BJ8 (1966) Tuning & Torque Specifications

Valve Lash settings: .012 -.015 in. (.38mm)

Torque Settings (foot/pounds)

Cylinder Head Studs: 33-35

Cylinder Head Nuts: 75

Main Bearing Nuts: 75

Rod Bearing Caps: 50

Oil Pump to Block: 12-15

Oil Pump pick up 6-10

Flywheel: 50

Clutch to Flywheel 25

Bell Housing Bolts 35

Rear Mounting Plate Screws 50

Front cover screws: 10-12

Front mounting plate: 15-18

Rocker shaft bracket nuts: 25-27

Exhaust Manifold Nuts: 20-30

Cam Thrust Plate: � 13-16

Intake Manifold Nuts: 15-18

Intake/Exhaust Studs: 15

Spark Plugs: 18-28

Water Pump: 7-9

Alternator Bracket to Block: 30

Oil Pan: 5-8

Front Spindles 40-70 (allows for castlated nut position); shim for no end play

Steering box 15-20 on bolts; shim for no end play but no resistance in steering

Calipers 40-50 (should be at least grade 5 bolts)

Engine Firing Order 1-5-3-6-2-4

Compression Ratio: stock: 9:1; race: 10.5:1

Cranking Pressure: 205 lbs./sq.in.

Engine Idle: 500 rpm

Distributor Setting: 5� BTDC (Static); 15� BTDC @ 600rpm;
Max advance 34-38� BTDC @ 6400 rpm

Vacuum advance starts @ 5 in. Hg/ ends @16� @ 12in Hg.

Cam: Race: 6� BTDC (Static), 300� duration intake & exhaust;
.315 in. lift at cam; intake 50� BTDC/75� ABDC; exhaust 75� BBDC/45� ATDC

Sparkplugs: Champion UN12Y; gap .25 in.; Race: RN7YC4, gap .40 in.

NGK: BPRC8EVX, Platinum race

Knock offs From May 1964 on (BJ8 – 26705), 8 t.p.i.


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