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1999 Engine Coolant Crossovers

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Summit Racing™ Pro LS Steam Line Kits SUM-220959X

Made in the USA Summit Racing™ Pro LS Steam Line Kits SUM-220959X

Summit Racing™ Pro LS Steam Line Kits SUM-220959X

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

Not Yet Reviewed

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Holley LS Steam Vent Kits 26-550

Holley LS Steam Vent Kits 26-550

Holley LS Steam Vent Kits 26-550

Engine Coolant Crossovers, LS Steam Vent Kits, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: HLY-26-550

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Earl's Performance LS Steam Vent Kits LS0041ERL

Earl's Performance LS Steam Vent Kits LS0041ERL

Earl's Performance LS Steam Vent Kits LS0041ERL

Engine Coolant Crossovers, LS Steam Vent Kits, Aluminum, Black Anodized, Chevy, LS, Kit

Part Number: EAR-LS0041ERL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Chevrolet Performance Engine Coolant Crossover Pipes 12694769

Chevrolet Performance Engine Coolant Crossover Pipes 12694769

Chevrolet Performance Engine Coolant Crossover Pipes 12694769

Engine Coolant Crossover Pipe, Stainless Steel, Natural, O-rings, Chevy, LS, Kit

Part Number: NAL-12694769

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Summit Racing™ Coolant Steam Port Crossover Kits SUM-220961

Summit Racing™ Coolant Steam Port Crossover Kits SUM-220961

Summit Racing™ Coolant Steam Port Crossover Kits SUM-220961

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

Part Number: SUM-220961

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ICT Billet Coolant Crossover Kits 551675

ICT Billet Coolant Crossover Kits 551675

ICT Billet Coolant Crossover Kits 551675

Coolant Crossover, Billet Aluminum, LS Throttle Body Bypass Hose Kit Coolant Steam Crossover, LS, Kit

Part Number: ICB-551675

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB601

Made in the USA Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB601

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB601

Engine Steam Line Plumbing Kit, Four Corner, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-306SB601

4.08 out of 5 stars ( 50 )

Estimated Ship Date: Today

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ICT Billet Coolant Crossover Kits 551694H

ICT Billet Coolant Crossover Kits 551694H

ICT Billet Coolant Crossover Kits 551694H

Coolant Crossover, Billet Aluminum, LS Throttle Body Bypass Hose Kit Coolant Steam Crossover, LS1, LSX, Kit

Part Number: ICB-551694H

4.63 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Holley LS Steam Vent Kits 26-552

Holley LS Steam Vent Kits 26-552

Holley LS Steam Vent Kits 26-552

Engine Coolant Crossover, LS Steam Vent, Aluminum, Black Anodized, Chevy, Small Block, Kit

Part Number: HLY-26-552

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Summit Racing™ Pro LS Steam Line Kits SUM-220952

Summit Racing™ Pro LS Steam Line Kits SUM-220952

Summit Racing™ Pro LS Steam Line Kits SUM-220952

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: Today

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Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0601

Made in the USA Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0601

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0601

Engine Steam Line Plumbing Kit, Four Corner, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-306S0601

4.36 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB600

Made in the USA Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB600

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306SB600

Engine Steam Line Plumbing Kit, Front Kit Only, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-306SB600

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ICT Billet Coolant Crossover Kits 551692

ICT Billet Coolant Crossover Kits 551692

ICT Billet Coolant Crossover Kits 551692

Engine Coolant Crossovers, Billet Aluminum, Natural, Hoses, Bypasses Throttle Body Coolant Line, Chevy, Small Block LS, Kit

Part Number: ICB-551692

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Earl's Performance LS Steam Vent Kits LS0036ERL

Earl's Performance LS Steam Vent Kits LS0036ERL

Earl's Performance LS Steam Vent Kits LS0036ERL

Engine Steam Tube Kit, Four Corner, Stainless Steel Tubing, Aluminum, Black Anodized, Chevrolet, Small Block LS, Kit

Part Number: EAR-LS0036ERL

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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This product may not be eligible for select promotional offers

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0600

Made in the USA Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0600

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-306S0600

Engine Steam Line Plumbing Kit, Front Kit Only, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-306S0600

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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ICT Billet Coolant Crossover Kits 551679

Made in the USA ICT Billet Coolant Crossover Kits 551679

ICT Billet Coolant Crossover Kits 551679

Engine Coolant Crossovers, Billet Aluminum, Natural, Chevy, Small Block LS, Kit

Part Number: ICB-551679

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley LS Steam Vent Kits 26-553

Holley LS Steam Vent Kits 26-553

Holley LS Steam Vent Kits 26-553

Coolant Crossovers, LS Steam Vent, Aluminum, Black Fitting, Nylon Braided Hose, Black, 4 AN Size, Kit

Part Number: HLY-26-553

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

This product may not be eligible for select promotional offers

Need It Sooner? We recommend these similar substitute parts:

Holley LS Steam Vent Kits 26-550

Holley LS Steam Vent Kits 26-550

5 out of 5 stars ( 1 )

Estimated Ship Date: Today

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ICT Billet Coolant Crossover Kits 551694

Made in the USA ICT Billet Coolant Crossover Kits 551694

ICT Billet Coolant Crossover Kits 551694

Engine Coolant Crossovers, Billet Aluminum, Natural, 1/8 in. NPT Threaded Adapters, Chevy, Small Block LS, Kit

Part Number: ICB-551694

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600601

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600601

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600601

Engine Steam Line Plumbing Kit, Four Corner Kit, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-30600601

2.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Earl's Performance LS Steam Vent Kits LS0016ERL

Earl's Performance LS Steam Vent Kits LS0016ERL

Earl's Performance LS Steam Vent Kits LS0016ERL

Engine Coolant Crossovers, LS Steam Vent Kits, Steel, Zinc Finish, Chevy, Small Block LS, Kit

Part Number: EAR-LS0016ERL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

This product may not be eligible for select promotional offers

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600600

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600600

Trick Flow® Engine Steam Line Plumbing Kits for GM LS TFS-30600600

Engine Steam Line Plumbing Kit, Front Kit, Aluminum, Black Anodized, Chevy, Small Block LS, Kit

Part Number: TFS-30600600

Not Yet Reviewed

Estimated Ship Date: Today

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Summit Racing Speedcard. Synchrony Car Care.

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