Mishimoto MMHOSE-GM-1U Upper Silicone Radiator Hose 1965-67 Chevelle 250ci Blk

Vehicle Fitment

• 1965-1967 Chevrolet Chevelle (250ci 4.1L Inline-6)

Fitment Notes

• Fits the 250ci (4.1L) inline-6 engine only - different upper hoses are required for V8-equipped 1965-1967 Chevelles (283ci, 327ci, 396ci)
• This is the upper radiator hose only - the lower radiator hose is sold separately
• Direct OEM-fit replacement - no trimming or modification required
• Available in black only (Classic Line)

Features

• 5-layer silicone construction with heat-resistant embedded fibers for superior heat and pressure tolerance over decades-old OEM rubber hoses
• Rated to withstand temperatures up to 330°F for reliable long-term performance in classic car applications
• Resists cracking, hardening, and degradation caused by heat cycling and age that affect original rubber hoses
• Black finish provides a clean look in the engine bay of any show, driver, or restomod Chevelle
• Includes 2x worm-gear clamps for a complete, secure installation
• Backed by the Mishimoto Lifetime Warranty

Specifications

• Fitment: 1965-1967 Chevrolet Chevelle, 250ci (4.1L) Inline-6
• Hose Position: Upper Radiator Hose
• Hose Material: 5-layer silicone with heat-resistant embedded fiber reinforcement
• Max Temperature: 330°F (166°C)
• Color: Black
• Clamp Torque: 22 in-lbs (2.5 N·m) recommended; range 18-27 in-lbs (2-3 N·m); max 27 in-lbs
• Warranty: Mishimoto Lifetime Warranty

Included Components

• 1x Upper Silicone Radiator Hose (Black)
• 2x Worm-Gear Clamps

Product Description

The Mishimoto MMHOSE-GM-1U is a direct-fit silicone upper radiator hose for the 1965-1967 Chevrolet Chevelle equipped with the 250ci inline-6. After 60-plus years, the original rubber upper radiator hose on these first-generation Chevelles has either failed, been replaced with substandard rubber, or is well overdue for an upgrade. This Mishimoto hose replaces it with 5-layer silicone embedded with heat-resistant fibers - a material that won't crack, harden, or collapse under the heat and age that destroy rubber, making it a lasting choice whether the car is a weekend driver, show vehicle, or restomod build.

The hose installs directly at OEM routing points with the included worm-gear clamps and requires no cutting or modification. Note that this hose is specific to the 250ci inline-6 engine - Chevelles with V8 engines require engine-specific upper hoses from Mishimoto's Classic Line. The lower radiator hose is available separately. Backed by the Mishimoto Lifetime Warranty.