55 56 ALL CORV 8 cyl 4 2 ton to 9 1 55 4 371l846 B1 5 50 275 55 56 UTIL 8 cyl exc 1 TON 56 1 lg TON 8 cyl hvy duty 2 ton utter 9 1 55 37338791 1 5 30 265 56 1PASS CORV w dual 4BC w large ports 37341161 1 5 50 275 57 58 ALL CORV 8 cyl exc 2 TON 348 37527581 1 5 80 290 57 58 2 TON 8 cyl 3752757 1 5 80 290 58 PASS 348 exc H L Com 3752334 1 5 50 275 58 1PASS w H L Cum 348 3764393 1 5 50 275 37 49 ALL 5 53 ALL 216 GASKET 3835465 1 2 00 100 50 52 ALL 235 GASKET 3835562 1 2 00 100 53 58 ALL CORV 6 cyl exc 261 GASKET 3701296 1 2 05 103 54 57 ALL 261 GASKET 3836107 1 2 20 110 55 58 ALL 8 cyl exc 348 GASKET 19 OL 3748768 2 95 48 58 PASS 348 exc H L Com w water cooled plugs GASKET 20 11 OL 3732792 2 95 48 58 PASS 11 1 Com w woter cooled plugs 348 GASKET 20Y 3758383 2 95 48 58 Ser 6 6 cyl GASKET 27lg O L 3750625 1 2 20 110 NOTE Consists of gaskets for cylinder heads rocker covers 1nto1lce ond ex1t1m 1st manifolds carburetor distributor c1ir cleaner and wuter outlet QJNOTE 1 Vhen used 0 1 trucks use tlc 11gea gosket 3733281 VNOTE Units consist ot cylinder bend rockor cover push rod cover r11 1nii 1l 1 exhaust pipe po ckinq wuter outlet gClS1 llS NOTE Previously released in 1959 P S1 A 39 0 293 BOLT Cylinder Head 34 ALL exc DC 35 58 ALL CORV 6 cyl long 1 15 13 x 41 E liner or circle on hd 3835743 A R 40 2O 37 58 ALL COHV 6 cyl short 13 x 31 Q l111e2s or circle on hd 3835744 A R 30 15 55 58 ALL CORV 8 cyl exc 348 short 1 14 x 1 1 3704796 16 15 6 45 55 58 ALL COHV 8 cyl exc 348 long 7 14 x 3A Q C 1 C1t O l top of hecxcl 3741278 18 15 8 55 58 ALL 6 cyl L 13 11 41 d1 il1ec1 3764578 1 50 25 57 58 D D 2 TON short fri 11 11 MQ 1 4 Z 4 x 4 IL 3741531 1 1 50 90 58 PASS 348 1on 1 g 14 x 4 3735721 20 30 15 58 PASS 348 short 7 Q 14 x 5111 3735722 16 20 10 NOTE Required when any 1959 6 cyl block or short motor is insatollecl i r1 1955 58 models Reduces lull pressure oilinq to 1 estrf1cte l flow Also requires PLUG 376457 S in group 1 53 ot right hand center bolt lo 11ic n 1 296 VALVE Inlei 35 40 ALL w one groove stem hd murlced lN 838437 6 1 30 65 41 49 ALL 50 53 ALL 216 w two groove stem flat liiocufl 36880651 6 1 30 65 50 52 ALL 235 w two groove steam 11 z lit 3835519 6 1 30 65 53 ALL COHV 235 54 58 ALL CORV 6 cyl w two 1QI O V S1 lKI1 1 fl l11 3695455 6 1 45 73 55 56 ALL CORV 8 cyl exc dual 4BC 57 58 ALL CORV 8 cyl exc H L Cum 348 Ser 6 two groove stem l gg dim heudl 3703920 8 1 45 73 56 PASS CORV w duc114BC 57 58 PASS CORV w H L Com exc 3 2BC STD 3730860 8 2 10 105 55 56 ALL CORV 8 cyl exc ducxl 4BC 57 58 ALL CORV 8 cyl exc H L Cum 348 Ser 6 003 2 5 E l l13 1 DGd 3 3715622 8 1 75 88 56 PASS CORV w duul 4BC 57 58 PASS CORV w H L Cum exc 3 2BC 003 C S s1tc1 1nped 3 3734975 8 2 40 120 55 56 ALL CORV 8 cyl exc duo 4BC 57 58 ALL CORV 8 cyl exc H L Com 348 Ser 6 015 O S t mped 15 3715623 8 1 75 88 56 PASS CORV w duul 4BC 57 58 PASS CORV w H L Com exc 3 2E C 015 O S stc11cr1ped 15 3734976 8 2 70 135 55 56 ALL COHV 8 cyl exc dual 4BC 57 58 ALL CORV 8 cyl exc H L Conn 348 Ser 6 030 O S stumped 30 3715624 8 1 75 88 nn nsviszu JANUARY 1 1959 167 289 296