N/A | Secondary Pipe | N/A |
| Oxy Sen | N/A | Outlet | 3" (76mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 3 Hrs | Design | Tuned |
Important Notes:
- Designed to fit GT40P Heads, Column Change, C4 Automatic.
- Requires high-torque starter with solenoid on top of the starter.
- We recommend using short 90 degree spark plug leads and short top spark plugs to give clearance to pipes.
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 PH4025L/R
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| FORD | ||||||||
| FORD | Falcon | 1960 | 1966 | Sedan / Ute / Wagon | XK-XL-XM-XP | 5.0L Windsor V8 | Engine Swap (V8 Conversion) | 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:
- 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
4.6 ★★★★★
Based on 1051 reviews
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Product Reviews
★★★★★ 5
Old school denim — not stretchy
Fit Type: Regular, Size: X-Small, Color: Authentic Medium Wash
Fabric used is old school denim — not the thin, stretchy stuff that pretty much everything called “denim” is today. It is 99% cotton (20% of which is recycled cotton) and 1% elastane, but I can’t feel any stretch in the fabric. It is a substantial, non-stretchy denim that gives the jacket really good structure. It has a higher end fit and look than the price would suggest.
I wanted a more fitted denim jacket so ordered an XS even though according to the size chart I need a small. (I have a 34.5” bust, 28” waist at 118 pounds 5’4”.) It still buttons over a t shirt or lightweight sweater with freedom for movement/without being tight, but if I wanted a roomy fit or the ability to wear a heavier sweater or sweatshirt underneath and still be able to comfortably button it I would have needed a small. The shoulders are cut broad — I have very broad shoulders and the XS surprisingly fits my shoulders well. This jacket may not be the greatest fit for you if you have very narrow shoulders, unless you are going for an oversized look.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
made well
Fit Type: Regular, Size: Large, Color: Iced Light Wash
I couldn't get this in my size (medium) so I ordered large. it's a little large in the shoulders, but it still looks good. it is a well made, substantial jacket. I love it!
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Reviewed in the United States on June 12, 2026
★★★★★ 5
good stretch
Size: 10 Long, Color: Dark Wash
Honestly, these are one of those surprisingly good basics—especially for the price.
The biggest standout is the stretch. They’re really comfortable and move with you, so they don’t have that stiff “jeans” feeling. They hug your body in a flattering way without feeling too tight or restrictive, which makes them easy to wear all day.
The mid-rise fit is also a sweet spot—not too low, not too high—so they’re super versatile with different tops.
What I liked:
Very stretchy and comfortable (almost feels like jeggings, but still looks like denim)
Flattering skinny fit through the legs
Easy everyday jeans—work, errands, going out
Great value for the price
What to know:
Material is on the thinner side (more comfort than “structured denim”)
They can lose shape slightly after a full day of wear
Not the most durable long-term compared to higher-end denim
Final thoughts:
These are perfect if you want cute, comfortable, affordable jeans you can throw on with anything. Not premium denim, but for everyday wear—they definitely get the job done and are worth having in your rotation.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Great
Size: 6, Color: Black
These were great, daughter wore them for her band concert. They fit nice, were soft, good quality and very black.
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Reviewed in the United States on June 5, 2026
★★★★★ 4
Size down.
Size: 8 Long, Color: Iced Blue Light Wash
They are high stretch so I would size down from your usual size. I have bought size 10 in their brand and noticed the two previous I've purchased before this one were loose. So when I purchased this one I sized down and they fit good to me. I got long so they are LONG. And the regular would probably fit at your ankle or above. The only reason why I didn’t give it 5 stars was bc I don’t feel it mid rise to me it feels like high rise but I don’t feel them uncomfortable and also THEY ARE NOT SKINNY JEANS. They are straight leg and a tad bit loose so if you want stretch and skinny jeans these are not the ones for you. I only bought them thinking they were like the picture but it’s false advertisement.
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Reviewed in the United States on February 28, 2026
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