PRODUCTION Sport coupe- 134,491 Rally Sport coupe- 11,902 Type LT coupe- 65,635 Type LT Rally Sport coupe 5,696 Z28- 54,907 Total production- 272,631 ENGINE CODES 250-105 L22 CCH,CCJ,CCK 305-145 L63 CTH mt CEM th CTK TH with smog pump 350-170 LM1 CHR mt CHF th CHL th with smog pump 350-185 LM1 CHC 4 speed Z28 CHS th 1978 was a comeback year for the Camaro. Chevy took some styling cues from Pontiac with their popular Firebird and put soft nose and rear sections on the car. It was a hit on the street, and sales soared. The Z28 which had been a late year reintroduction for 1977, now went into full production, and it sold well. T-tops were now a factory option. California emission Z28s were not available with manual transmissions. 1978 OPTIONS #MADE AK1 Color keyed seat belts 96,221 AN6 Adjustable seat back 23,443 AU3 Power door locks 31,956 A01 Tinted glass 233,115 A02 Tinted windshield 6,568 A31 Power Windows 51,008 BS1 Quiet sound group 7 B3W Advance price sheet 23,760 B37 Floor mats front and rear 126,900 B80 Roof drip molding 111,904 B84 Body side molding 136,724 B93 Door edge guards 79,002 CC1 Removable roof panels 9,875 CD4 Intermittent wipers 32,558 C50 Rear window defroster 95,225 C60 Air conditioning 194,584 D35 Sport mirrors (included with Z28, RS, and LT) 121,628 D55 Console 261,955 D80 Rear spoiler (included with Z28 & Rally sport) 44,609 F41 Performance suspension (included with Z28) 33,920 G80 Positraction 32,834 G92 Performance ratio axle 1,878 J50 Power Brakes 207,393 KO5 Engine block heater 4,917 K30 Cruise control 46,800 LG3 Engine 305-145hp 2bbl V8 143,110 LM1 Engine 350-170hp 92,539 (non-GM sources specify 185hp in US Z28, 175hp in CA Z28) L22 Engine 250-105hp 1bbl I6 36,982 MM3 3 speed manual 6,667 MM4 4 speed manual 11,287 MX1 Automatic transmission 239,559 M21 4 speed close ratio (Z28 only) 15,118 NA6 High alt. emission 1,436 N33 Tilt steering 117,035 N65 Stowaway spare (mandatory with T-tops) 30,440 PE1 Custom wheel (14x7) 17,658 PO1 Wheel cover 14,642 QBT FR78-14 (P205/75R14) white letter tires 44,370 QDV FR78-14 (P205/75R14) blackwall tires 12,387 QDW FR78-14 (P205/75R14) white stripe tires 144,878 QEG E78-14 bias tires-blackwall 2,951 QEH E78-14 bias tires-white stripe 13,138 QGR P225/70R15 white letter tires (Z28) 2 QRZ GR70-15 white letter tires (included with Z28) 54,905 UA1 Heavy duty battery 26,390 UM1 AM radio with stereo 8 track 10,074 UM2 AM-FM stereo radio with 8 track 32,156 U05 Dual horns 25,088 U14 Guage package (included with Z28 & LT) 15,976 U35 Clock 26,246 U58 AM-FM stereo radio 32,477 U63 AM radio 74,376 U69 AM-FM radio 35,838 U76 Windshield antenna 74,814 U80 Rear speaker 28,940 VO1 Heavy duty cooling (included with Z28) 56,624 V92 Inflator stowaway spare delete 636 YF5 California emissions 33,911 YJ8 Aluminum wheels 23,794 ZJ7 Rally wheel 102,563 ZJ9 Auxiliary lighting 62,280 Z21 Style trim group 111,054 Z49 Mandatory Canadian base equipment modifications 19,314 Z54 Interior decor group 32,099 1978 COLORS Exterior Z28 Stripe (codes=?) Interior 11 White 55A (#2 gold) 11 White w/black 15 Silver orange, red, black 17,19 Black 19 Black orange, red, black, gold 24 Blue 22 Light Blue gold,dark gold,black,clear 44 Green 24 Bright Blue gold, dark gold, black 62 Camel 34 Orange-yellow orange, yellow, black 74 Carmine 48 Dark blue-green dark blue, blue, black 51 Bright yellow dark blue, blue, black, silver 63 Camel dark green, green, black 67 Saffron dark green, green, black, silver 69 Dark camel ? 75 Light red 77 Carmine Vinyl Top 11T White 15T Silver poly 19T Black 22T Light blue poly 44T Medium green poly 61T Camel beige 79T Dark carmine poly 1978 DIFFERENTIAL CODES (stamped on front of passenger side axle tube) Posi Non-posi 2.41 PS PJ 2.73 PU PA 3.08 PW PC 3.42 PY PE 3.73 PZ PF