Offenhauser 5921 Tunnel Ram Base

Offenhauser 5921 Tunnel Ram Base for Chevrolet 283-400. Base only. Use 5921 G for gasket in between 5921 base & 5922 top.

Fits the following tops:

• 5922 Single Quad top for Holley or T.Q. carbs
• 5923 Dual Quad top for Holley carbs.
• 5930 Single Quad top only to accept Holley 4500
• 5978 3 Weber carb set up
• 5988 Dual Quad top for T.Q. carbs only

If you do not see your top listed for purchase, please email or call us.