Chevrolet small-block engine

The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. These include:

The first or second generation of non-LS Chevrolet small-block engines
The third, fourth, or fifth generation of LS-based GM engines
The Chevrolet Gemini small-block engine

GM engine timeline, 1980–present

			0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0
			1980s										1990s										2000s										2010s										2020s
Gasoline	Flat	4																										EJ
	Inline		OHV														Ecotec
			Iron Duke																Family 0
			CIH																				H									AZ
			G							Quad 4																ZZ						ZR
			Slant-4									A													S-TEC
			Starfire										Saturn													Atlas										MGE
			Family II																																			SGE
					Family 1
					122																																				L3B
													X					G
																		J
		5																							Atlas
		3	G											S-TEC
																			Family 0
																																				SGE
																																									E-Turbo
		6	Chevrolet
			Red	Blue				Black		RB30														Atlas
			CIH																			E-TEC
	V		Buick
			90°
			60°
																	54°											High Feature
																								H				J
																						Shortstar				High Value											Ecotec3
		16																								16
		8	Rocket											Northstar																												Blackwing
			Pontiac		High Technology
			Big Block
			Holden
			Cadillac															LS
			Small Block
Diesel				Detroit																				Duramax
			Oldsmobile
		6			Oldsmobile																			DMAX
	Inline																	M51																								Duramax
										Detroit 60
																														6H
		4																								JTD
																										RA								Family Z
					E																	Circle L
					Family II																										Family B
																																				A
																																				MDE
non-GM engines used in GM vehicles italicized			0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0
non-GM engines used in GM vehicles italicized			1980s										1990s										2000s										2010s										2020s

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