351m 400

High Performance Options for the 351M/400 Engine

By David Resch. High Performance Options for the 351M/400 Engine. From 1977 to 1982, M-block (351M/400) engines were a mainstay of Ford light truck powerplants. During …

Ford 335 engine - Wikipedia

By 1970 the 390 V8 FE engine was becoming outdated. With pending emission requirements, a more modern replacement was needed. Although the big-block 385 family was used to replace the larger displacement 428 V8 FE engine, this engine family had nothing comparable in size to the 390 V8. For the 1971 model year, Ford introduced the 400 V8 engine as a replacement for the 390 V8. Ford billed the 400 as the 351C's big brother. It was designed to provide brisk accelerat…

Ford 400 Engine: Options, Size, And Specs - VehicleHistory

The Ford 335 Series V8 Engines (351C, 400, 351M)

The 351M and 400 were last used in the 1982 Ford pickups. The 351M was a compromised design. While it still possesses all of the advantages of the 335-series family, it was saddled with the worst heads and was produced …

What’s the Difference Between a Ford 351 Windsor, …

351 Modified. The 351M is part of the same Ford 335 V8 engine series as the 351 Cleveland. It’s based off of the 400 Modified engine (see note on nomenclature in opening paragraph), which was essentially a 351C with a …

351M/400 Performance Build Up - Project Bronco

Since the 351M/400 engines are in the 335 engine series, every single cylinder head from any engine in the 355 family will all interchange with these engines. That leaves at least 6 distinctly different types of cylinder heads that will work …

351M AND 400 - Gary's Garagemahal (the Bullnose bible)

It says "Both 351M and 400 engines have the same 28 oz-in crankshaft imbalance, so all M-block flywheels have the same balancing counterweight, and they can be interchanged without vibration or balance problems." But, Ford …

351M VS 400M difference | Ford Muscle Cars Tech Forum

The 400 is obviously better, it has a extra 50 cubic inchesof displacement and the half inch of stroke on the grank that gets that displacement. So the 400 makes more power. …

The Ford 335 Series V8 Engines (351C, 400, 351M)

The 351M and 400 shared virtually all parts, save for the crankshaft and pistons. The 351C was only in production for 5 years in the North American Market. It was discontinued after 1974 and was replaced by a tall …

The Mutt - Over 500hp and 565 lb-ft from Ford's 400m

That second scenario was the case when Ford debuted the 400 in 1971. ... So you can see why the 400 (and Ford's 351M, which has a 3.50-inch stroke rather than the 400's …

Building Classic Ford 351 Cleveland Power

The 351M and 400 have a taller deck at 10.297 inches. Cleveland crankshafts all look the same, however, they are different. The 4M crank has a 3.500-inch stroke and a 2.750-inch main journal. The 400 crank has a larger …

Converting 351m to 400 - Ford Truck Enthusiasts Forums

Forum Jump. 335 Series- 5.8/351M, 6.6/400, 351 Cleveland - Converting 351m to 400 - Hello. After looking at all the engine swap options for my 77, I believe i've decided just to …

351m/400 rebuild or replace options - Ford Truck Enthusiasts …

335 Series- 5.8/351M, 6.6/400, 351 Cleveland - 351m/400 rebuild or replace options - I spend most of my time over on the 73-79 forum, but have been looking over here …

351m to 400? - Ford Truck Enthusiasts Forums

The rods are all the same between the 351M and 400 engines. The 400 pistons just happen to have the same compression height as the 351C pistons. The difference is the 400 …

History of the Ford 351M - Project Bronco

The 351M/400 engines were used in light-duty trucks starting in the 1977 model year. Ford Engineers developed the 400 engine in response to the new Government pollutions requirements that were to start in the 1971 model year. Ford needed a tough, “workhorse” that was small enough to meet the new Government regulations and yet rugged enough ...

351m vs 400 - Ford Truck Enthusiasts Forums

The 351M is a purposefully smaller version of a purposefully de-tuned 400 - so yes it gets a bad rap. The 400 can be an excellent engine if built outside the confines of the …

How To Build a Ford 351 Cleveland - MotorTrend

It took the heavier tall-deck 400 with its 4.000-inch bore and 4.000-inch stroke and destroked it to a 3.500-inch stroke to conceive the 351M, which really isn't a 351C at all.

Transmission options for the 400/351M - Ford-Trucks.com

Transmission options for the 400/351M. I'd like to make a list of transmission options for the 400 and 351m. Please note If it's manual or automatic, number of speeds, …

compression ratio of stock 1990 351w - Ford Truck Enthusiasts …

not sure, but it would be nowhere near one with an aftermarket set of heads. i know this sounds obvious, but my point is that the factory heads on these engines are …

M-Block 351M/400 History - grantorinosport.org

The 351M was a simple de-stroked adaptation of the 400, and it allowed Ford to offer both 351 cid and 400 cid engines with fewer different parts and more common packaging than the 351C allowed. Since the 351M and 400 use the same block, the engine mounts and bell housing bolt patterns are common to the two engines.