How much HP can you get out of a 428 engine?

After some break-in miles, we’d likely see 375 hp and, with headers, yes, very likely 400 ponies. The peak torque of 452.4-lb-ft at 3,700 rpm is also higher than Dearborn’s claim of 445 lb-ft at 3,400….Testing 4-2-8… How Much Horsepower Does the Ford 428 Cobra Jet Really Make?

RPM	Torque (lb-ft)	HP
5,000	376.5	358.9

How much HP does a 428 have?

428 Cobra Jet Performance Specs The Cobra Jet engine was officially rated at 335 horsepower at 5600 RPM and a peak torque of 445 lb-ft of torque at 3400 RPM.

How much power can a 428 Cobra Jet make?

The Cobra Jet was a high-performance version of Ford’s 428 big-block and it was so laughably underrated that even the NHRA ignored Ford’s numbers. The engine was rated by Ford at 335 horsepower, but the NHRA gave it a 390-horsepower rating.

How much is a 428 Cobra Jet engine?

In the realm of Mach 1 cars, the one that collectors want is fitted with the 428 cubic-inch Cobra Jet engine. This example looks nearly perfect and is on eBay with a Buy It Now price of $59,900. That seems a pretty good price for a clean 1969 Ford Mustang Mach 1 with the most desirable of engines under the hood.

What Ford cars came with a 428?

The engine was also available in the Fairlane, the Torino, and the Mercury Comet, Cougar, and Cyclone. In 1968 Ford kept the 428 in the picture but added the Super Cobra Jet option, which upgraded the crankshaft and connecting rods to better handle the stress of regular drag racing punishment.

What is a Super Cobra Jet?

The 428 Super Cobra Jet version was offered as a Drag-Pack option. It utilized a shaker hood scoop, temperature decreasing engine oil cooler, modified crankshaft, and stronger connecting rods for high-end revving. The powerful engine was backed by a four-speed manual transmission that fed into a limited-slip rearend.

How do I identify a Ford 428 engine?

How to Identify a Ford 428 Engine

Examine the cylinder head of the engine.
Look at the cylinder’s bolt pattern.
Measure the intake valve diameter.
Look for extra main-bearing webbing.
Examine the crankshaft.
Look for the reinforcement plate for the horn bolts behind the radiator core support.

What is the rarest Boss 429?

The Ford Mustang Boss 429 is one of the most sought-after classic cars on the planet. Just 1,359 units were built during its two-year run between 1969 and 1970, and only 499 of those were produced in 1970.

What is a 428 Cobra Jet?

But on April 1, 1968, Ford pulled a literal fast one and introduced the 428 Cobra Jet — a street-legal racer packing a deliberately under-rated engine meant to game the NHRA class rules (and insurers). A 735-CFM Holley carb breathing through Ford’s first ram air system topped it all off.

How do you identify a Ford 428 FE series engine?

The FE series of Ford engines has not been produced since early 1970. FE engines look the same when viewed from the topside, so inspecting the bottom and sides is essential for a positive identification, according to ERA Replicas: Engines. Using the engine casting number will help you identify the 428 FE series engine.

What is the difference between a 428 and a 428 Cobra Jet?

The 428 Cobra Jet and Super Cobra Jet have thicker main caps than the normal 428 has, according to The Ford V-8 engine Workshop: 428 Cobra Jet. Examine the crankshaft. On the Cobra Jet engine, a special front oil seal sleeve with a cast-on counterweight is used for high-speed reliability.

What kind of engine does a SCJ 428 have?

SCJ engines use 427 Le Mans-style rods with cap-screws and forged pistons. Beginning with the 1968 model year, Ford stamped a partial VIN number on production engine blocks. If the block has a casting date of 1967 or earlier, it is most likely a 428 Police Interceptor block and not a 428 Cobra Jet.

What kind of crankshaft does a Mercury 428 FE have?

The 428-ci FE engines shared their 3.98-inch stroke with the 410-ci FE series engines used in Mercury vehicles. The “1U” stamping on this crankshaft reveals that it is a standard production 428-ci part.