Author Topic: Briggs 31 Single Non-AVS OHV Upgrade Path  (Read 2423 times)

0 Members and 1 Guest are viewing this topic.

Offline Scott P.

  • Newbie
  • *
  • Posts: 55
  • Karma: 0
  • Gender: Male
    • View Profile
Briggs 31 Single Non-AVS OHV Upgrade Path
« on: January 29, 2015, 02:52:41 pm »
I am running a Briggs non-avs 31 single, I currently have a flywheel, new head w/ split locks, governor deleted, and the adjustable jet in the carb. What is the typical path you guys go with these things to get more power out of them.

I have been searching around but it seems like there are alot of different answers.

I will compile the information below:

Stage 1:
-Confirm you have split lock valve spring keepers
-Billet Flywheel
-Governor delete

Stage 2:
-Aftermarket rod
-Aftermarket cam & valve springs
-Balance crank

Stage 3:


Offline chavez

  • Turf Warrior
  • **
  • Posts: 186
  • Karma: 0
  • Gender: Male
    • View Profile
Re: Briggs 31 Single Non-AVS OHV Upgrade Path
« Reply #1 on: January 29, 2015, 04:26:07 pm »
Different camshaft than stock, performance mods to the carburetor. Better get a better rod too. No point in spending all your money only to have it blow up from losing a rod.

Travis Callaway

Offline leadslead

  • Mow-Forum Junkie
  • ***
  • Posts: 1628
  • Karma: 7
  • Gender: Male
    • View Profile
Re: Briggs 31 Single Non-AVS OHV Upgrade Path
« Reply #2 on: January 29, 2015, 04:34:00 pm »
Valve springs send cam to isky balenced crank
STEVE HENDERSON

Offline Scott P.

  • Newbie
  • *
  • Posts: 55
  • Karma: 0
  • Gender: Male
    • View Profile
Re: Briggs 31 Single Non-AVS OHV Upgrade Path
« Reply #3 on: January 29, 2015, 04:50:24 pm »
What about the EC cam? I have seen alot of people on the board say good things about them.

When upgrading the cam I know springs have to be replaced but anything else?

When upgrading the rod what do people typically do piston wise?

I will try to compile info up top for anyone else that sees this thread. Hopefully it will be helpful.