Jump to content

56 Series Group 31 Battery Conversion Close to Factory Looking

Group 31 Conversion?  

12 members have voted

  1. 1. Would you Convert to Group 31?

    • Yes functional and looks good.
    • No not factory.

Recommended Posts

This is how I did my group 31 conversion on a 1256.

Hammered the old tray flat, put a flat stock front and side on it with a hold down for the rear rod, then cut new lid down to 14" on hold down bolt centers.

Best I came up with was a 2 x 4 spacer cut down and painted black. Have to get a pic of that.

I am using 2/0 welding wire for cables and so far I am getting away with 1 battery in Michigan

Comparison info from specs found on internet and batteries avail at family farm and home:

L" W" H" CCA Volt $ notes

3EH 19.25 4.25 9.75 875 6 $95 in series you get 875 CCA

4EH 19.25 5 10 930 6 $128 in series you get 930 total CCA

31 12.9 6.75 9.27 1000 12 $145 1 battery gets 1000 CCA and less cables to keep up.






Link to comment
Share on other sites

Why not save all the trouble and use 2 12v 3EE batteries, no hammering battery trays flat, no cutting, no welding. 2 3EE looks stock, fits stock and cranks well. The fab work looks clean though. The extra effort to make a battery cover look and fit well is a bonus.

Link to comment
Share on other sites

We have been converting all our stuff over to the group 31 threaded stud as it is much nicer to have everything the same. Only two things we won't change have one or two 4D batterys in.

Unless its too small like the 230 etc.

Link to comment
Share on other sites

I like what you have done. It looks nice and clean and a good idea. What would be really nice is for one of those Asian fellers to build ccw gear reduction starter that could turn the engine 100 more rpm with less amps but that's just what I say. Tom

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...