I found a 370!
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Laughing Gas
Joined: Jul 2001
Posts: 849
Likes: 14
From: Fayetteville, NC
I found a 370!
Just out of curiosity. Would a 370 bolt up to a NP435? Plus will it fit in a 78 F-150? One last question 
How are they on performance? Are they good on torque and hp? I found one today at the local yard in a school bus of all things! It's all there too. Just toying with the idea. Thanks guys!
Robert
1978 F-150 4x4 Stepside 351M
Please don't pull out in front of me! The last thing I want to do is play identify the pieces with you or your car.
How are they on performance? Are they good on torque and hp? I found one today at the local yard in a school bus of all things! It's all there too. Just toying with the idea. Thanks guys!Robert
1978 F-150 4x4 Stepside 351M
Please don't pull out in front of me! The last thing I want to do is play identify the pieces with you or your car.
Posting Guru
Joined: Aug 2001
Posts: 1,533
Likes: 2
I found a 370!
Forget it the 370 is a POS and low on horsepower and will not bolt up to your NP435. I would rather have a 460 over a 370 anyday as the 370 is a industrial Ford engine which is hard to find parts for.
Thread Starter
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Laughing Gas
Joined: Jul 2001
Posts: 849
Likes: 14
From: Fayetteville, NC
I found a 370!
Cool...thanks. That's all I needed to know
Robert
1978 F-150 4x4 Stepside 351M
Please don't pull out in front of me! The last thing I want to do is play identify the pieces with you or your car.
Robert
1978 F-150 4x4 Stepside 351M
Please don't pull out in front of me! The last thing I want to do is play identify the pieces with you or your car.
Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
I was always under the impression that the 370 was a small bore 429/460 and that they shared the same heads and the blocks on the outside where the same. I have read that the crank is different. The front snout of the crank has a larger dia.
It may not be a race motor but as stated they can pull a big bus around. Can't be to bad for a truck motor unless one wants a race motor.
Now that I think about it there is an old tow truck in the back of the shop lot and I think it has a 370 in it. I will have to check it and see what it has.
It may not be a race motor but as stated they can pull a big bus around. Can't be to bad for a truck motor unless one wants a race motor.
Now that I think about it there is an old tow truck in the back of the shop lot and I think it has a 370 in it. I will have to check it and see what it has.
More Turbo
Joined: May 2005
Posts: 560
Likes: 0
I believe the reason the big trucks used the 370's and 429's was because they used "slushbox" transmissions, which allowed them to reve high and take advantage of their short stroke and upper rpm power. This being said the 370 is not excellent for high power, high speed, but got the job done for the vehicles where speed is never an issue.
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
no. the slush box or automatic was never a option. all these industrial engines were externally balanced and needed a heavy flywheel. they relied on gears and lots of them. most used a clark or a NP 534 tranny with a 2 speed rear end.
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Tuned
Joined: Apr 2005
Posts: 320
Likes: 1
I don't think 370's were designed for top-end power, but rather low-end grunt. My understanding is that they are smaller displacement so that they are more durable (producing lower power, but with the same bottom-end makes them understressed) so they can run at 3500 rpm forever under a heavy load. GM did the same thing with a smaller version of the BBC, a 366, I believe.
Elder User
Joined: May 2004
Posts: 565
Likes: 3
From: saxton pa.
370's
The 370 will bolt up to your NP435 or any other 385 series trans including C6's & Allisons. They are a good truck engine the 4bbl version works better than the 2bbl one. They are done pulling around 3800RPMS. The 370 & 429 truck engines are internaly balenced you can use the pickup or car bellhousings with them. They have the large crank snout & use different pulleys and accessory brackets.
Good Luck--- Hotwrench
Good Luck--- Hotwrench
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
the 370 is not internally balanced, they are external as previously stated, they have a cast crank with a 3.59" stroke but a smaller bore than the 429. They have a very heavy flywheel, and harmonic balancer thus the low rpm use (most are goverened too) The block bieng small bore can be bored to standard bore for a 429/460 (if you have a set of custom standard bore pistons you want to reuse in a new block this si the way to go). I have heard of people turning the crank snout down to passenger car size and leaving hte small pistons in them and they will rev but why put a engine with big block weight and small block CID in anything? Thier intended purpose is med duty trucks and they are quite good for that application but I wouldn't use them for a pickup application.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
hotwrench,
they are external not internal. and have a governor built into the carb most set at 3,600 rpm. uhaul used them after the FT was stopped in 78. still pretty common to see them around. they also ran super low 7:5:1 compression
they are external not internal. and have a governor built into the carb most set at 3,600 rpm. uhaul used them after the FT was stopped in 78. still pretty common to see them around. they also ran super low 7:5:1 compression