427 ENGINE ASSEMBLY 0 293 BOLT PIN Cylinder Head 66 69 All 427 4 3877668 24 44 long 4 O L raleed cross on top of head 4 66 69 All 427 4 3877669A R 36 short 2 J 0 L raised cross 66 69 All 427 4 685927A R 18 PIN u x 4 66 69 All 427 3894327 4 18 PIN special z LD x diameter 0 296 VALVE Inlet Refer to following Chart for Model Application NO TE See Dealer Price Schedule for applicable prices VALVE CHART Inlet STD 003 0 S 016 0 8 030 0 S 66 69 All w Sp H Per 427 3854808 3876813 3876814 3876815 66 69 All 427 exc Sp H Per 5263754 6253757 5253758 3931096 0 297 VALVE Exhaust Refer to following Chart for Model Application N0 TE See Dealer Price Schedule for epplicable prlces A VALVE CHART Exhaust STD 003 0 5 015 0 6 030 0 5 66 69 All 427 exc Sp H Per 3931006 3931097 393l088 3931099 66 69 All w Sp H Per 427 exc AI Head 3860002 3863185 3863186 0 303 SPRING SHIM Valve 69 All 427 exc Police H Per Sp H Per 3856860 15 2 05 w damper stripe of blue plus aluminum dk green purple or tan 66 69 Pass 427 3970627 16 2 50 Note 1 NOTE I When uelng 3970627 it ie necessary ro discard the valve spring cep and velve stern pil seel which were used with Ist design spdng 66 69 All 427 3875916 16 15 SHIM spring u D x l u 0 D x J thick 0 308 SEAL Valve Spring Cap 66 69 All 427 lst design 3866612 I5 37 valve stem oil inlet and exhaust Note 1 NOTE 7 Fur Ind design application see 3964264 Cep Assy Group 0309 0 309 CAP Valve Spring 66 69 All 427 1st design 3869809 16 44 inlet and exhaust 1 pg 0 D stamped T Note I V NOTE I Far Ind design application see 3964264 Cep Assy 69 All 427 2nd design 3964264 16 52 CAP ASSY w deflector Note 2 NOTE 2 Ist design vehicles required a cep and seel while Znd design vehicles require 3 964264 Cap Assy 0 310 KEY Valve Stem 66 69 All 427 3947880 32 14 green 4 0 333 ARM Valve Rocker with Adjusting Screw and Nut 66 69 All 427 6258611 16 3 65 inside rocker arm at pilot end 0 386 COVER ASSY GROMMET Valve Rocker Arm 66 All 427 67 All 427 exc Sp H Per A l R 68 69 All 427 exc S S Sp H Per 33B262R H 12 50 painted 66 69 All 427 exc Sp H Per 338261 L H 12 90 painted 67 All w Sp H Per 427 exc A I R 68 69 All 427 325174R l l 21 80 chrome 67 All w Sp H Per 427 3908923 L H 23 05 chrome aluminum head 67 All vv Sp H Per A R 427 3902390R H 23 05 chrome plate w aluminum head T i GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 t REV 4 77 0 us 0 293 0 386