In 1960 General Motors introduced a new designation for its truck models. The Chevy 20 was a 3/4 ton model with a range of engines to choose from. The most popular was the 150 hp (112 kW) 261 in³ (4.3 L) straight 6 chevy 20 engine. The chevy 20 engine was durable and dependable and many original owners have passed these fine vehicles onto their children and grandchildren.The Chevy engine has proven its value time and again,with consumers placing it at the top in popularity for its class and size. While newer and bigger engines have come along, the 4.3L straight 6 engine never really faded from popularity. Even today these engines are still on the road and the 60's versions are being restored by collectors all over the country. Nearly half a century later, Chevrolet's reputation for durability rests solidly on the foundation built by these early chevy engines.

The available engine options for the 20 Pickup are:


• A.T. 4x4 TH700 gasoline
• A.T. 4x4 TH700 diesel
• A.T. 4x4 TH400 8 cyl gasoline
• A.T. 4x4 TH400 8 cyl diesel
• A.T. 4x4 TH400 6 cyl
• A.T. 4x4 TH350
• A.T. 4x2 TH700 gasoline
• A.T. 4x2 TH700 diesel
• A.T. 4x2 TH400
• A.T. 4x2 TH350
• M.T. 4 spd
• M.T. 3 spd 4x4 Muncie
• M.T. 3 spd 4x4 Saginaw
• M.T. 3 spd 4x2 HD
• M.T. 3 spd 4x2 std duty Muncie
• M.T. 3 spd 4x2 std duty Saginaw
• 8-454 (7.4L) w/o EGR
• 8-454 (7.4L) EGR (VIN "W")
• 8-400 (6.6L) w/o EGR
• 8-400 (6.6L) EGR
• 8-350 (5.7L) w/o EGR
• 8-350 (5.7L) EGR
• 8-305 (5.0L)
• 6-292 (4.8L)
• M.T. 4 spd New Process
• M.T. 4 spd Muncie
• M.T. 3 spd HD
• M.T. 3 spd std duty Saginaw 4x4
• M.T. 3 spd std duty Saginaw 4x2
• M.T. 3 spd std duty Muncie 4x4
• M.T. 3 spd std duty Muncie 4x2
• A.T. (4x2) TH700 gasoline non-ECM equipped
• A.T. (4x2) TH700 gasoline ECM equipped
• A.T. (4x2) TH700 diesel
• A.T. (4x2) TH400
• M.T. (4 spd) top cover 4x4
• M.T. (4 spd) top cover 4x2
• M.T. (4 spd) side cover 4x4
• M.T. (4 spd) side cover 4x2
• A.T. 4x2 TH700 gasoline non-ECM equipped
• A.T. 4x2 TH700 gasoline ECM equipped
• A.T. 4x2 TH400 exc. 6-262
• A.T. 4x2 TH400 6-262 (4.3L)
• M.T. 4 spd 4x4
• M.T. 4 spd 4x2
• M.T. 3 spd Saginaw
• M.T. 3 spd Muncie 4x4
• M.T. 3 spd Muncie 4x2
• A.T. TH400 big block
• A.T. TH400 small block
• A.T. Powerglide
• 8-400 (6.6L)
• M.T. 3 spd std duty
• M.T. 4 spd top cover 4x4
• M.T. 4 spd top cover 4x2
• M.T. 4 spd side cover (OD) 4x4
• M.T. 4 spd side cover (OD) 4x2
• M.T. 3 spd (4x2)
• 8-454 w/o EGR
• 8-454 EGR (VIN "W")
• 8-350 w/o EGR
• 8-350 EGR
• 8-307 w/o EGR
• 8-307 EGR
• 6-250
• 8-327
• 8-283
• 6-230
• 8-396
• 8-307
• 8-396 late (8-402)
• 8-396 early
• 8-350
• 8-400 (8-402)
• 8-400
• 8-454 (7.4L) EGR (VIN "S")
• 6-250 (4.1L)
• 8-454 (7.4L, VIN "W")
• 8-400 (6.6L, VIN "R" & "X") w/o EGR
• 8-400 (6.6L, VIN "R" & "X") EGR
• 8-305 (5.0L, VIN "G")
• 6-292 (4.8L, VIN "T")
• 6-250 (4.1L, VIN "D")
• 8-305 (5.0L, VIN "F", "G" & "H")
• 8-379 (6.2L, diesel) AT w/o EGR (VIN "J")
• 8-379 (6.2L, diesel) AT EGR (VIN "C")
• 8-379 (6.2L, diesel) MT w/o EGR (VIN "J")
• 8-379 (6.2L, diesel) MT EGR (VIN "C")
• 8-350 (5.7L, VIN "L", "M" & "P") w/o EGR
• 8-350 (5.7L, VIN "L", "M" & "P") EGR
• 8-305 (5.0L, VIN "F" & "H")
• 8-350 (5.7L) VIN "M"
• 8-350 (5.7L) VIN "L" Fed
• 8-350 (5.7L) VIN "L" Calif
• 8-350 (5.7L) VIN "K" (LPG)
• 8-305 (5.0L) Fed (VIN "H")
• 8-305 (5.0L) Calif (VIN "F")
• 6-250 (4.1L, VIN "D") w/o ECM
• 6-250 (4.1L, VIN "D") ECM
• 8-305 (5.0L) Calif (VIN "F")
• 6-262 (4.3L, VIN "N")
• 8-454 (7.4L, EFI, VIN "N")
• 8-350 (5.7L) EFI (VIN "K")
• 8-350 (5.7L) 4BC (VIN "M")
• 8-305 (5.0L, VIN "H")
• 6-262 (4.3L, VIN "Z")
• 8-454 (7.4L) EFI (VIN "N")
• 8-454 (7.4L) 4BC (VIN "W")
• 8-379 (6.2L, VIN "J", diesel) AT
• 8-379 (6.2L, VIN "J", diesel) MT
• A.T. (Powerglide) 8 cyl
• A.T. (Powerglide) 6 cyl
• A.T. TH400
• M.T. 4 spd Muncie 4x4
• M.T. 4 spd Muncie 4x2
• A.T. TH350 4x4
• A.T. TH350 4x2 w/o multifit case
• A.T. TH350 4x2 multifit case
• A.T. 4x4 (TH350)
• M.T. 3 spd 4x4
• M.T. 3 spd 4x2 Saginaw
• M.T. 3 spd 4x2 Muncie
• M.T. 3 spd 4x2 top cover (Tremec)
• M.T. 3 spd 4x2 side cover (Saginaw)
• A.T. 4x4 TH400
• A.T. 4x4 TH350 8 cyl
• A.T. 4x4 TH350 6 cyl
• A.T. 4x2 TH350 w/o lock-up converter
• A.T. 4x2 TH350 lock-up converter
• M.T. 4 spd side cover (OD)
• A.T. 4x2 TH700 gasoline non-ECM equipped
• A.T. 4x4 TH700 gasoline w/o aux valve body
• A.T. 4x4 TH700 gasoline aux valve body
• A.T. 4x4 TH400 gasoline
• A.T. 4x4 TH400 diesel
• A.T. 4x2 TH700 gasoline ECM equipped w/o auxiliary valve body
• A.T. 4x2 TH700 gasoline ECM equipped auxiliary valve body
• A.T. 4x2 TH400 8-454 (7.4L)
• A.T. 4x2 TH400 8-379 (6.2L, diesel)
• A.T. 4x2 TH400 8-350 (5.7L)
• A.T. 4x2 TH400 8-305 (5.0L)
• A.T. 4x2 TH400 6-292 (4.8L)
• M.T. (4 spd) (4x2)