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Cal Custom
Marketplace
Online OnlyNot sold in store
Cal Custom

Cal Custom Holden 253 304 308 Swivel Neck Thermostat Housing Black Billet Alloy

I/N: 1149929

$137.65

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Marketplace - Online Only

Items sold and delivered by Australian Auto Accessories. This item is not available in-store or for click & collect.

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  • Engine configuration compatibility: this thermostat housing/water neck is specifically designed for classic pre-efi holden 253, 304, and 308 (4.2l–5.0l) v8 engines produced between 1969 and 1988
  • Flexible hose positioning: it incorporates a full 360-degree swivel mechanism, allowing builders to freely rotate and lock the water outlet to any angle for optimised radiator hose routing
  • Leak-proof billet design: cnc-machined from high-quality billet alloy with a clean black anodised finish, the unit features a heavy-duty o-ring that completely replaces the need for traditional paper gaskets, and includes polished stainless steel hex head bolts
The cal custom aftermarket swivel-neck thermostat housing is tailored to fit holden 253, 304, and 308 naturally aspirated (pre-efi) engines spanning from 1969 to 1988. This component resolves tight engine bay clearances by offering a full 360-degree rotating water outlet. Machined from billet aluminum and treated with a black anodised finish, the housing is designed without built-in heater hose or bypass outlets to ensure a clean, uncluttered profile. For a secure, trouble-free installation, the assembly relies on a durable integrated o-ring instead of standard gaskets and ships ready to install with a set of polished stainless steel hex head bolts.