How much horsepower does a 428 engine have?

How much horsepower does a 428 engine have?

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….428 Cobra Jet Performance Specs.

Horespower	335 @ 5600 RPM
Compression Ratio	10.6:1
Displacement	428 Cubic Inches (7.0L)
Bore	4.13 Inches
Stroke	3.984 Inches

Was the Ford 428 a good engine?

With the longer stroke, the 428 was a better street motor. All 427 engines were racing motors, period. The 428 gives a lot of torque all through the rpm range. Ford even put a single 4 barrel 428 with 390 heads and intake, rated at 345 horses, in a station wagon.

How much horsepower does a 428 Police Interceptor have?

335 hp
In original factory trim the 428 Cobra Jet was capable of well over 400 hp at 5,600 rpm however Ford claimed just 335 hp to keep insurance companies happy – a number of other theories for this power understatement have been floated over the years, including the fact it allowed the car to qualify for lower power classes …

How much horsepower does a 1968 428 have?

Engine Basics

Year	1968
Power (hp)	335 hp @ 5,400 RPM
Torque (lb/ft)	440 lb/ft @ 3,400 RPM
Compression	10.6:1
Displacement	428 cu / 7.0 liters

What Fords 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 makes a 428 a Cobra Jet?

With 335 hp, the potent 428 CJ offered a huge leap in power over the smaller 390-cube V8, which was the top Mustang engine for 1967. Bob Tasca of Tasca Ford in Rhode Island is credited with creating the engine recipe by mixing high-flowing 427 cylinder heads with the stout bottom-end of a FE 428 to create “Cobra Jet”.

Which is better Ford 427 or 428?

The 428’s were rated for about 335hp. If you dyno a near factory 428 today, you’ll see about 375-385hp. The 427’s were rated for 425 hp, but I’d say they were a little under-rated as well. so 428 less power more torque and a little less temperamental , 427 more hp at the top end .

What is the difference between a 428 and a 429 Cobra Jet?

In 1970 the 428 Cobra Jet Motor was replaced with a 429 CJ engine. The change occurred in the middle of the production year so some early Cobra Jet cars had 428’s, later cars were 429’s. The 429 Cobra Jet package included: Bigger heads with larger ports and valves.

Is a Ford 428 a big block?

The Ford 428 Big Block V8 Birthed The Cobra Jet And Changed Mustang Muscle Cars Forever. Ford’s original big block V8s dated all the way back to 1958 when the FE family of engines debuted with the original 332 cubic inch design (accompanied by a 352 cubic inch option as well).

How much horsepower did the 428 Cobra Jet really have?

With 335 hp, the potent 428 CJ offered a huge leap in power over the smaller 390-cube V8, which was the top Mustang engine for 1967.

How can you tell if you have a 428 block?

Some blocks have a “428” cast onto the floor inside the water jacket. There are two common positions to view this protruding number: one is just inside the center freeze plug hole, the other is directly beneath the long coolant slot at the rear of the block.

How much horsepower did a 1969 428 Cobra Jet have?

Ford’s press release said that 428-cubic-inch displacement Cobra-Jet V8 with Ram-air induction made 335 horsepower. That is impressive performance for that era. Hot Rod magazine proclaimed the Mach 1 with the 428 “the fastest running pure stock in the history of man.”

Was there a Boss 428?

The Boss 429 Mustangs came with the most unique of Mustang engines….

Mustang Big-Block Production*
’67 390	29,457
’69 390	10,549
’69 428 Cobra Jet, Q-code	**2,921
’69 428 Cobra Jet, R-code	**12,212

What is the difference between a Ford 390 and a 428?

As referenced earlier, the 390 was a 4.050 bore and a 3.781 crank. The 428 was a 4.130 bore and a 3.984 crank. Ford 428s had a different water jacket core which can often be identified by the “428” cast in the bottom of the inner water jacket right under the center freeze plug.

What years did Ford make the 428?

Best of all, unlike the fire breathing 427 FE (which was mostly installed in fullsize 1963-1967 models), the 428 CJ was commonly available in all the popular midsize Ford-Mercury muscle models….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 do you tell the difference between a Ford 390 and 428?

How much horsepower did the Boss 429 actually have?

1969 Ford Boss 429 BOSS 429 The Boss 429 engine used a single Holley four-barrel carburetor rated at 735 CFM mounted on an aluminum intake manifold. All these cars had 4-Speed Manual Transmissions and the Boss was rated very conservatively at 375 HP while actual output was believed to be well over 500 horsepower.