Difference in senior animal motor and a LO 206?

It's the same part numbers for all the parts except the ignition coil.
The big difference is that the Animal is not sealed.
The blueprinting rules for the Animal allow you to machine the deck for piston pop up to be as much as .005" and the head gasket surface to be machined so the suish area has a minimum of .011" and the area between the valves to be .319".
The fire ring head gasket is also legal and the minimum thickness can be .042".
You are allowed to use an aftermarket cam such as a Dyno An 001 or 002 or other brands that are equivalent. Max lift is s.257"
You are allowed to use a billet rod such as an ARC 6249, a World Formula Billet rod or equivalent. You can also refresh the bore to as much as a .035" oversize.
There have been gasoline and alcohol classes.
Here is an alternative that has proven to work very well.
It uses a LO 206 engine as a starting point but doesn't require any machine work and makes as much as 1 more HP than a blueprinted methanol Animal.
However if your cylinder is worn i'd suggest honing it out to use the .005" domed piston.
https://faster-motors-wi.myshopify.com/search?q=super+stock+kit
 
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It's the same part numbers for all the parts except the ignition coil.
 
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