Hi everyone, I just had a couple of questions, I recently found out that my 74 highboy has a dead 360 in it. It was smoking and had no compression in one of the cylinders, so I found a guy with 2 352s that wanted to swap me for a 302 I had, he said one engine smoked and the other was fine. So I go the engines today and the good engine seems to be missing the flex plate, so I was wondering if the one from my 74 360 would work. The reason I am asking is because the 352 doesnt have a harmonic balancer, but I heard they are balanced through the main pulley. If I use the flexplate from my 360 am I going to have to also use the balancer from it as well? Is there anything else I could swap tform my 360 if need be, beside the obvious, also, do 352 have any bad traits I should be on the lookout for? Thanks in advance, Jack

 

The 352 is essentially the same motor as your old 360, so they would pretty much have the same type of issues.
I won't claim to be an expert on the other stuff though, so I'm sure somebody else can help ya out. You also might be better off posting this in the FE(352,360,390) engine forum.

 

Jack, The 360 is a 390 bore engine with a 352 crank, so no problems there. You will need to be aware of prior str. drv. / auto use. The str. drv. used a pilot bushing on the end of the crank that will have to be removed before using it with an auto. The 428 crank is the only one in the FE family that is different.


John

 

Thanks for the help guys, so what you are saying is that I can use the 360 flexplate without swapping the damper from the 360? If you remember in my earlier post I had stated that the 352 I am going to use doesnt seem to have a seperate balancer like the 360 does, it just has a 2 groove pulley. I read last night that the 352 with the 2 groove pulley is actually the balancer and thats why you dont see a balancer like the 360. Does that sound right? If it is right, then you are saying that I can just take my flexplate from the 360 and slap it on the 352 and leave the pulley the way it is and not swap the balancer from the 360? Let me know if we are on the same page, and thanks again for the help.-----Jack

 

Jack, How much more do I need to write for you to get it? A pilot bushing or bearing in the rear end of the crank that is required for a straight drive is the only difference. Forget about what is on the front end of the engine.


John

 

Wouldn't it make a difference if a motor was internally balenced causing it not to need a balencer? He needs to know wheather he needs a HB as well as if there is a difference in flywheels.

 

Hey John,

I guess we arent on the same page, first of all, if I am bothering you, don't answer, second of all, when you mention pilot bearing, straight drive, I am thinking you are talking about a standard shift tranny? I am dealing with an auto tranny, thats why I said flexplate. I think things may have gotten a little mixed up. Normally, if you have a harmonic balancer, the flexplate has to be matched with it, to balance things out, so when I saw that my 352 had no harmonic balancer and that my 360 did, I automatically thought that my 360 flexplate would not work on the 352. Thats why I mentioned the harmonic balancer. I don't know your what way you meant to say "How much more do I need to write for you to get it?" But it seemed like I was pissing you off, if that is the case, then I don't need your help. I came to this forum for a little guidance, this is the first time I am dealing with a FE or an old 70's Ford truck, I normally deal with SB engines and I have been building street rods and muscle cars for many years, I am a custom metal fabricator as well, so you arent dealing with a dummy once it come to cars here, I simply misunderstood. I see you have over 14k posts on the forum so you are obviously knowledgable once it comes to these trucks, but some of us are still learning, at least I know I am. Anyhow, I was gonna go and buy a flexplate for a 352 because I don't want to put this engine in my truck with a 360 flexpate and then have a vibration problem. Sorry if I took you the wrong way when I read your last post, and I do appreciate your time.-----Jack

 

Ford calls automatic transmission torque converter plates flywheels, so there is some confusion.

The only externally balanced FE is the 428 and 410. FT engines use larger heaver front damper components and do not interchange.

All others in the FE Family use the same balancer flywheel and front drive components. For automatics you must make sure the flywheel is correct for the C6, never know what may be in there after this many years and swaps. Standard cranks are bored for the automatics torque converters hub to center it. If switching from a standard crank with pilot busing to auto the pilot bushing needs to be removed.

All engines require a harmonic damper, Inherent in all crank driven engines to dampen the vibrations of pistion being forced violently down the bore and crank harmonics..

If you purchase a flywheel (auto) for a 352 pre 68 you will get a COM plate.... Incorrect for the 360s later 74 C6 transmission. Plate matches engine and transmission. Not just the engine.

Garbz

 

So can I use the "flywheel" from my 74 360 auto C6 engine on my 67 352 if I remove the pilot bushing from the crank, without using the HB from the 360?

 

Jack, What part of no don't you understand, is it the n or the o or the space in between.

Someone tells you that both engines use the same crank and you still want to argue because you didn't get the answer like you wanted. You are not dealing with a chevy this time.


John

 

Jack

Yes in simple words.....The 360 C6 Auto plate will bolt to the 352 with no issues. The 360 plate may or may not have a reinforcement ring, and use the 360s plate bolts. Torque to Spec.

Remember to reinstall the engine trans plate......

If you can use the 360 harmonic and pulleys and they will typically have additional pulleys for more accessories. the early 352 may not... Just double check.

Garbz

 

Hey Jowilker, if I wanted any lip from you I would unzip my zipper, I told you already I don't need your help. What is your problem anyway???? Do you think just because you have over 14000 posts you are some kind of car god??? It sounds more to me like you spend more time on this forum insulting people and trying to talk to people like they are fools than working on cars, what did you have a bad day? Why don't you go home and kick your dog instead of giving me an attitude when I am obviously missing something here. What Chevy are you talking about??? I only own Fords. Couldnt think of anything else to say? Geeez, I am a member of over 10 forums and I have never seen anything like this. I only have a few posts on here, but you have single handedly made me think that everyone on here are as rude as you. What ashame. You tell me that the engine uses the same crank, yea this is coming from the same guy who all of a sudden starts telling me stuff about a pilot bearing and straight drive, what are you talking about, I never mentioned anything about that??? Do me a favor, and stop bothering me, you are getting in the way of people who are actually trying to help me out. Go be a hotshot 14000 poster in some other post I don't need your input

 

Jack

Yes in simple words.....The 360 C6 Auto plate will bolt to the 352 with no issues. The 360 plate may or may not have a reinforcement ring, and use the 360s plate bolts. Torque to Spec.

Remember to reinstall the engine trans plate......

If you can use the 360 harmonic and pulleys and they will typically have additional pulleys for more accessories. the early 352 may not... Just double check.

This is what I was looking for, Thank you very much Garbz and everyone else, people like you are what makes these forums great.