Chrysler Valiant AP5 AP6 VC VE VF 225 Slant 6 – Wildcat Headers WILD063

Wildcat  headers WILD063 (extractors) are designed for Chrysler Valiant AP5, AP6, VC, VE and VF models fitted with the 225ci (3.7L) Slant 6 engine.
TRI-Y design with 38mm primary pipes, 44mm secondary pipes and a 57mm outlet, these Australian-made headers are designed to improve exhaust flow, torque, throttle response and engine performance.

Please check availability and current lead time before ordering.

Key Features

• TRI-Y header design
• 38mm (1.50") primary pipes
• 44mm (1.75") secondary pipes
• 57mm (2.25") outlet
• Designed to improve exhaust flow and engine response
• Australian made

Construction

• Steel tubing with welded joints
• Heat-resistant painted finish rated to 600°C

Additional Options

• DSF005: Replacement header gasket, sold separately

Vehicle Fitment

• Chrysler Valiant AP5: 1963–1965
• Chrysler Valiant AP6: 1965–1966
• Chrysler Valiant VC: 1966–1967
• Chrysler Valiant VE: 1967–1969
• Chrysler Valiant VF: 1969–1970
• Engine: 225ci (approximately 3.7L) Slant 6 petrol engine

Header Specifications

• Brand: Wildcat Headers
• SKU: WILD063
• Design: TRI-Y
• Primary pipes: 38mm (1.50")
• Secondary pipes: 44mm (1.75")
• Outlet: 57mm (2.25")
• Finish: Heat-resistant paint rated to 600°C
• Manufacture: Australian made

Fitment Notes

• Check steering, engine mounts and exhaust system clearance
• Modified vehicles may require additional installation work
• Protect painted surfaces and wrap the headers during trial fitting
• Existing exhaust pipework may require modification to connect to the 51mm outlet
• DSF005 header gasket is available separately
• Please check availability and current lead time before ordering

What's Included

• 1 × Wildcat Headers SKU: WILD063

Recommended With

• DSF005: Slant 6 header gasket, sold separately
• Suitable 57mm or 63mm exhaust system

Why Good Headers and Exhaust Systems Matter

• On average, a 3.7L engine draws ~7,400 L of air per minute and expels ~22,200 L per minute at 4000rpm

Installation Tips

• Check the cylinder-head flange and exhaust mounting surfaces before installation
• Use a suitable new header gasket
• Trial fit the headers and check clearance around steering and engine components
• Protect the painted finish from scratches during installation
• Check all exhaust connections for leaks after installation

Warranty & Compliance

• Wildcat Headers 2-year warranty, subject to standard warranty terms
• Warranty applies to the supplied part only, subject to applicable Australian Consumer Law rights
• Check applicable noise and roadworthiness requirements before installation

Frequently Asked Questions

Which Chrysler Valiant models do WILD063 headers suit?
These headers are listed for compatible AP5, AP6, VC, VE and VF Chrysler Valiant models fitted with the 225ci Slant 6 engine. Confirm vehicle and engine details before ordering.

Are these headers suitable for Hemi 6 engines?
No. WILD063 is intended for the earlier Slant 6 engine, not the later Chrysler Hemi 6 engine family.

What size is the outlet?
The outlet is 57mm (2.25"). Modifications may be required to connect to an existing exhaust system.

Is the header gasket included?
No. The recommended DSF005 header gasket is sold separately.

Are Wildcat headers Australian made?
Yes. Wildcat headers are Australian made.

How long before my headers are available?
Please check availability and current lead time before ordering.

Can I collect my order?
Yes. Pickup must be pre-arranged. Please contact us before ordering to confirm availability and arrange collection.

How much is freight?
Freight varies depending on delivery location and stock availability. Please contact us before ordering if you require a freight quotation.

Do you ship to the USA?
Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States. Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.

Customer Support

For phone orders, advice, or part enquiries – contact us: