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360 based Stroker Crank Kit and Balance #2864856
12/26/20 11:26 AM
12/26/20 11:26 AM
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mississippi
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lostdog Offline OP
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lostdog  Offline OP
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I’m using mid 70’s 360 block. I will be getting steel crank, H beam rods, forged pistons and aiming for 11:1 compression - using 727 trans

Am I correct in assuming the “balance” now is relative to the new parts and not the block? I haven’t decided where I’m getting the kit but what I need to know is what balancer and flex plate I need to look for. Also, I will be using a crank trigger.

Re: 360 based Stroker Crank Kit and Balance [Re: lostdog] #2864866
12/26/20 12:20 PM
12/26/20 12:20 PM
Joined: Oct 2007
Posts: 4,206
New York
polyspheric Offline
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New York
Are you going to keep it externally balanced?


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Re: 360 based Stroker Crank Kit and Balance [Re: lostdog] #2864870
12/26/20 12:32 PM
12/26/20 12:32 PM
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PA
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maxwedge1 Offline
mopar
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yes the new combo will be balanced to your parts selection...would be your choice internal or external.
i purchased a mopar cast crank/eagle rod/diamond piston combo and went internal...the cast crank needed a few chunks of mallory to balance.

Re: 360 based Stroker Crank Kit and Balance [Re: lostdog] #2864876
12/26/20 12:44 PM
12/26/20 12:44 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
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W. Kentucky
I would buy the kit and have my machine shop do the balance work, then run whatever neutral balance damper and flex plate you wish. I have a Innovators West damper on my 434, they have an option to have the magnets for a crank trigger built in. I've kicked myself in the butt for not having it done to mine.

Re: 360 based Stroker Crank Kit and Balance [Re: maxwedge1] #2864877
12/26/20 12:47 PM
12/26/20 12:47 PM
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St. Paul , Mn.
tubtar Offline
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tubtar  Offline
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St. Paul , Mn.
I am doing a 4" crankshaft 360 deal right now..................Molnar crank and rods , Weisco pistons , had it internally balanced and it was a piece of cake.
Took weight out , no Mallory required.
Neutral balance ATI damper and MoPar performance flex plate.
I did not do it on this deal , but my last , I had the damper built with the G.M. / Chevrolet pattern on the front which opens up your options for crank trigger and pulley / drive mandrel selection.
The number of choices this opens up is VAST , and significantly cheaper.

Last edited by tubtar; 12/26/20 12:50 PM.
Re: 360 based Stroker Crank Kit and Balance [Re: lostdog] #2864946
12/26/20 03:10 PM
12/26/20 03:10 PM
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Bend,OR USA
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Cab_Burge Offline
I Win
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Bend,OR USA
The block is a piece of a cast iron that does not rotate so it has nothing to do with the rotating parts inside of it work
My message is you now have the ability to have your new parts balanced either externally or internally, the differences are in the harmonic balancer and torque converters you have to use, if you want to be able to swap converters later it is easier and safer to use a internally balance converter now instead of having to have another custom externally balanced converter made to fit your motor later work
You can use a standard neutral balanced harmonic balancer with a aftermarket externally balanced flexplate to use with internal balanced converters also , you have several different choices to be made now scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 360 based Stroker Crank Kit and Balance [Re: Cab_Burge] #2865031
12/26/20 07:49 PM
12/26/20 07:49 PM
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Posts: 361
mississippi
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lostdog Offline OP
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lostdog  Offline OP
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mississippi
Originally Posted by Cab_Burge
The block is a piece of a cast iron that does not rotate so it has nothing to do with the rotating parts inside of it work
My message is you now have the ability to have your new parts balanced either externally or internally, the differences are in the harmonic balancer and torque converters you have to use, if you want to be able to swap converters later it is easier and safer to use a internally balance converter now instead of having to have another custom externally balanced converter made to fit your motor later work
You can use a standard neutral balanced harmonic balancer with a aftermarket externally balanced flexplate to use with internal balanced converters also , you have several different choices to be made now scope


Yes, this is the information I need . Thanks, guys!

Re: 360 based Stroker Crank Kit and Balance [Re: lostdog] #2865095
12/26/20 10:37 PM
12/26/20 10:37 PM
Joined: Jan 2003
Posts: 1,908
Nebraska
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4406bbl Offline
top fuel
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Posts: 1,908
Nebraska
The eagle 4" steel, h-beam, Mahle piston combos are internal balanced, no Mallory, weight is removed from the crank. If you do not want a kit I would go eagle crank, small block chevy rods, Mahle piston so your block notching will be near zero.







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