Chevy Truck Engine Specifications, RPO Codes, Horsepower, Displacement, Torque Ratings, - Chuck's Chevy Truck Pages.com

ENGINE SPECS, RPO CODES, HP, TORQUE, BORED OVER DISPLACEMENTS TOO



*RPO CODE SIZE/CONFIGURATION HP TORQUE (lb-ft) IN MODELS YEARS
LD4 250/I 6 105 185 K10,K20 73-78
LE3 250/ I 6 130 210 K 10 79-84
LB1 262/V6 155 230 K 10 85-86
LB4 262/V6(TBI) 155 230 V 10 87
L25 292 I 6 120 215 K20 73-86
LE9 305V 8 (non CA) 160 235 K 10 81-86
LF3 305/ V 8 (CA) 155 240 K 10 81-86
LG9 305/V 8 2BBL 130 240 K 10 81
LO3 305/V 8 (TBI) 170 260 V 10 87
LG8 307/V 8 (non CA) 130 220 K20 73
LS9 350/V 8 175 275 K10,K20 73-86
LT9 350/V 8 160 260 K20,K30 81-86
LO5 350/V 8 (TBI) 210 300 V10,V20,V30 87
LH4 379/V 8 DIESEL 135 240 K10,K20,K30 82
LH6 379/V 8 DIESEL 135 240 K10,K20,K30 83-87
LL4 379/V 8 DIESEL 246 K20,K30(OVER 8500GVWR) 82-87
LF4 400/V 8 185 300 K20,K30 75-80
LE8 454/V 8 230 360 K30 81-86
LT9 454/V8 (TBI) 230 385 V30 87

MOTOR SIZE BORE STROKE
I - 250 3.875" 3.53"
I - 292 3.875 4.12
V8 - 305 3.736 3.48
V8 - 350 4 3.48
V8 - 400 4.125 3.75
V8 - 454 4.250 4



V-8 MOTOR SIZE BORED .030 OVER BORED .060 OVER
305 310.11354 cu. in. 315 cu. in.
350 355.11595 360.42273
400 406.77494 412.1771
454 460.39267 466.86937

*RPO stands for Regular Production Option. That means an option available from GM when the truck was new. Almost everything has an RPO code. You can find a list of RPO's here.

NOTE: Horsepower and Torque figures are straight out of a GM Factory Service Manual.

GM Light Duty Truck Service Manuals cover the following models: C/10, C/20, C/30, K/10, K/20, K/30, P/10, P/20, P/30. (C= 2wd pickups, cab n' chassis, and Blazer / Suburban, K= 4wd pickups, cab n' chassis, and Blazer / Suburban, and the P model line is Chevy Vans. GM considers anything 1 ton or under to be a "Light Duty" vehicle.


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