Holley Single-Plane Race Square Bore Single Plane Intake Manifold - LS1 / LS2 / LS6 - GM LS-Series Breather Tank these 10 degree retainers are

these 10 degree retainers are designed specifically for engines using our 983 Ovate Wire valve springs

Standard mount kit has 2" of adjustment

040" 4130 Chromoly

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Holley Single-Plane Race Square Bore Single Plane Intake Manifold - LS1 / LS2 / LS6 - GM LS-Series Breather Tank these 10 degree retainers areEngine Intake Manifold Lighter than other split race intakes Split feature making porting efforts easy! 33 to 50% the price of other split race intakes Captured O ring seals at head ports and split Vacuum Port options include (2) 1 8, (1) 1 4, and (1) 3 8, NPT ports at the carb flange Billet Fuel Rails and rail mounting hardware included. Product Description: Intake Manifold Single Plane Race Square Bore Single Plane Aluminum Natural LS1 LS2 LS6 GM LS