70 All 454 exc Sp H Fer Police 3981808 1 312 75 70 Police 454 3981810 1 312 75 i 70 All w Sp H Per 454 3981806 1 360 50 NOTE 1 When using on models with A T it will be necessary to remove clutch pilot bearing from crankshaft NOTE 2 The Valve Spring and Damper Assy unitized in this assy must be used in conjunction with the camshaft of this Asm NOTE 3 May contain Notlular iron Type Crankshaft lt is necessary to install a harmonic balancer on vehicles which do not have an existing balancer NOTE 4 lt may be necessary to either transfer five bearing cap bolts or bearing cap studs NOTE 5 Some early 1968 passenger models use 1967 engines These will meet 1968 spec except as follows Cylinder and Case Assy Conn Rod Assy Crankshaft Assy Main and Conn Rod Bearirigs Replaceable element Oil Filters by pass valve and related parts These can be identified by the oil filter 1966 use the throw away type oil filter Refer to the above 1967 components in their group NOTE 6 When using on models other than truck it may be desirable to replace camshaft gear with 3788508 to eliminate possible objectionable noise level NOTE 7 When using on models prior to 1968 it will be necessary to use 1968 Oil Pan Gasket Unit NOTE 8 1967 engines with date stamp F0619 thru end of production incorporate 1968 parts as follows Crankshaft Rear Bearing Oil Seal Rear Bearing Cap 0 1 Pan Gasket Refer to parts in their groups NOTE 9 On passenger models replace the four bearing cap studs with four 3864804 bolts NOTE 10 When using on 1968 models it is mandatory to use 3957985 Inlet Manifold Gasket Unit NOTE 11 When using on 1968 and past models it is necessary to remove the two dowel pins from front of case when transfering front end cover from replaced engine NOTE 12 These 2nd design 400 C l D assys are identified by the letter C preceding the existing suffix identification letters NOTE 13 Use with 1969 inlet manifold gasket 0 034 EXPANSION PLUGS Cylinder Block Also see 8 970 62 63 Chevy 444782 A l 1 10 cylinder oil gallery rr hole plug 18 thd sq socket 8 971 62 69 Chevy Chevelle Camaro 838538 AR 15 water jacket balance shaft hole cup type 1 62 69 Chevy Chevelle Camaro exc 8 cyl 70 All exc 8 cyl 3788418 A R 15 cyl head water jacket cup type dia 62 70 All exc 8 cyl 3789860 1 15 water jacket rear 2 0 D cup type 64 68 All 8 cyl exc 396 427 3738306 XR 40 square socket water jacket hole 1 65 70 All 396 400 w 4BC 409 421454 3743389 11 15 water jacket hole cup type 1 O D 65 Pass 409 3736407 4 05 oil holes cup type Vi O D 1 531 65 Pass 396 444776 9 15 oil gallery Vi 0 L x VN 0 D 8 971 65 70 All 396 400 w 4BC 427 454 3864810 4 15 l square socket cast iron heads 70 All exc 8 cyl 3835577 8 05 cyi and case main oil gallery front hole 2 O D cup type 0 056 BOLT STUD Crankshaft Bearing Cap 62 68 Chevy Chevelle exc 396 65 Pass exc 409 66 68 Pass exc 396 427 69 70 All exc 8 cyl 3872781 A R 20 7 14 x 3 65 70 Chevelle w H Per Sp H Per 396 454 65 70 Pass w Sp H Per 396 427 454 68 70 Camaro w Sp H Per 396 454 inboard 65 70 Pass 396 400 w 4HC 427 454 exc Sp H PenL 66 Chevelle 396 67 70 Chevelle Camaro 396 400 w 4BC 427 454 exc Sp H Per 3909834 A R 25 cap 3 l z long x 1 thread length 65 Pass 409 3828570 6 20 M 13 x SV 65 70 All w H Per Sp H Per 396 421454 3859927 10 20 outboard 2 M long x thread 69 70 All 302 307 327 350 400 w 2BC 3932460 10 20 V 14 x 3 Vu 70 All w 4BC 350 70 All w 2BC 400 3877669 6 20 ZV O L 0 293 64 Chevelle 6 cyl 66 Chevy w Sp H Per 327 10 STUD No 6 brg cap 67 68 Camaro 302 3872718 A R 95 right V 14 16 x SW 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATl0N P A 30A 0 033 0 056 0 8 REV 2 71