Edelbrock Features: Fully Race-Oriented Designed Cast With Extra Material In The Ports And Chambers Raised Exhaust Ports To Improve Flow Efficiency Supplied w/Reamed/Semi Finished Valve Stems Guides HIP Processed For Improved Quality And Strength Works With Existing Edelbrock NASCAR SB2 Manifold For Race Use Only Height: 8.18 Width: 10.44 Length: 24.75 Weight: 50.00 lbs