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)