58 59 Pass 348 exc H L Cam 58 59 Corvette 62 68 Pass Corvette 327 exc H Per Sp H Per F l 63 68 Ser 10 thur 30 283 307 56121386 1 20 towh aud country extended shield AC 44S 14 l ll 1 Note 1 A R 49 55 2 Ton 1st Ser hot plugi coritirruous city oper 54 55 Pass 54 55 Comm 1l 2 Ton exc H D 57 59 All Corvette exc 348 58 Pass 348 exc HL Cam 3 2BC 58 Pass 3 2BC w I l L Cam 1st design 65 68 Ser 10 thru 30 327 5612002 1 20 cold plug H I operation AC 43 14 l llVl Note 1 A R 56 All Corvette 61 All 6 cyl exc Taxi 61 63 All 283 64 68 Pass 283 307 standard 57 59 All exc 348 1559493 1 20 hot plug continuous city oper AC 45 14 l l A R 56 All Corvette 61 All 6 cyl exc Taxi 61 63 All 283 64 68 Pass 283 307 standam 5759 All exc 348 56121371 1 20 hot plcrg contintious city oper extended shield AC 453 14 lvl V1 AR 58 Pass w H L Cam 348 exc 3 2BC 58 Pass 3 2BC w HL Cam 2nd design water crgzoled 59 Pass 348 ccld pltxtt HL oper 60 61 Pass H L Cam vv H Per Sp l lzPer 348 61 63 Pass 409 exc dual 4BC 64 68 Pass Corvette 396 409 4 427 5612241 1 20 hct plug city type dirving AC 43N 14 lVll l A R 59 Pass 348 60 61 Pass 348 exc HL Cam H Per Sp H Per 5612 240 nnrrnal service AC 44N 14 l ll l A R 63 Ser 10 thru 30 292 65 67 Pass w Sp H Per 396 427 Ei61l2Q23l5 1 20 normal service C 43N 14 l lVl A R 63 68 All 153 194 230 250 Ei61l2 6310 1 20 standard AC 46N 14 li ll l A R 64 618 Ser 10 thru 30 292 5612791 1 20 normal service AC C44N A R 66 69 Corvette 427 56131312 1 60 normal service vv alumrnum cyl head Only AC R43XL 8 69 All 230 250 56121826 1 60 normal service AC R46N A R 69 Ser 10 thru 30 350 556990 1 normal service AC CR43 A R 69 Ser 10 thru 30 292 5613313 1 60 normal service AC CR44N 6 69 Pass 32 7 5569634 1 55 normal service AC R 45 A R G9 All Corvette 307 350 55699 93 1 55 AC R 44 A R 69 Pass 396 427 exc H Per Sp H Per 56123121 AC R 4r ll i 8 69 Pass Corvette w H Per Sp H Per 396 427 69 Ser 10 thru 30 396 56124225 1 60 hotplug AC F l43l l 8 hen individual driving conditions warrant different heat range plugs may he used hy selecting higher type Nos for hotter and lower type Nos for colder plugs as necessary NOTE 1 l lay be used on prevous models using 14l llV plugs noi equipped with boots 2 271 GASKlEET Spark Plug Seat 41 48 All 155549 2 01 lilrgp l lZJ x Br 0 D 10 lVll I copper 6 38 40 All 49 64 All 56112328 01 9 6 l J x 2 gm OD 14lV l I chrome w retention dimple l l rl e l A R NOTE 1 Ream or remove internal projections when using on org reach plugs All All l55 547l5 01 14 lVlMl hrorrre less retention dimple A R 2 273 WRENCH Spar Plug 38 40 All 49 66 All Corvette 3708444 68 13 lien 4l g length 1 1969 CHEVRCILET iviotoe DIVISION GtEi lEEt i AL it lC tC RS CORPORATIONT REV 7 1 69 P 2 21 2 270 2 2