Summit Racing Engine Coolant Crossovers

LS Coolant Steam Crossover Kit, Four Corner LS Steam Vent Kit, Stainless Steel Hardlines with Black Anodized Steam Port Adapters, Chevy, LS, Kit

Part Number: SUM-220959X

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Coolant Crossover, Billet Aluminum, -4AN Braided Stainless Hose, LS Throttle Body Bypass Hose Kit Coolant Steam Crossover, W/ Vent, LS1, LSX, Kit

Part Number: SUM-220960

3.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

LS Coolant Steam Crossover Kit 1, Billet Aluminum, -4AN Braided Stainless Hose, Bypass Hose Kit, W/ Vent Front, No Vent Rear, LS1, LSX, Kit

Part Number: SUM-220962

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Coolant Crossover, Billet Aluminum, -4AN Braided Stainless Hose, LS Throttle Body Bypass Hose Kit, NO Vent, Rear balance Crossover, Kit

Part Number: SUM-220961

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Coolant Crossover, Billet Black Aluminum, -4AN Braided Stainles Hose, LS Throttle Body Bypass Hose Kit Coolant Steam Crossover, W/Vent, LS1, LSX, Kit

Part Number: SUM-220960-B

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

LS Coolant Steam Crossover Kit 2, Billet Aluminum, -4AN Braided Stainless Hose, Bypass Hose Kit, W/ Vent Front, Billet Plugs Rear, LS1, LSX, Kit

Part Number: SUM-220963

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Coolant Crossover, Billet Black Aluminum, -4AN Braided Stainless Hose, LS Throttle Body Bypass Hose Kit, NO Vent, Rear balance Crossover, Kit

Part Number: SUM-220961-B

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Steam Line Plumbing Kit, Engine Coolant Crossover, Aluminum, Black Anodized, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-220952

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air