Newbie Question
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Freshman User
Joined: Jul 2003
Posts: 28
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From: Akron,OH
Newbie Question
Hi everyone, I am new to the forum, First I would like to say nice to meet you all and I look forward to exchanging info with all you fellow "Ford Truck Enthusiasts" Well here is my first question and wondered if you guys could help me out. A few days ago I bought a 1977 F100 Custom and the 302 had been taken out and replaced with a 1974 351C. The motor does not smoke has plenty of power makes no noise but I noticed that the oil pressure gauge fall's down to nothing after the motor warms up. so i figured the oil sending unit was failing so I began to search for it and have had no luck locating it yet. This is my first 351C so im kinda stumped here. And I was also just wondering what you guys think of the 1974 351C is it a very good engine? maybe some of you currently run one or have in the past? just wondering what your thoughts and opinion's of this cleveland is.
Thanks in advance.....
Thanks in advance.....
Last edited by F100_77; Jul 15, 2003 at 07:12 AM.
Lead Driver
Joined: Nov 2000
Posts: 6,648
Likes: 352
From: Albuquerque
Newbie Question
Welcome aboard!
I would suspect you have a 351m instead of a 351c and the later never came in the truck from the factory and has different mounts etc.
for the oil pressure I would get an aftermarket gauge and/or a new sender for the stock gauge. The sender is behind the intake manifold screwed into the block with one wire on it. It's a little hard to get to. What weight oil are you running?
I would suspect you have a 351m instead of a 351c and the later never came in the truck from the factory and has different mounts etc.
for the oil pressure I would get an aftermarket gauge and/or a new sender for the stock gauge. The sender is behind the intake manifold screwed into the block with one wire on it. It's a little hard to get to. What weight oil are you running?
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Freshman User
Joined: Jul 2003
Posts: 28
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From: Akron,OH
Newbie Question
Thanks for the info! Found the sending unit and i am going to change it tomorrow. As for the oil, The seller I picked it up from said he ran 40 wieght oil in it, I am going to do an oil change this weekend (any oil grade suggestions?) As far as C VS M this motor says 351C on the rocker cover and also has a raised # 2 stamped on the upper left corner of the head. (Hope that helps)
Elder User
Joined: Sep 2001
Posts: 887
Likes: 1
From: Jax FL
Newbie Question
since you stated the motor was swapped prior to you owning it, i would ask the previous owner and go with that. the only other way to know, is measure the width of the intake, the 351M is much wider than the 351C
Post Fiend
Joined: Jan 2003
Posts: 10,323
Likes: 2
From: Montana Territory
Newbie Question
I have always used Shell Rotella 15w-40 and its a good oil.
The 351C is a powerhouse to say the least, yet some have oiling problems, there are many out there with oil passage defective cranks and just a misguided oiling route. You can find out how to fix it by searching throught the forums. I love clevelands and I can't wait until my engine blows up so i can replace it with the 351C on my garage floor.
The 351C is a powerhouse to say the least, yet some have oiling problems, there are many out there with oil passage defective cranks and just a misguided oiling route. You can find out how to fix it by searching throught the forums. I love clevelands and I can't wait until my engine blows up so i can replace it with the 351C on my garage floor.
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Freshman User
Joined: Jul 2003
Posts: 28
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From: Akron,OH
Newbie Question
Originally posted by beartracks
Welcome aboard!
I would suspect you have a 351m instead of a 351c and the later never came in the truck from the factory and has different mounts etc.
for the oil pressure I would get an aftermarket gauge and/or a new sender for the stock gauge. The sender is behind the intake manifold screwed into the block with one wire on it. It's a little hard to get to. What weight oil are you running?
Welcome aboard!
I would suspect you have a 351m instead of a 351c and the later never came in the truck from the factory and has different mounts etc.
for the oil pressure I would get an aftermarket gauge and/or a new sender for the stock gauge. The sender is behind the intake manifold screwed into the block with one wire on it. It's a little hard to get to. What weight oil are you running?
Trending Topics
Posting Legend
Joined: Sep 2001
Posts: 30,255
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Newbie Question
Yes, Check with the big dogs in the Carb forum for the best help, not that the gearheads in here couldn't drive you insane with their help -hehe
We have specialized forums like this one on the Cleveland style engines where the experts hang out, please use them.
We have specialized forums like this one on the Cleveland style engines where the experts hang out, please use them.
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Freshman User
Joined: Jul 2003
Posts: 28
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From: Akron,OH
Newbie Question
Originally posted by Torque1st
Yes, Check with the big dogs in the Carb forum for the best help, not that the gearheads in here couldn't drive you insane with their help -hehe
We have specialized forums like this one on the Cleveland style engines where the experts hang out, please use them.
Yes, Check with the big dogs in the Carb forum for the best help, not that the gearheads in here couldn't drive you insane with their help -hehe
We have specialized forums like this one on the Cleveland style engines where the experts hang out, please use them.
Thanks, Will do!
