C3 1973-1975 Corvette Fan Shroud Extension - 350 Small Block

Restore proper cooling system performance with this Fan Shroud Extension for 197-1975 Chevrolet Corvette models equipped with a 350 Small Block engine. This import reproduction is designed to attach to the factory fan shroud, extending it to correctly position the cooling fan within the shroud opening for maximum airflow through the radiator. Engineered as a direct replacement for the original GM extension, it is ideal for replacing cracked, warped, or missing components during restoration or cooling system repairs. This extension replaces GM Part #331870 and is designed for use with compatible fan shrouds Part #42576 or #51798.

Manufactured using durable injectio-molded construction to meet or exceed OEM specifications, this extension delivers an accurate fit and dependable lon-term performance. Proper fan shroud depth is essential for efficient airflow, especially during lo-speed driving and idle conditions, making this component an important part of maintaining proper engine operating temperatures.

Product Details

• Fits 197-1975 Chevrolet Corvette (C3)
• Designed for 350 Small Block engines
• Import reproduction
• Direct replacement fan shroud extension
• Replaces GM Part #331870
• For use with Fan Shroud Part #42576 or #51798
• Durable injectio-molded construction
• Engineered to meet or exceed OEM specifications
• Sold individually

Features

• Factor-style fit and appearance
• Precisio-molded for accurate fitment
• Restores proper fan shroud depth
• Direct replacement for the original extension
• Ideal for restoration and cooling system repairs

Benefits

• Improves radiator airflow and cooling efficiency
• Helps reduce the risk of engine overheating
• Restores proper fa-t-shroud positioning
• Replaces cracked, damaged, or missing original extensions
• Maintains an OE-style appearance in the engine compartment

Fitment

• 1973 Chevrolet Corvette
• 1974 Chevrolet Corvette
• 1975 Chevrolet Corvette