Model 20

For over 20 years, Briggs & Stratton has worked with the Society of Automotive Engineers (S.A.E.) in providing power for their Mini Baja and Supermileage programs. Starting for the 2000 season the S.A.E. Mini Baja Program began using the Model 20 INTEK as their engine of choice, replace the Model 19 after 20 plus years as the workhorse...

Model Number I/C
Type 202400
Displacement 305
Bore 3.120
Stroke 2.438
Compression Ratio 8.0 to 1
Description Wrench / socket size Torque
A/C Support Screw (Cartridge) 3/8" 55 in-lbs (6.2 Nm)
A/C backplate (nuts to carb studs, panel & cartridge a/c) 7/16" 55 in.lbs (6.2 Nm)
Alternator (stator) 7mm 20 in.lbs. (2.2 Nm)
Armature 5/16" 25 in.-lbs (2.8 Nm)
Blower Housing 3/8" 85 in-lbs (9.6 Nm)
Carburetor Studs (to cyl head) E-5 90 in.lbs. (10.2 Nm)
Connecting Rod 5/16" 100 in.lbs(11.2 Nm)
Control Bracket to cylinder 3/8" 100 in.lbs (11.3 Nm)?
Crankcase Cover 13mm 200 in.lbs. (22.6 Nm)
Cylinder Shield 7mm 35 in.lbs. (3.9 Nm)
Flywheel 1 1/8" 110 ft-lbs (149.1 Nm)
Flywheel Fan 13mm 60 in-lbs (6.8 Nm)
Fuel Tank 3/8" 95 in-lbs (10.7 Nm)
Governor Nut 3/8" 40 in.lbs (4.5 Nm)
Head Bolts 13mm 220 in.lbs (25.0 Nm)
Muffler Bolts (exhaust Port) T40 / QGS 12mm 165 in-lbs (18.6 Nm)
(bracket) 3/8" 120 in-lbs (13.6 Nm)
Muffler Guard 5/16" 30 in.lbs (3.4 Nm)
Muffler Deflectors 30 in.lbs (3.4 Nm)
Oil Drain Plugs 3/8" Square Drive (internal) 125 in.lbs.(14.0 Nm)
Oil Fill plugs 40 in-lbs (4.5 Nm)
Oil Fill Tube 5/16" 20 in-lbs (2.3 Nm)
Oil Minder Electronics Box 10mm 40 in-lbs (4.5 Nm)
Oil Minder Float 5/16" 30 in-lbs (3.4 Nm)
Rewind 5/16" 30 in.lbs (3.4 Nm)
Rocker Arm 8mm 100 in.lbs. (11.2 Nm)
Rocker Arm Adjustment Screw T-40
Rocker Arm Lock Nut 13 mm 60 in.lbs (6l6 Nm)
Spark Plug 5/8" mm Deept 180 in.lbs (20.0 Nm)
Starter Guard 7mm 25 in-lbs (2.8 Nm)
Starter Motor 13mm or T-40 140 in-lbs (15.8 Nm)
Starter Thru Bolts 5/16" 50in.lbs (5.6Nm)
Valve Cover 3/8" 55 in.lbs. (6.2 Nm)

We are using the Model 20 in the Baja buggy competition and I was wondering where to find the more detailed specifications, specifically interfacing to the "kill switch" which we wan mounted on the dash.

Asked by: Russ_P
Unfortunately, per SAE rules, we are restricted as to the information we can provide you. This is so as not to provide a competitive advantage to any one group for SAE Mini Baja. The following links should help: http://students.sae.org/competitions/bajasae/ Our site does have box dimensions: http://www.briggsandstratton.com/us/en/engines/racing-engines/model-20
Answered by: Nicole_BriggsStratton
Date published: 2015-05-26

can someone mail me complete specification of this engine

Asked by: Abhinay
All the specifications available are located on the specs tab under this product.
Answered by: Nicole_BriggsStratton
Date published: 2015-05-26

What horsepower is the model 20 briggs motor? I know you switched to torque, but I want to know the HP. 

Asked by: I want a go kart
I am sorry but since we only have torque on this specific engine we do not convert it. Also our engine are for use only in sanctioned racing events, not recreational vehicles such as go karts.
Answered by: Nicole_BriggsStratton
Date published: 2015-05-26

Hello, I'm looking to replace my mini bike engine with a newer model. How many CC's is dose this engine have?, and will it be a good idea to put it in a mini bike?  Thanks for Your Time!!

Asked by: Buddy14
To locate any information on your engine, you will first need the model type and code. Please see the following link for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Tracey_BriggsStratton
Date published: 2015-05-26

Hi, What´s the capacity of the oil tank? (Model 20)

Asked by: blelevier
To locate any information on your engine, you will first need the model type and code. Please see the following link for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Tracey_BriggsStratton
Date published: 2015-05-26

How can we make a briggs stratton engine

Asked by: SAM23
Briggs & Stratton engines are only made at our authorized factories. We do not give out details on how to manufacture them.
Answered by: Nicole_BriggsStratton
Date published: 2015-05-12

What are the measurements for the mounting plate? Hole diameter, spacing from center to center and edge to edge? I an trying to design a box to hold this engine for SEA BAJA and I can't find the dimensions anywhere. Please help. Thank You

Asked by: MJAlantico
We are limited on the information we can provide for the engine in the SAE Baja competitions. Please contact SAE for all the specs.
Answered by: Nicole_BriggsStratton
Date published: 2015-05-26

Can this motor be converted from pull start to an electric push button or ignition start easily?

Asked by: fightforfreedom742r
It may be possible to add electric start to your engine, for this type of a modification we recommend that you work with a local authorized dealer in your area. They will be able to physically see the engine to determine which parts you will need to make it work if possible. You can locate a local dealer here: http://bit.ly/14yWuSi
Answered by: Kaylin_BriggsStratton
Date published: 2015-05-26
  • 2015-05-27T07:23CST
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