CHEVROLET Chevy small block Gen III/IV (LS-based engines) Billet Specialties Water Necks and Thermostat Housings

Water Neck and Thermostat Housing, Straight, Aluminum, Black Anodized, GM LS, Each

Part Number: BSP-BLK90134

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/22/2025

Water Neck, Billet Aluminum, Black Anodized, Straight Up, -16 AN Male Threads, Chevy, LS, Each

Part Number: BSP-BLK90900

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

Water Neck, Billet Aluminum, Black Anodized, Straight Up, -20 AN Male Threads, Chevy, LS, Each

Part Number: BSP-BLK90920

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

Water Neck, Aluminum, O-ring, Polished, 15 Degree, Each

Part Number: BSP-90334

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

Thermostat Housing, Straight, Aluminum, Black Anodized, Chevy, LS, Each

Part Number: BSP-BLK90135

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

Water Neck, Aluminum, Black Anodized, O-ring, 15 Degree, Each

Part Number: BSP-BLK90334

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Water Neck, Billet Aluminum, Natural, Straight Up, -16 AN Male Threads, Chevy, LS, Each

Part Number: BSP-90900

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

Water Neck, Billet Aluminum, Natural, Straight Up, -20 AN Male Threads, Chevy, LS, Each

Part Number: BSP-90920

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

Water Neck, Aluminum, O-ring, Polished, 0 Degree, Each

Part Number: BSP-90134

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/22/2025