View Full Version : 31hp Briggs Vanguard Big Block

08-16-2007, 04:40 PM
Is anyone using this motor? How is it working out for you?

08-16-2007, 06:22 PM
I have 2 on 72" Z decks and very pleased.

08-16-2007, 08:16 PM
yep... had mine about a year now and i cant say ANYTHING bad about it. i run mobile 1 fully synthetic in it, keep my air filter clean and havent had one problem with it. the engine simply does NOT kill. your blades will almost come to a complete stop before the governor kicks in.

08-16-2007, 10:04 PM
How economical is this motor on fuel? My dealer tells me his reps say the fuel injected Kawasaki gets about as good of mileage as the diesels. I am just curious what the big block does.

West KY Lawncare
08-16-2007, 11:13 PM
I have the 29 dfi on one scags turf tiger and the other turf tiger has the 31 big block and I can't tell any difference in fuel consumption. One account took about 6 hours of good running and they used about the same amount of fuel. I may have pushed the 29 a little harder than my wife pushed her 31 but the both used about the same amount of fuel. Main difference in the two is that one has a choke and the other does not. Both have lots of power!

08-17-2007, 12:40 AM
No problems here. Smooth, plenty of power, and uses a little more fuel than my 27 Kohler. I would buy another big block Briggs. They seem to be a tried and true preformer.

08-17-2007, 04:55 AM
Anyone have much to say about the 35 hp Briggs?

08-17-2007, 08:57 AM
Love my 31 on the 60" Lazer Z. Not a single problem with it.

08-17-2007, 09:36 AM
Are any of these big blocks water cooled?

Blessed 1
08-17-2007, 09:54 AM
I loved the 31 so much I went back and got the 35. The only problem that I had was the teeth on the oil pump sheared off after about 400 hrs on the 31hp and the warranty covered a new short block. Awsome performance!

West KY Lawncare
08-17-2007, 05:42 PM
Yes you can get them liquid cooled!