1964 C2 Water Pump - Idler Belt 327-365 HP 3845643 - OEM Number(s) (3845643)
Cloth-Wrapped GM Restoration V-Belt for High-Performance Small Block Applications
This GM Restoration Part belt is a faithful reproduction of GM Number 3845643, designed specifically for 1964 Corvettes equipped with the high-performance 327 cubic inch, 365 horsepower engine. It fits the water pump and idler pulley configuration and is built to factory blueprint specs with cloth-wrapped construction and indented factory-style markings.
Whether you're restoring for NCRS judging or simply maintaining original drive system function, this restoration-grade belt completes the visual and mechanical accuracy of your small-block engine bay.
Features
• Fits 1964 327 c.i. 365 HP engines with water pump/idler setup
• Authentic reproduction of GM #3845643
• Cloth-wrapped with indented white markings as original
• Includes Chevrolet part number, GM emblem, manufacturer codes, and sizing
• Officially Licensed GM Restoration Part
• Supplied in sleeved GM-style packaging
Dimensions and Weight
• Application: Water Pump / Idler
• Engine Fitment: 327 c.i. 365 HP
• OE Number: 3845643
• Shipping Weight: 5.7 oz
Because Details Matter
Using the correct GM-numbered V-belt restores more than just function—it protects authenticity and elevates engine bay presentation. Mid America Motorworks supplies belts that meet original standards in materials, markings, and fit.
Also known under these part numbers: (For reference only)