351C/400 difference
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From: chicago burbs
are you not sure if you have a Cleveland or a 351M/400? the 351M and 400 are visually identical but the Cleveland is different. is this engine the original to the vehicle? US trucks never came with a Cleveland, only the M/400. if the engine is believed to be original, what is the 5th digit of the VIN? if not we can go from there.
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From: Ballston Spa, NY
f26sr is the first five it is believed to be a cleveland because of the number of bolts in the valve covers. a cleveland has 8 and the m has six? let me know this truck might be rare
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From: chicago burbs
the "F" in script in front of the VIN doesn't count, that's the first 4, what's the next digit? is the engine believed to be original to the body? Cleveland and 351M/400's use the same valve covers, so same bolt count. you can't tell them apart that way.
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From: Oregon
Originally Posted by YoungMT Hick
...because of the number of bolts in the valve covers. a cleveland has 8 and the m has six?
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From: Oregon
Originally Posted by grclark351
the Cleveland and the 351M/400 use the same valve covers.
Difference between a 351M and a 400, measure the stroke, like mentioned in OP.
Difference in 351C & 351m, search. I did and one of the first to pop up was this:
https://www.ford-trucks.com/forums/6...ight=cleveland
Last edited by ihateminimumwage; Oct 20, 2007 at 01:32 AM.
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From: Simi Valley, CA
Originally Posted by YoungMT Hick
f26sr is the first five it is believed to be a cleveland because of the number of bolts in the valve covers. a cleveland has 8 and the m has six? let me know this truck might be rare
F26 = F250 4WD
S = 400 2V
R = San Jose CA Assembly Plant
351C/351M/400 all have 8 valve cover bolts.
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From: Simi Valley, CA
Originally Posted by grclark351
the "F" in script in front of the VIN doesn't count, that's the first 4, what's the next digit? is the engine believed to be original to the body? Cleveland and 351M/400's use the same valve covers, so same bolt count. you can't tell them apart that way.
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From: Simi Valley, CA
Originally Posted by grclark351
ok, the truck vin might be different. i was going by the Ranghero/car vin digit placement, where the engine would be the 5th digit. "R" didn't ring any bells. thanks.
Samples from 1965: Cars: 5RO2C123456 / Trucks: F10DR639123
Cars went to 17 digit VIN's in 1980, trucks in 1981.
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From: chicago burbs
Last edited by grclark351; Oct 20, 2007 at 06:24 PM.