Ford F100 Bronco 4WD 1974-1979 302 351 Cleveland V8 Wildcat Exhaust Headers WILD048

Wildcat WILD048 headers (extractors) are designed for selected Ford F100 and Bronco 4WD models up to 1979 fitted with 302ci (4.9L) or 351ci (5.8L) Cleveland V8 engines using 2V cylinder heads.

WILD048 features a Tri-Y design using 44mm primary pipes, 51mm secondary pipes and a 57mm outlet, providing a performance-oriented replacement for the restrictive original exhaust manifolds.

4WD MODELS – 302 / 351 CLEVELAND V8 WITH 2V CYLINDER HEADS ONLY.

IMPORTANT: Some models may require modification to the header outlets due to model changes.

Please check availability and current lead time before ordering.

Key Features

• Suits selected Ford F100 and Bronco 4WD applications up to 1979
• Suits 302ci (4.9L) Cleveland V8
• Suits 351ci (5.8L) Cleveland V8
• 2V cylinder heads only
• Tri-Y header design
• 44mm (1¾") primary pipes
• 51mm (2") secondary pipes
• 57mm (2¼") outlet
• Suits manual and automatic transmission applications
• Suits air-conditioning
• Suits power steering
• Australian Made

Construction

Wildcat WILD048 headers are manufactured from mild steel and feature a Tri-Y configuration with 44mm primary pipes feeding into 51mm secondary pipes and a 57mm outlet.

Wildcat headers are manufactured in Australia by the same Australian manufacturer responsible for Genie headers.

Additional Options

Please contact Best Mufflers for current availability and advice regarding compatible exhaust components or alternative header applications for your Ford F100 or Bronco.

Vehicle Fitment

• Make: Ford
• Models: F100 / Bronco
• Drive: 4WD
• Year Range: Up to 1979
• Engine: 302ci / 4.9L Cleveland V8
• Engine: 351ci / 5.8L Cleveland V8
• Cylinder Heads: 2V only
• Transmission: Manual or automatic
• Air Conditioning: Compatible
• Power Steering: Compatible

Australian F100 Note: The locally sourced 302 Cleveland V8 was introduced into the Australian F-Series range during 1974. The 351 Cleveland was subsequently offered in later models, with engine availability varying according to model, year and drivetrain configuration.

Header Specifications

• Part Number: WILD048
• Genie Reference: GEN450E
• Design: Tri-Y
• Primary Pipes: 1¾" (approximately 44mm)
• Secondary Pipes: 2" (approximately 51mm)
• Outlet: 2¼" (approximately 57mm)
• Construction: Mild steel
• Manufacture: Australian Made

Fitment Notes

WILD048 is the 4WD application and suits Cleveland 2V cylinder heads only. Confirm the engine, cylinder-head configuration and drivetrain before ordering.

Some models may require modification to the header outlets due to gearbox cross member changes. This is specifically noted in the Wildcat/Genie application catalogue, so these headers should not be described as an unconditional direct-fit installation.

Because these vehicles are now several decades old and commonly modified, check the engine, cylinder heads, transmission, chassis, steering, suspension and existing exhaust configuration before ordering.

What's Included

Wildcat WILD048 header assembly. Exhaust manifold/header gaskets are not included according to the current supplier listing. Other installation components should not be assumed to be included unless specifically shown or stated with the product.

Recommended With

RBG047S – gasket reference specified in the Wildcat/Genie application catalogue for WILD048.

Why Good Headers & Exhaust Systems Matter

A 302ci (4.9L) Cleveland V8 theoretically draws approximately 9,800 litres of intake air per minute at 4,000 rpm at 100% volumetric efficiency, while a 351ci (5.8L) Cleveland V8 theoretically draws approximately 11,600 litres per minute.

Once combustion has taken place, the hot exhaust gases occupy substantially more volume as they travel through the exhaust system. Using an illustrative exhaust temperature of approximately 600°C, this represents roughly 29,400 litres per minute for the 302 and 34,800 litres per minute for the 351.

A well-designed header and exhaust system helps manage this high gas flow efficiently, reducing restriction and improving exhaust scavenging, torque, throttle response and engine performance.

Installation Tips

Professional installation is recommended. Trial-fit the headers before completing the exhaust connection and carefully check clearance around the X-member, chassis, steering, transmission, suspension and drivetrain.

Because the manufacturer specifically warns that some models may require header outlet modifications, establish the required clearance before making permanent exhaust connections.

Lubricate threaded fasteners with WD-40 or a similar penetrating lubricant before removal to assist with easier removal and installation. After installation and several heat cycles, inspect the system for exhaust leaks and recheck accessible fasteners where appropriate.

Warranty & Compliance

Installation must maintain adequate clearance from steering, suspension, transmission, chassis, fuel and brake components. Any chassis or crossmember modifications must comply with applicable Australian state or territory vehicle modification requirements.

FAQ

Is this product currently available?
Availability and lead times can vary. Please check availability and current lead time before ordering.

Does WILD048 suit the Ford F100 4WD?
Yes. WILD048 is specifically listed for selected F100 4WD models up to 1979 fitted with a 302 or 351 Cleveland V8 with 2V cylinder heads.

Does WILD048 suit the Ford Bronco?
Yes. The Wildcat/Genie catalogue includes Ford Bronco 4WD in the WILD048 application.

Will WILD048 fit Cleveland 4V cylinder heads?
No. The manufacturer specifies 2V cylinder heads only.

Does WILD048 suit manual and automatic transmissions?
Yes. The Wildcat/Genie catalogue lists both manual and automatic compatibility.

Will WILD048 fit vehicles with air conditioning and power steering?
Yes. Both air conditioning and power steering are listed as compatible.

Are modifications required?
Possibly. Wildcat specifically notes that some models may require modification to header outlets due to gearbox X-member changes. Vehicle configuration and clearance should be checked before installation.

What gasket suits WILD048?
Use "DSF027" gaskets

Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.

How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.

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.

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