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Briggs and Stratton 8 hp power increase

This is a discussion on Briggs and Stratton 8 hp power increase within the Small Engines forums, part of the Tech Support Forum category. Just purchased a Toro Rear Engine Rider 8-32 with B/S 8 hp. Runs great but wish it had a little


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Old 04-14-2011, 04:08 PM   #1
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Just purchased a Toro Rear Engine Rider 8-32 with B/S 8 hp. Runs great but wish it had a little more power. How much additional hp could get I get with maximum overhaul, i.e., bore the cylinder, larger piston, and shaving head. Or ideally I would like to find a 12 hp but not sure if it would fit. Appreciate any info you can provide............

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Old 04-14-2011, 07:39 PM   #2
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Hi and welcome to TSF

I think I would check into a 10-12HP engine before I would try to soup up an 8 HP. Should not be that hard. Of course you may have to drill new mounting holes, match the electrical up.

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Old 04-17-2011, 08:02 AM   #3
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Unless you have "free" access to a machine shop and a buddy who can get you the parts at cost, trying to upgrade that engine would cost more than buying a new engine.
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