69 70 All w L P Gas 350 3957997 1 8 55 69 70 All Blazer 350 exc L P Gas 3957998 1 8 40 69 70 All Blazer 307 3957999 1 8 40 38 49 All 50 53 All 216 3835465 1 2 85 GASKET 50 52 All 235 3835562 1 2 95 GASKET 53 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3701296 1 2 90 GASKET 55 70 All Blazer 265 283 327 350 3830711 2 1 50 GASKET 63 All 261 3760990 1 3 10 GASKET 27V O L 63 64 Ser 10 D D G 10 4 cyl 3788520 1 85 GASKET 19 0 L 63 All 230 1st design 3825562 1 1 15 GASKET 63 All 230 292 2nd design 64 70 All Blazer 230 250 292 3901016 1 3 10 GASKET 65 All 153 3868830 1 2 70 GASKET 66 67 Ser 10 D D G 10 194 3886129 1 3 10 GASKET 28 O L 67 69 All 3 53 5116242 2 05 GASKET water hole cover 68 70 All Blazer 307 3911088 2 1 45 GASKET 68 70 All 396 3993890 2 1 45 GASKET 67 70 All 3 53 5116292 1 2 59 RING cyl head seal large 67 70 All 3 53 5116290 4 18 RING cyl head water seal 67 70 All 3 53 5121207 4 23 RING cyl head water hole seal 67 70 All 3 53 5116122 2 18 RING oil seal Not required in this group See group 3 304 5160037 13 RING NOTE 5 lt may be necessary to cut off the 6 locating tabs of the valve rocker cover gasket NOTE 6 lt may be necessary to cut out the center ribs from the exhaust part opening of the inlet and exhaust manifold gasket 0 293 BOLT COVER CUP NOZZLE PIN PLUG STUD Cylinder Head 38 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3835811 A R 55 long 13 x 4Vz raised circle on hd 38 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3835812A R 40 short 13 x 3 raised circle on hd 55 59 All 6 cyl 3764578 1 65 V 13 x 4V drilled Note 1 NOTE 1 Required when any 1959 6 cyl block of short motor is installed in 1955 58 models Reduces full pressure oiling to restricted flow Also requires Plug 3764579 in Group 1 531 at right hand center bolt location 55 70 All Blazer 265 283 307 327 350 3704796 16 20 short Vl 14 x 1 55 70 All Blazer 265 283 307 327 350 3734594A R 20 long V 14 x 3 circle on top of head 59 70 All Blazer 265 283 307 327 350 3767468 4 20 medium V 14 x 3 circle on top of head Note 2 NOTE 2 Use with cylinder head with cast in oil trough on outer edge 63 70 All Blazer exc 8 cyl 3 53 3788417A R 35 V2 13 x 3 V 68 70 All 396 3877668 24 35 long 4Vz 0 L raised cross on top of head 68 70 All 396 3877669 8 25 short ZVI 0 L raised cross on top of head 67 70 All 3 53 5121263 8 1 14 11 x GW 67 70 All 3 53 5136610 1 63 COVER water hole 67 70 All 3 53 2296781 1 4 50 CUP ether starting 67 70 All 3 53 5119293 4 38 NOZZLE water double jet 68 70 All 396 3894327 4 15 PIN special V2 I D x diameter 67 70 All 3 53 5130303 1 47 PLUG fuse 67 70 All 3 53 5154453 4 05 PLUG end 67 70 All 3 53 5151449 3 05 PLUG gov link adapt hole 66 67 Ser 10 w A R 292 exc D D 68 69 Ser 10 20 292 exc D D 69 Ser 30 w A I R 292 3834490 2 35 STUD No 1 2 front hole Vz 13 16 x 4 0 296 VALVE Inlet Refer to following Chart for Model Application NOTE See Dealer Price Schedule P A 26 for applicable prices VALVE CHART Inlet STD 003 0 S 015 0 S 030 0 S 41 49 All 50 53 All 216 3688065 i 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A Mi 0 289 0 296 0 10 REV 6 71