72 lrig Eng 231325 2 81 40 HEAD w145 deg exh seats 4 88 70 Marine 455 Eng Low Comp 230515 2 l 1 95 SHIM cyl head 1 l964 lst type used with cast iron valve rocker arms E 2 1964 2nd type used with stamped steel valve rocker arms 3 Used on 1967 F85 Engines with serial Prefix W or 5W See Dealer Technical Bulletin 67 T 19 4 Used on 1967 FB5 Engines with serial Prefix 4Vlf or BW See Dealer Technical Bulletin 67 T 19 5 When replacing 1966 E4 67 original cylinder head it is necessary to rework power steering pump mounting bracket by adding a cutout for clearance to lront smog hole boss on cylinder head 6 When replacing Head also order 8 231004 spacers and l 404896 Head Gasket 0 269 HEAD ASSY ENGINE CYLINDER HEAD COMPLETE NOTE These head assemblies are complete with valves valve springs and rotators 70 350 Eng exc O A l 405584 2 99 95 HEAD ASSY 70 4400 O A l S T 405588 2 157 20 HEAD ASSY 70 4400 0 A l T H 406741 2 155 25 HEAD ASSY 70 455 Eng exc Perf Eng 405586 2 101 95 HEAD ASSY 71 3200 3500 4200 350 Eng 4 BC S T 409388 2 104 90 HEAD ASSY 71 3200 3600 350 Eng 0 A I 409392 2 163 05 HEAD ASSY 71 4400 O A I A T 409392 2 163 05 HEAD ASSY 71 350 Eng exc 0 A l 409386 2 104 90 HEAD ASSY 71 4400 exc 0 A 409389 2 1 11 35 HEAD ASSY 71 4400 0 A 409392 2 163 05 HEAD ASSY 71 455 Eng exc 4400 or v Tor 409390 2 108 20 HEAD ASSY V 71 Tor 408389 2 111 35 HEAD ASSY 71 455 Marine En Irrigation Eng 409389 Z I 11 35 HEAD ASSY 72 350 Eng 41 1 185 2 104 90 HEAD ASSY 72 455 Eng A T exc 0 A I Tor or Calif 411186 2 I08 20 HEAD ASSY 72 455 Eng S T or 0 A l 411187 2 1 I I 35 HEAD ASSY 72 455 Eng Tor Bt Calif exc S T 411188 2 1 I I 35 HEAD ASSY 0 283 GUIDE ENGINE INTAKE EXHAUST VALVE 49 64 Exc F85 or J88 1 569968 8 1 54 GUIDE int std slze 54 64 Exc F85 or J88 569970 AR 1 54 GUIDE int 010 0 5 l 54 61 Exc F85 581740 8 I 54 GUIDE Int std 2 grooves 6 I 63 F85 581741 8 I 54 GUIDE exh std 2 grooves 61 63 F85 581743 AR 1 54 GUIDE e th 01 I 0 5 3 grooves 62 64 Exc F85 or J88 585413 8 I 54 GUIDE exh std size 1 NOTE When Installing on 1949 51 models use 1952 installation tool J 5158 See Dealer Bulletin 53 W 61 0 289 g NK T GASKET PKG SHIM ENGINE CYLINDER HEAD OR VALVE NOTE For L5 Engine tune up gasket set see group 0 0lO 57 J 2 571271 2 1 38 GASKET 025 thick 57 Exc J 2 571287 Z 3 02 GASKET 050 thick 58 Domestic 1st type 1 571271 2 1 38 GASKET D25 thick 58 Domestic 2nd type 1 571287 2 3 02 GASKET 050 thick 59 88 Domestic 574898 Z 1 38 GASKET 025 thick 59 588 98 Domestic 575400 2 2 36 GASKET 050 thick 60 Domestic l 2 574898 2 1 38 GASKET 025 thick 80 Export 575400 2 2 36 GASKET 050 thick 80 88 Domestic 581288 2 3 13 GASKET 040 thick 61 63 F85 578813 2 1 08 GASKET 0Z0 thlok 61 64 Expert exc F85 or J88 3 581288 Z 3 13 GASKET 040 thick 81 64 Domestic exc F55 or J88 588040 2 1 38 GASKET l 0Z0 thick 64 65 V6 1 357869 2 1 49 GASKET 0 I 5 thick 64 67 330 Eng 4 391585 2 I 38 GASKET 020 thlck 65 67 400 425 Eng 381588 2 1 38 GASKET head 66 71 L6 3901015 I 3 18 GASKET head 67 F85 330 Eng 5 404896 2 I 54 GASKET head 68 72 V8 404896 Z 1 54 GASKET head 58 All 578181 1 20 30 GAKSET PKG valve grind 59 88 578140 1 16 90 GASKET PKG valve grind 59 88 98 578141 1 18 75 GASKET PKG valve grind 60 All 578140 1 16 90 GASKET PKG valve grind 61 82 Exc F85 581423 1 14 75 GASKET PKG valve grind 61 63 F85 581939 1 5 70 GASKET PKG valve grind 0l DSMO8lLE DIVISION GENERAL MOTORS CORFORATl0 0 269 0 289 cnn REV JAN 1972