where do I find a new and better motor?

My '64 convert is getting better, but the engine remains questionable. Starts and runs well enough, powerful, but I think I hear a main bearing banging, the balance is not great and I'd like to upgrade to fuel injection if I can.

Are there dependable remans available of good quality? Are new crate engines available? Will more advanced engines from newer years fit?

Also, please, the diff ratio is quite high, lots of RPMs compared to today's cars. Are there diffs with lower ratios available?

Thanks,

JK

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Comment by Tony and Ginny 429 on May 26, 2018 at 1:37pm
The motor mount that Jason posted is just amazingly creative engineering genius
One of the best i have seen in a while
I want to know who this guy is ---LOL !!

Enjoy
Comment by Jason Edge on May 26, 2018 at 8:03am

Where there’s a will there’s a way!  This picture made me think of the motor mount changes between 64 & 65. As Tony would say .... enjoy!

Comment by john kilbourne on May 25, 2018 at 10:12am

I may be in luck staying original. It turns out there is a well-regarded machine shop near me, in Auburn, Maine, called RPM. It gets almost all raves on Yelp. If anyone knows different, please let me know. I plan to drop the car off there for a full engine evaluation. If I decide on a rebuild, I will stress smoothness, balance, any good custom tweaks. 

Comment by Russ Austin on May 25, 2018 at 8:48am

In 65 Cadillac went with a cross flow radiator. The outlet tube was on the opposite side of the radiator from the inlet tube.  The engine has a different designed water pump, as the inlet tube is on the opposite side as the 63/64.  This causes a change to the timing mark tab on the front engine cover. And since the timing  mark tab is moved, so must the mark on the harmonic balancer be moved.      With that all said, the 65 harmonic balancer can not be used on 63/64.

Comment by Tony and Ginny 429 on May 24, 2018 at 10:51pm
Would there be a problem setting the timing if you have a 65 harmonic balancer on a 429 - that is in the 64 car frame ( which is different than the 65 frame )
Would the location of the 64 frame design and steering pump prevent you from seeing the timing marks as you normally should or is the timing plate blocked from view in some way in that application ?
Has anyone put a 65-67 429 engine into a 64 frame --to know the answer ?

Enjoy
Comment by Jason Edge on May 24, 2018 at 10:34pm

If you decide to stay original, which I would recommend unless you have very deep pockets for something like a LS series GM engine, I have an excellent 429 short block, with the correct Turbo Hydramatic crankshaft, which you can see by Clicking Here.

NOTE: the 1963 390, and 1964 429's with the Hydramatic Crank is not a direct bolt in to your 1964 convertible with the Turbo Hydramatic transmission due to different diameter of the end raised area of the crank for the Hydramatic drive plate and the Turbo Hydramatic flex plate. For more information on their differences check out this Help Page article:
1963 & 1964 Engine and Transmission Facts

Comment by Russ Austin on May 24, 2018 at 8:52pm

The 6 429 is a 1 year only engine. The 63 will bolt right in, and looks identical, but it is a 390.  The 65 has a different front engine cover, and the radiator inlet is different. You would have to run a 65 radiator with a 65 harmonic balancer.  The engine mounts are in a different spot, so they will not line up with your frame mounts.

I say break in a rebuilt engine with the carb, and then install the EFI system.

Comment by Tony and Ginny 429 on May 24, 2018 at 1:40pm
I would stay away from a fuel injection intake on the 429 rebuild until you have the new engine running perfect with the stock set up
You are going to have --a new break in period --and you do not want to be playing with new complicated technology during this critical time that establishes the engine future longevity issues
A clean quick engine fire up -is always required with a new engine start up running the engine at 1000 RPMs for a short while to seat all metal parts

A very very knowledgable gentleman here named --Clovis has installed a fuel injection on his 64 429
He is having some issues with getting the system to work as it should
He has posted his entire adventure on this site
Trust me if Clovis ( our personal mechanical mad scientist ) is having issues with the system ( a FITECK system ) it is not a good sign most average guys will get this set up correctly
Clovis' last problem was getting enough fuel pressure at idle
Fuel injection requires a fuel pump in the gas tank --i think
He is working thru getting his system to perform on his 64 429
Part of the problem -is all the info -and options the the FI Tech system he is working with has available as feed back to the owner
Many are following his journey due to interest in the subject
If anyone can get this right i think it would be Clovis
He lives in Canada so the car is down due to the seasonal weather

Do review the threads here on the subject as there is a good deal of info on the subject
Clovis is only the second person on this site to go the fuel injection route i know of
Been here since 2006 --daily

Enjoy
Comment by Tony and Ginny 429 on May 24, 2018 at 1:10pm
The 64 429 is a unique 429 due to the cars frame design in 64
The cars frame and other physical changes made to the engine in 65 ( front aluminum timing chain cover and timing mark changed over to the opposite side of the 64 - rad hose location changed etc ) do not make the 65-67 429 a bolt in engine to the 64 cars
Best to rebuild what you have if a 64 and would be the simplest way to get an engine to work in the car without other modifications being required that require additional time and money to get her done
All the cars creature comforts will work off the stock rebuild unlike some other options you may have
Depending on your model car --only one of the two trans options in the year -will work behind the engine you now have based on the crankshafts physical size ( on the trans side of the engine )

All due respect always -but asking all the questions you have at one time can cause confusion as all posts are recorded for future reference
Best to keep it down to one or two questions to improve the end results

Enjoy
Comment by Anders on May 24, 2018 at 12:44pm

If my engine was not good I would rebuild it rather than buying an used one and hoping the problem would go away. Its like when having employees, you have an employee that lacks some training. You think about kicking him instead of spending money on re-training and instead hire a new guy. But you will never know enough about the new guy, he might be worse. So my advise 99 out of 100 times is to re-train the guy you know instead of buying a pig in a bag. Same advise works on engines and most stuff.

My plan if having to re-build my engine: Buy a set of parts from https://egge.com/kit/ca429m64-65/. Then buy a new fuel injection kit including pump from http://fitechefi.com/products/31003/

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