Living Legend wrote: |
rangerj wrote: | If you are talking about Ford "Windsor" engines those are Ford engines made at their Windsor, Ontario Canada engine plant. Ford "Cleveland" engines are made at the Ford Cleveland, Ohio USA engine plant. |
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Windsor is a small block
Cleveland is a big block |
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Actually both answers are wrong! Well, not really wrong, let's call them mis-informed!
Windsor motors were
developed in the
Ontario plant but not all Windsor motors were produced there. All
Clevelands were both developed and built in Cleveland, and were built for only four years.
The 351 Windsor is certainly a small block and one based on the 289/302
family of motors. It has 5 bolt straight valve covers, routes water
through the intake manifold and uses regular spark plugs. The timing
chain is in the block and the valves and heads are smaller. It also had
thin wall end caps limiting the horsepower the engine could make. The
oiling system was one of the best available in a production engine.
The 351 Cleveland is called a big small block (those clever Ford
marketers!) and comes from the 355 family of motors. It has 8 bolt two
plane valve covers, doesn't route water through the intake, uses
smaller 14mm spark plugs, has a separate housing for the timing chain
and some of the best heads to come out of Detroit (well, Cleveland!)
with huge valves. It was those heads and valves that made the Cleveland
a more powerful engine than the Windsor, which was no slouch either.
This engine came with thicker and larger end caps allowing engine
tuners to drill them out for a 4 bolt main, thereby allowing greater
compression without blowing out the rods. The oiling system sucked and
the engine was often starved of oil at higher revs, which goes to
explain the short build life.
To really confuse things the Boss 302 Windsor used the heads from the 351 Cleveland to increase breathing and horsepower.