Melling V1173
Exhaust valve for selected Ford 302 and 351 performance applications. 1.710” / approx. 43.43 mm head, 5.058” / approx. 128.47 mm length.
Melling V1173 is an exhaust valve for selected Ford Small Block and Cleveland performance applications, including 302 and 351 engines. The larger 1.710” valve head makes it suitable for cylinder heads built for this specific valve size, not every stock 302/351 configuration.
Application / fitment
Used in selected Ford and Mercury applications with 302 / 5.0 and 351 / 5.8 engines, especially performance configurations such as Boss 302 from 1969–1970 and Boss 351 from 1971, depending on cylinder-head and valvetrain setup.
- Ford 302 / 5.0 — selected performance cylinder heads
- Ford 351 / 5.8 — selected performance cylinder heads
- applications requiring a 1.710” / approx. 43.43 mm exhaust valve head
Before installation, compare valve head diameter, overall length, stem diameter and lock-groove type with the valve removed from the cylinder head.
Technical information
- Part type: exhaust valve
- Application family: selected Ford 302 / 351 performance engines
- Valve head diameter: 1.710” / approx. 43.43 mm
- Valve stem diameter: 0.342” / approx. 8.69 mm
- Overall length: 5.058” / approx. 128.47 mm
- Lock groove quantity: 1
- Material: high alloy steel
- Valve face angle: 44°