Application:

for Ford F100 Truck 360ci V8 5.9L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford F100 Truck 352ci V8 5.8L with 2 Inch Outlet Exhaust Manifold 1965-67

for Ford F100 Truck 390ci V8 6.4L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford F150 Truck 390ci V8 6.4L with 2 Inch Outlet Exhaust Manifold 1975-76

for Ford F150 Truck 360ci V8 5.9L with 2 Inch Outlet Exhaust Manifold 1975-76

for Ford F250 Truck 390ci V8 6.4L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford F250 Truck 360ci V8 5.9L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford F250 Truck 352ci V8 5.8L with 2 Inch Outlet Exhaust Manifold 1965-67

for Ford F350 Truck 352ci V8 5.8L with 2 Inch Outlet Exhaust Manifold 1965-67

for Ford F350 Truck 390ci V8 6.4L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford F350 Truck 360ci V8 5.9L with 2 Inch Outlet Exhaust Manifold 1968-76

for Ford Motorhome M-400/450 390ci V8 6.4L with 2 Inch Outlet Exhaust Manifold 1973-75

for Ford Motorhome M-400/450 360ci V8 5.9L with 2 Inch Outlet Exhaust Manifold 1973-75

OE/Part number:

674-241, 674241, C8TZ9431B, 674-240, 674240, D0TZ9430A

Specification:

Condition: Brand New

Type: Exhaust Manifold

Product for: Direct for

Material: Cast Iron

Gasket or Seal Included: Yes

Mounting Hardware Included: Yes

Port Shape: Round

Engine: 5.8L/5.9L/6.4L

Package included:

2*Exhaust Manifold;

2* Manifold Gasket and 2 Flange ;

4* Studs;

4* Nuts

As Picture Shown

Feature:

【Heavy-Duty Cast Iron Build】
Durable aftermarket-grade cast iron construction withstands extreme temps and vibrations for extended service life.

【Aftermarket Direct Fit for OE Replacement】
Precision-engineered to match OE specs for straightforward bolt-on installation—no major modifications required for most applications.

【Efficient Heat Dissipation】
Natural thermal conductivity helps manage engine bay temperatures and protect adjacent components.

【Reliable Leak-Proof Sealing】
Machined flanges with uniform bolt patterns ensure tight seals with standard aftermarket gaskets (sold separately).

【Rugged Performance for Demanding Vehicles】
Built for trucks, SUVs, and high-mileage cars—delivers consistent strength under heavy loads and harsh conditions.

Note:

*Professional install recommended (especially for performance headers) for proper sealing & torque.
*Replace gaskets (new ones required, included or sold separately) – reused old gaskets may leak.

Frequently Asked Questions:

Q: Are both manifolds studs the same size apart?

A: The spacing between the two manifold studs is the same.