4Stangs

The big difference is the heads.

For the purpose of dropping a motor into a fox body, stick with a windsor. More parts are available for the swap and the stock block is a little more reliable than the Cleveland. I make 637 horsepower in my 85 GT with a 418 stroker and AFR heads...natrually aspirated. Over 800 with some spray. With that said, I'm asking for a split block. i plan on putting together a Dart block this winter.

If you want big horsepower from a small block ford, get a world products casting or Dart casting block and put cleveland-like Yates heads on it along with all the proper parts (cam etc.). Check the rules if your building a street/strip or full-on strip car since Yates/Cleveland style heads are not legal in some classes.

Leave the original Cleveland 351s for the 69 through 73 Mach 1 restorations.

My opinion...it's worth almost what you paid for it.

Twister

1. the windsor has a wider lower end that is stronger and requires a different oil pan

2. the 351M has the 385 series bellhousing, the 351C uses the 90* family pattern (289-302-351W)

Twister

1. The C was first available in 1970
2. Not all 1970-73 MACH's had the C, quite a few had a 2V W

4Stangs

That is correct...I made a mistake including the 69 model year. 69 mach 1s had the W when equipped with a 351. The Cleveland was introduced in 70 and changed in May 71 with 4 bolt mains (among other changes) and called a cobra jet in the Boss 351 mustang which was the fastest production mustang until the 03 cobra came along.

Thanks for clearing that up.

machme72

I have a 72' "Q" code(351 Cobra Jet) and that still has a 2 bolt main orignal motor. I'm assuming the 351HO "R" code had 4bolt.

Jagular35

they also put them in (my favorite) the DeTomaso (sp?) Pantera... the Cleveland that is (my dad had a 72 hehe)