Pacemaker Headers PH2560 – Chrysler Valiant 340 / 360 V8 J-Heads (VE, VF, VG, VH, VJ, VK, CL)

Pacemaker PH2560 headers (extractors) are high-performance headers designed to suit Chrysler Valiant VE, VF, VG, VH, VJ, VK and early CL models fitted with 340 or 360 Mopar small-block V8 engines using J-Heads and automatic transmissions.

Featuring large mandrel-bent 45mm primary pipes, 51mm secondary pipes and 76mm flanged outlets, PH2560 headers provide increased exhaust flow capacity for performance-oriented Mopar small-block engines. The header design helps improve exhaust scavenging, usable torque, throttle response and overall engine breathing, particularly when combined with a suitable performance exhaust system.

These headers are an excellent choice for classic Valiant restorations, performance street cars and modified Mopar small-block builds requiring increased exhaust flow capacity.

Key Features

• Designed for 340 and 360 Mopar small-block V8 engines fitted with J-Heads
• Large mandrel-bent 45mm primary pipes
• 51mm secondary pipes
• Large 76mm flanged outlets
• Performance header design to improve exhaust flow and scavenging
• Thick machined flanges for durability and reliable sealing
• Smooth collectors designed to improve exhaust gas transition and flow
• Pacemaker Blue heat-resistant coating rated to approximately 800°C

Construction

• High-quality mild steel tubing for strength and long service life
• Mandrel-bent pipework maintains consistent internal diameter through bends
• Precision welded construction for strength, alignment and accurate fitment
• Australian manufactured Pacemaker performance headers

Vehicle Fitment

• Make: Chrysler
• Model: Valiant
• Series: VE / VF / VG / VH / VJ / VK / Early CL
• Engine: 340 / 360 Mopar Small-Block V8
• Cylinder Heads: J-Heads
• Transmission: Automatic only

Additional Options

• Ceramic Coating: Available separately under product code "PHC40" for improved heat management and corrosion resistance
• Header Gasket: Recommended gasket set "DSF148" available separately

Fitment Notes

• Designed for Chrysler Valiant VE, VF, VG, VH, VJ, VK and early CL applications fitted with 340 or 360 V8 J-Head engines.
• J-Heads can be identified by a "J" cast/stamped on the raised pads above the spark plug holes.
• An oil filter relocation kit is required for installation.
• The relocation kit provides the necessary clearance between the oil filter assembly and header pipework.
• Designed for automatic transmission vehicles only.
• Does not suit manual transmission vehicles.
• Automatic column-shift linkages may require modification to provide adequate header clearance.
• CL models: PH2560 will not fit vehicles after engine number A221401167. Check the engine number before ordering.
• Protect painted surfaces and wrap the headers during trial fitting to prevent damage to the coating.
• Check starter motor, steering, transmission linkage, oil lines and surrounding component clearance during installation.
• Clearance can vary where non-original engine mounts, steering components, transmissions or other aftermarket components have been fitted.
• Older vehicles may have undergone engine, transmission, steering or suspension changes, so confirm the vehicle configuration before ordering.
• Professional installation is recommended.

What’s Included

• 1 x Pacemaker PH2560L left-hand header assembly
• 1 x Pacemaker PH2560R right-hand header assembly
• 12 x header bolts
• Tapered outlet cones with gaskets for exhaust connection

Recommended With

• Header Gasket Set: See product code "DSF148"
• Oil Filter Relocation Kit: Required for installation
• Matching intermediate pipes or exhaust system components may be available – contact us for advice

Why Good Headers & Exhaust Systems Matter

• At 5,000 rpm, the Chrysler 360ci V8 draws in approximately 12,500 litres of intake air per minute and expels around 37,500 litres of exhaust gas per minute at approximately 600°C.

Warranty & Compliance

• Backed by Pacemaker's 2-year manufacturer warranty
• Warranty applies according to Pacemaker's current manufacturer terms and conditions
• These are pre-1986 applications, so no modern emissions compliance statement is required
• Installation should provide adequate clearance from wiring, hoses, brake components, oil lines and other heat-sensitive parts

Frequently Asked Questions

What vehicles do these headers suit?
Pacemaker PH2560 headers are designed for Chrysler Valiant VE, VF, VG, VH, VJ, VK and early CL models fitted with 340 or 360 Mopar small-block V8 engines using J-Heads and automatic transmissions. Always confirm the cylinder head type and, for CL models, the engine number before ordering.

How do I identify J-Heads?
J-Heads can be identified by the letter "J" cast/stamped on the raised pads above the spark plug holes. Confirm your cylinder heads before ordering, particularly where the engine or heads have previously been changed.

Is an oil filter relocation kit required?
Yes. An oil filter relocation kit is required to provide adequate clearance between the PH2560 header pipework and the engine's oil filter assembly.

Do these headers fit manual transmission vehicles?
No. Pacemaker PH2560 headers are designed for automatic transmission vehicles only.

Will column-shift automatic vehicles require modification?
Possibly. Vehicles fitted with automatic column-shift linkages may require linkage modification to provide adequate clearance around the headers.

Do PH2560 headers fit all CL Valiants?
No. PH2560 headers will not fit CL models after engine number A221401167. Please check your engine number before ordering if you have a CL Valiant.

Are header gaskets included?
The cylinder-head-to-header gasket set is not included unless specifically selected or stated otherwise. The recommended gasket set for this application is DSF148.

Can these headers be ceramic coated?
Yes. Ceramic coating is available separately under product code PHC40.

Will I need to modify my existing exhaust system?
Depending on the exhaust system currently fitted, connection or fabrication work may be required between the PH2560 outlets and the existing exhaust system. Contact us if you need advice on suitable exhaust components.

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.

Customer Support

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