CHEVROLET Chevy small block Gen III/IV (LS-based engines) Thermostats, Housings & Fillers

Thermostat Housing - Chevy LS Straight - 1-1/2" Hose - Red

Part Number: CVS-TSH5SR

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Drop Ship
• Special Order

Water Neck, 90 degree, -16 AN, Billet Aluminum, Red Anodized, Buick, Chevy, GMC, Pontiac, Small Block LS, Each

Part Number: CVS-TSH5AR

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat Housing - Chevy LS Straight - 16AN - Clear

Part Number: CVS-TSH5SACL

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat Housing - Chevy LS Straight - 16AN - Red

Part Number: CVS-TSH5SAR

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Drop Ship
• Special Order

Water Neck, Replacement, Chevy, GMC, Each

Part Number: FSS-85169

Not Yet Reviewed

Estimated Ship Date: Nov 28, 2025 if ordered today

• Special Order

Water Neck, Aluminum, Blue Anodized, O-Ring, Straight, 1.250 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-201

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Special Order

Water Neck, Aluminum, Red Anodized, O-Ring, Straight, 1.250 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-203

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Special Order

Water Neck, Aluminum, Blue Anodized, O-Ring, Straight, 1.500 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-241

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

• Drop Ship
• Special Order

Water Neck, Aluminum, Red Anodized, O-Ring, Straight, 1.500 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-243

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

• Drop Ship
• Special Order

Thermostat Housing CHEVY 350 LS1 THERMOSTAT HOUSING #20AN CONNECTION

Part Number: CSI-911LS1AN20BK

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Clear Anodized, 80 Degree, Chevy, LS, Each

Part Number: EMS-MS106-90CA

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Red Anodized, Straight Up, Chevy LSX Engines, Each

Part Number: MEZ-WN0039R

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

LS-X WATER MANIFOLD NATURAL

Part Number: MEZ-WAM119N

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

LS-X WATER MANIFOLD POLISHED

Part Number: MEZ-WAM119U

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Blue Anodized, 15 Degree, Chevy LSX Engines, Each

Part Number: MEZ-WN0019B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Chrome Plated, 15 Degree, Chevy LSX Engines, Each

Part Number: MEZ-WN0019C

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Low-Profile, Red, 1.500 in. Inlet, 15 degree, Chevy LSX Engines, Each

Part Number: MEZ-WN0019R

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

Water Neck, Billet Aluminum, Blue Anodized, Straight Up, Chevy LSX Engines, Each

Part Number: MEZ-WN0039B

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Water Neck, Billet Aluminum, Chrome Plated, Straight Up, Chevy LSX Engines, Each

Part Number: MEZ-WN0039C

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Water Neck, Billet Aluminum, Polished, Straight Up, Chevy LSX Engines, Each

Part Number: MEZ-WN0039U

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

LS Water Pump To SBC Thermostat Housing Adapter Water Neck LS1

Part Number: ICB-551448

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

LSX STRAIGHT WATER NECK W/ THERMOSTAT

Part Number: TSN-HC8938KT

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

Water Neck and Thermostat Housing, 45 Degree, Swivel, Black, O-Ring Style, Includes Hardware, Chevy, LS, Each

Part Number: TSN-HC8937BK

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

LSX STRAIGHT WATER NECK

Part Number: TSN-HC8938C

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

Water Neck and Thermostat Housing, 45 Degree, Swivel, Chrome, O-Ring Style, Includes Hardware, Chevy, LS, Each

Part Number: TSN-HC8937C

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order