Advance Headers | Mild Steel Engine Swap Extractors | Holden Torana LH-LX LS V8 Conversion | A415
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Advance Headers | Mild Steel Engine Swap Extractors | Holden Torana...
Description
Description
Advance Headers High-Performance Mild Steel Engine Swap Extractors for Holden Torana LH to LX LS Series V8 Conversions
The Advance Headers Conversion Exhaust Extractors (A415) are high-flow, heavy-duty tubular manifolds custom-engineered specifically for classic Holden LH and LX Torana sedan and hatchback platforms undergoing a modern General Motors LS V8 engine swap. Purpose-built to clear the notoriously tight engine bay packaging limitations of the Torana chassis while accommodating the high-flowing exhaust port architecture of Gen III and Gen IV LS engines (such as 5.7L LS1, 6.0L L98/L77, and 6.2L LS3 donors), this premium swap header features high-velocity 1-¾" primary pipes stepping down smoothly into 2" secondaries. By maximizing exhaust gas scavenging dynamics and completely bypassing restrictive factory manifolds, it unlocks elite performance, sharper throttle action, and a ferocious modern muscle car roar.
PRODUCT CONTENTS:
- 1 x Heavy-Duty Mild Steel Left-Hand LS Conversion Extractor Bank Assembly
- 1 x Heavy-Duty Mild Steel Right-Hand LS Conversion Extractor Bank Assembly
Key Features:
- Engineered specifically to facilitate the drop-in installation of GM Gen III & Gen IV LS-based V8 blocks into classic LH and LX Torana engine bays cleanly
- Maintains full compatibility with the starter motor mounted in its standard, factory-intended passenger-side block position—eliminating the need for expensive starter relocation kits
- High-flow design featuring 1-¾" primary runners transitioning into 2" secondary piping pathways to deliver optimal scavenging performance on modified, cammed, or high-RPM street machines
- Tuned mandrel-bent pathways eliminate tight bends to achieve completely smooth, uniform internal flow geometry and minimize under-bonnet heat traps
- Thick, precision laser-cut cylinder head flanges maintain a flat, ultra-stable mating footprint to permanently guard against thermal warping, face distortion, and high-pressure exhaust gas leaks
Specifications:
- Brand: Advance Headers
- Part Number: A415
- Material: Mild Steel (Standard Finish)
- Engine Suitability: GM Holden LS V8 Small Block Engines (5.7L, 6.0L, 6.2L Gen 3 / Gen 4 Blocks)
- Primary Pipe Diameter: 1-¾" (44mm)
- Secondary Pipe Diameter: 2" (51mm)
- Starter Position Compatibility: Standard OEM Side Mounting Layout
- Component Type: Engine Swap Performance Exhaust Extractors / Headers
- Estimated Fitting Time: 2 Hours
- Welding Required: No (Direct Bolt-On Configuration to Cylinder Heads)
⚠️ Crucial Conversion Clearance & Steering Geometry Warnings:
1. Torana Engine Bay Constraints: This product (Part No. A415) is shaped explicitly around standard aftermarket conversion engine mount kits and oil pans optimized for LH-LX crossmembers. Due to variants across engine placement brackets and steering shaft configurations (such as manual steering boxes vs. customized rack and pinion modifications), clearances should be carefully measured prior to finalizing installation.
2. UC Torana Clearance Check: These headers are specifically mapped around the front apron profiles and inner structures of the LH and LX model generations. Clearance modifications may be needed if attempting fitment inside the subsequent UC series engine bays.
Please Note: Due to the variances across engine swap bracket brands, steering linkages, and custom low-profile oil pans, professional installation by an exhaust specialist or custom street-machine workshop is highly recommended.
Important Information
- The image shown may not reflect the actual product design.
- Ensure your vehicle details match the application guide below before purchasing.
Vehicle Applications for A415 Performance Holden Torana LS Engine Swaps
| Make | Model | Year Range Spec | Body Type | Chassis Series | Engine Conversion Details | Fitting Time | Drivetrain / Fitment Notes |
|---|---|---|---|---|---|---|---|
| Holden | Torana / S / SL / SLR / SLR 5000 / SS Hatchback | 1974 – 1978 (Chassis Range) | 4-Door Sedan / 3-Door Hatchback Coupe | LH / LX Series Only | GM LS V8 Conversion (LS1, LS2, L98, L77, LS3 Block Swaps) | 2.0 Hours | RWD | Mandrel-bent upgrade conversion routing mapped to snake precisely past Torana K-frames, steering shafts, and firewall lines. Fits with the starter motor in its standard OEM position. |
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