1968 Cougar, Identify 351 Vs 302

webshot · Apr 19, 2016

Sorry if this is ill placed or the wrong place to ask. But I am buying a 68 cougar and the gentleman is saying it came stock with a 351 cleveland. According to my knowledge and decoding the vin that was not a option. But not to say one was not put in there at some point, how can I identify the motor? Are the visual differences I can spot? Casting numbers?

Any help appreciated.

Side note: Any one know a good website or resource for 68 cougar parts?

horse sence · Apr 19, 2016

68 Cougar came with a 289 early in the year ,later in the year the 289 was dropped and the 302 took its place .
351 windsor was not offered until 69 . The 351 Cleveland was not offered until 1970
You should have a vin code in the fifth digit of either C for -289 2V ,A for -289 4V , or J for a 302 4 V. Or an S for 390

horse sence · Apr 19, 2016

If you can post a pic it will be fairly simple to identify the motor .

webshot · Apr 19, 2016

I'll get a pic in the am. Thanks

webshot · Apr 20, 2016

Is it possible to add pics from your phone here?

webshot · Apr 20, 2016

This is the motor

LILCBRA · Apr 20, 2016

It looks like a Cleveland headed monster to me....

While I'm fairly certain 68 Cougars didn't come with Clevelands at all, this could just be a case of the drivetrain being completely stock and maybe this guy doesn't know what he is talking about. "It looks stock, therefore it is stock." could be his mindset. Nevertheless, I'll bet it motates pretty well!

Actually been thinking of Cleveland swapping the wife's 67 off and on. I think she has settled on wanting a V8 swap for it, so when we get down to it I'll be shopping. Maybe I'll get lucky and find a Cleveland...?

LILCBRA · Apr 20, 2016

Cleveland style engine.....

Cleveland heads:

Windsor style engine:

Windsor heads:

Notice the thermostat housing location on the block for the Cleveland vs the Windsor's intake manifold. Also, the heads of a Cleveland are almost block shaped, Windsor heads have an angle you can definitely see on the exhaust side. The Cleveland exhaust ports are also "raised" away from the rest of the casting as I hope the pic that I shared helps illustrate. You will be able to see the head bolt heads on top of these sections.

I hope this helps a little!

webshot · Apr 20, 2016

Thanks man. Does a 351c bolt up to the stock transmission? Or should that have been swapped to something else as well?

horse sence · Apr 20, 2016

Yep 351 Cleveland .It will bolt up to a stock transmission . You will have to use the flex plate for the transmission that you plan to use .It probably has an FMX behind it if they used the same year transmission ,that is a very tough transmission .

LILCBRA · Apr 21, 2016

If memory serves, an actual Cleveland will accept stock SBF bell housings, but the 351M engines bell bolt pattern changed and mates to BBF bells. That will be something to look for/at if you are looking for transmissions.

1968 Cougar, Identify 351 Vs 302

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1968 Cougar, Identify 351 Vs 302

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