Heating and Cooling› Thermostats, Housings and Fillers

BLUEPRINT ENGINES

GM LS3 COMPATIBLE WATER NECK, ALUMI

$31.62

SKU: B05J BPPLS345

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The BluePrint Engines GM LS3 Compatible Water Neck is a thermostat housing engineered for swap applications requiring a downward-angled radiator hose. Crafted from durable aluminum with a natural finish, it features a fixed 75-degree water neck angle for streamlined coolant flow. This housing accepts a factory-style LS3 thermostat and includes mounting hardware for easy installation.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBLUEPRINT ENGINES
Part NumberB05J BPPLS345

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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