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Generic problem for all Chevrolet Impala Cars

I have a chevy 283 v8, I have replaced the...




By mattallen107 on Nov 03, 2009

" "
I have a chevy 283 v8, I have replaced the head gaskets however i dont know the tork sequence or spec to reinstall them, also the rocker bolt spec

Solution #1

posted on Nov 03, 2009
Not Rated)

over4dy

Rank: Wiz 
Rating: 80%, 60 votes
Copy & paste this link into your address bar: http://www.torkspec.com/torkspecme.aspx?KI=12-4.6L-283ci-V8
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Solution #2

posted on Nov 03, 2009
Not Rated)

wilsodfarm

Rank: Guru  Cars  Expert
Rating: 91%, 256 votes
Spark Plugs: 20-25 Cylinder Head Bolts: 60-70 Intake Manifold: 25-35 Exhaust Manifold: 18-22 Rocker Arm Shaft Bracket: none Rocker Arm Covers: 25 (inch/lbs) Connecting Rod Cap Bolts: 30-35 Main Bearing Cap Bolts: 60-70 Flywheel to Crankshaft: 55-65 Vibration Damper or Pulley: Pressed on
Comments:

Nov 03, 2009

- Operating Clearance:
w/mechanical valve lifters and two 4-barrel carbs: Intake: .012 Hot Exhaust: .012 Hot
w/hydraulic valve lifters and one carb: Intake: 0 Exhaust: 0
Valve Seat Angle, degrees: 45 Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
w/ mechanical valve lifters and two 4-barrel carbs: Intake opens: 35 BTDC Exhaust Closes: 31 ATDC

w/hydraulic lifters and one carb: Intake opens: 12-1/2 BTDC Exhaust Closes: 15-1/2 ATDC Valve Spring Pressure Pounds at Inches Length:
Inner Spring: 69 @ 1.696 Valve Lift Zero Lash: Intake: .398 Exhaust: .398 Stem Diameter: Intake: .3415-.3422 Exhause: .3410-.3417 Valve Stem Clearance: Intake: .001-.003; Exhaust: .0015-.003

Nov 03, 2009

- Spark Plug Make: AC 44 Spark Plug Gap, Inch: .035 Firing Order: 18436572 (front to rear left bank: 1-3-5-7, right bank: 2-4-6-8) Timing Mark: Second line before "0" on timing tab on front cover; Location: Damper Engine Idle Speed, RPM: 425 Compression Pressure & Cranking Speed: 150 min. Voltage & Polarity: 12 volts, negative ground
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