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Unread 10-13-2014, 08:49 PM   #1
fordgirl700912
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1970 351c 2v

Hello, I'm just trying to find out some info on 1970 Mustang engines. I have a 1970 Sportsroof with sport slats, racing mirrors, console and a 351C 2V. It is NOT a Mach 1. I have read that only Mach 1's came like this. I have seen H code can stand for either 351C or 351W no preference and you didn't know what you would get. I've heard 351C is rarer and blah blah. I've also read that there were more Mach 1's made than regular Sports roof and that most Sportsroofs except 13000 or so were 302. I guess I'm just trying to figure out how rare or not or common my car is. I do have the Marti Report and it states my car came with a 351W, but it clearly has a 351C in it. Is this on my report because most Sports roofs had 351W or can he somehow have info on what sspecific engine went in which car? Does my car not have the original engine?

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Sara
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Unread 10-14-2014, 04:59 AM   #2
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Sara, its possible a previous owner swapped the original engine out. Something else to look at is the transmission, since the cleveland and windsor don't share bellhousing bolt patterns. Look to see if you can get some numbers off the trans, and if they match check the bellhousing as it could have been changed...

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Unread 10-14-2014, 01:41 PM   #3
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I thought the H code was for Windsor, and the Cleveland was an M code.
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Unread 10-17-2014, 09:21 PM   #4
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The transmissions will interchange for a W and C. 250 6 CYL. 289,302,351W AND 351 Cleveland are the same. 351m,400,429 and 460 are the same. 1970 is the first year for the Cleveland it ran till 1974 and never went into a pick up.(though every one has a 77-79 F150 with a 351C) ha ha. Mach 1 in 70 had lower aluminum trim so that may help to tell a sports roof from Mach 1. I'd love to have either. See if you can find the Mustang red book all the numbers are in there. I'LL look for mine and see what info it gives.
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Unread 10-17-2014, 09:26 PM   #5
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Quote:
Originally Posted by autolite View Post
The transmissions will interchange for a W and C. 250 6 CYL. 289,302,351W AND 351 Cleveland are the same. 351m,400,429 and 460 are the same.
Yes, this is correct. Many people regard the Cleveland as a big block, which is incorrect.

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1970 is the first year for the Cleveland it ran till 1974 and never went into a pick up.(though every one has a 77-79 F150 with a 351C)
The 400 is a Cleveland block though, so it was rather easy to swap in the 351 Cleveland. My old man had a 66 Bronco with a 351 Cleveland and a C4. Pretty good running combo, once it warmed up.
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Unread 10-18-2014, 09:15 PM   #6
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I cann't find my book as of yet. Might want to go o Library there might be a book on decoding Mustangs down to where it was built and district of sale.
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Unread 12-10-2016, 11:21 PM   #7
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'69 was the last yr for 351 windsor's, '70 ford used the 351 cleveland's thru '73. I used to have a '69 mach= swapped out the windsor for a cleveland & then went to the Led Zeppelin concert. '69 was also the last yr of the cruddy ford shift, then Ford wised up & installed Hurst shifters. Easy way to tell is the windsor has the t-stat in the manifold like the 289/302 motors vs the t-stat on the cleveland. The shape of the valve covers are also different= bigger on the cleveland.
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