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3,686 Posts
Discussion Starter · #1 ·
When Chevrolet pushed its reliable and snappy 283ci small-block to 307 cubic-inches, Ford
stroked the 289 just .019-inch to achieve the 302. The 302 block is a different block than the 289,
though both are interchangeable. The 302 block is clearly marked as a “302” in the lifter valley.
What makes the 302 block distinctive is the use of a slightly longer cylinder skirt to accommodate
the modest increase in stroke. This feature afforded the 302’s piston skirts increased stability at the
lower end of the bore, which made for quieter operation (less piston noise).
Though the 302 has a .019-inch longer stroke, it actually has a shorter connecting rod (5.090-
inches center-to-center) which is not interchangeable with the 221, 260, 289 or Boss 302. The 221,
260, and 289 rod is longer at 5.155-inches from center-to-center. The 302’s shorter rod, when
combined with the longer crankshaft throw exclusive to the 302, gives this engine a longer stroke.
Aside from the differences just mentioned, the 302 is virtually the same as the 221, 260 and 289
engines. During the 302’s first model year, 1968, those pent-roof steel valve covers were
embossed with the words “Power By Ford,” which was standard until the mid-1970s when the Ford
oval took its place.

The 302 has evolved considerably since its introduction in 1968. Beginning in 1978, Ford began
calling the venerable 302 the “5.0 Liter” V-8. It was equipped with a cast aluminum intake manifold
and spun-aluminum air cleaner housing. The 5.0L has grown to become one of the most respected
V-8 engines of our time. Beginning in 1982, Ford fitted the 5.0L with a high-performance 351W
marine camshaft to conceive the 5.0L High Output engine with two-barrel Motorcraft 2150
carburetion. Just one year later, the 5.0L was fitted with a cast aluminum four-barrel intake manifold
and Holley four-barrel carburetion. These valiant steps led to more powerful 5.0L engines to come.
In 1985, Ford revised the 5.0L block to accept roller tappets, which improved performance and
reliability dramatically. One year later, the 5.0L V-8 was fitted with “fast-burn” cylinder heads
borrowed from the F-series trucks and Sequential Electronic Fuel Injection (SEFI). The 5.0L engine
has remained virtually the same ever since.

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3,321 Posts
Re: more 5.0/302 info

Very good writeup!


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4 Posts
Nice basic write up, but far from complete. The 85 roller block was a one year only item. In 86 Ford improved it by adding another 4 lbs of iron in the decks and bottom if the bores. Also the 86 heads(E6SE) were a one year only item on the Stangs and were seldom if ever used in the trucks. They were used on the std pass car 5.0 til the end of the 5.0 in the Towncar, Vic and Marquis in 91.

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3,686 Posts
Discussion Starter · #7 ·
well the best part about this site is that we try to come together to find all the info so we can complete every things that is know to be true and as far as basic its just what we need i was asked what the differ was between a 5.0 and a 302 thanks for the input thought

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583 Posts
Now we need to get the specs on the brand new coyote 5.0
412 hp and 390 ft. lbs.
Dual overhead cam
varialble valve timing on both intake and exhaust
aluminum block/ heads
11.1 compression ratio.
26 mgp highway
and a whole lot of other goodies

Pretty dam impressive if I don't say so myself

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3,411 Posts
Love the new engines! And the intake is a true cold air induction system!
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