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

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.

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

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