LS Engine Swap Headers

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LS Engine Swap Headers are purpose-built exhaust manifolds engineered for popular LS engine conversions across a range of classic Australian and 4WD platforms. Whether you're dropp ing an LS into a Holden Commodore, classic HQ-WB, Torana, Nissan Patrol or LandCruiser, these headers are precision-formed to clear the unique fitment challenges of each specific donor chassis — firewalls, steering components, chassis rails and transmission configurations included. Available for both manual and automatic transmission setups across most applications, and suits LS1 (Gen III), LS2 and LS3 (Gen IV) engines including 5.7, 6.0 and 6.2 litre variants. Key Features Purpose-built for specific LS engine swap applications across multiple platforms Suits LS1 (Gen III), LS2 and LS3 (Gen IV) — 5.7L, 6.0L and 6.2L Manual and automatic transmission compatibility across most applications Engineered to clear power steering, air conditioning and chassis-specific obstacles 3″ (76mm) collector outlet across the range for maximum exhaust flow Tuned and Tri-Y header designs available depending on application Select your specific vehicle and transmission from the variant menu Typical Uses Racecraft LS Swap Headers are commonly used for: LS engine conversions into VB–VS Commodore (VB-VC-VH-VK-VL-VN-VP-VR-VS) LS engine conversions into HQ–WB Holden (HQ-HJ-HX-HZ-WB) LS engine conversions into LH–LX Torana LS engine conversions into Nissan Patrol GQ–GU (manual and auto variants) LS engine conversions into 80–105 Series LandCruiser (GM auto and Toyota 5 speed manual) Street machines, classic restorations and serious 4WD performance builds Important Fitment Notes VB–VK Commodore: Suits manual steering rack and power steering K-frame only Commodore fitment: Tuff Mount engine mounts, crossmember and starter motor relocation kit recommended for guaranteed fitment Nissan Patrol GQ–GU Auto: Available for GM 6L80E–4L60E transmission or Nissan RE4 Auto using Marks 4WD adapter — select correct variant LandCruiser 80–105 Series Auto: Y-piece will only fit factory auto vehicles — select Toyota 5 speed manual variant if applicable LH–LX Torana: Fits with starter motor in standard position Specifications Application: LS engine swap specific — select vehicle and transmission from variant menu Compatible Engines: LS1 (Gen III), LS2, LS3 (Gen IV) — 5.7L, 6.0L, 6.2L Collector Outlet: 3″ (76mm) Primary Pipe: 1¾″ (48mm) — HQ-WB / 1¾″ (44mm) — Commodore Secondary Pipe: 2″ (51mm) — Commodore Transmission: Manual and Automatic (application dependent — select variant) Fitting Time: 2–5 hours depending on application Construction: Precision-formed mandrel-bent headers Show more