We are replacing head gaskets on kohler command 25 68500,what are the torque specs for head and intake gaskets?

Kohler engine service manuals are available, free download, from the Kohler website.

https://kohlerpower.com/en/engines/products/fuel-type/Gasoline+Engines

Dwayne, the third link talks about the signs and test for leaking head gasket. Check the attached links,instruction and guides, Good luck
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blown head gasket on kohler command pro 25 horsepower
How to replace head gasket on Kohler command
Legacy Kohler engine leaky head gasket repair

Go here and look up your engine model
Owners Service Manuals

Here is a Manual for the Kohler Command Pro CV26
http://www.kohlerengines.com/onlinecatalog/pdf/24_690_02_EN.pdf

The picture shows the torques of the Kohler Command Pro

Head gasket blown. This is a very common issue with these V twin Kohler engines. There is a kit you can order from Kohler that includes gaskets and new improved head bolts. Simple hand tools is all that is needed. You will need an inch pound torque wrench. Torque specs are included in the kit.

If it is a V twin Kohler engine, you may have a blown head gasket. It is a common issue. Great engine but has this one issue. Kohler has a head gasket kit with improved head bolts. Torque specs are included. You will need a inch pound torque wrench and common hand tools.

Buy a gasket kit for the upper end. Remove the valve cover intake and exhaust manifolds. Remove the head bolts. Remove head and clean up block from old gasket material. Take the head to a machinist and make sure that it is not warped. If it is warped either replace the head with a new one or have it machined true. Install new gasket and get torque specs with new head bolts and follow torque sequence using the correct torque specs. Clean exhaust, intake and valve cover of old gaskets. install new gaskets and torque according to specifications.

(step 1 ) the torque specs for the heads are---1998 through 2001 are 37 foot lbs. ( step 2) rotate an additional 90-degrees (1/4 turn). intake manifold bolts ( lower ) step 1-- 62 in-lbs, step 2--115 in-lbs. intake manifold bolts/studs ( upper ) 18 ft-lbs. this is for the 3.1 v-6, have a good day!

I use 150 ft lbs on my racing 2-cycle engines, tighten in a star pattern.

never have used a torque wrench to install toilet tanks. Put gasket on tank and insert bolts with rubbers washers through gasket and set tank on bowl in a level and straight postion and start nuts tightening them evenly until tank starts to snug to bowl. Hand tight is usually sufficient, you will see the rubber gasket and washers will compress to bowl and tank forming a seal (EVENLY) and tank will be firm to bowl. DO NOT superman torque these nuts! Compare the torque to finger strength on a wing nut. Hope this helps ,"if I understood the question."