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Replacement Parts for HLY-300-255

Holley EFI LS Single Plane Split-Design Race Intake Manifolds 300-255

5 out of 5 stars ( 4 )

Part Number: HLY-300-255

Estimated Ship Date from OH, NV, TX: Monday 10/26/2026

$749.95

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O-Rings, Replacement, Rubber, for Delphi, Holley Top-Fed Injectors, E85 Compatible, 16-pieces, Set

Part Number: HLY-534-104

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Gaskets, Replacement, Port Flange, O-ring, Size 2-234, Intake Model 300-255, 300-256, 300-290, 300-291, 8-piece, Set

Part Number: HLY-508-28

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

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