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Need main bearing torque specs for: 426 7.0L Gen III Hemi - Aluminum block. And 6.4 Cast iron block.

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Do I really need to replace the end cap bolts on my k9k 1.5 DCI engine when I change the bearing shells or is it just best practice?


Not just a best practice. Any bolt that has been torqued and has been in service has an increased risk of catastrophic failure. Always replace them.

Aug 03, 2016 | Cars & Trucks

1 Answer

Torque settings for main and bigend bearings


First you need to know the diameter of the bolts and the type of thread ie 3/8 N/C or 5/16 N/F then look at the type of bolt ie plain steel or high tensile SAE grade 3, 4, or 6, once you know this go to a general purpose bolt torque chart, and derive the torque spec info.
If the engine block is cast iron use the full torque specification.
If the engine block is alloy then reduce the torque spec 10%

Below is an example of a general purpose bolt / nut torque chart

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May 03, 2016 | 2011 Ford Fiesta 1.4

1 Answer

What are the spark plug torque Specs on a 95 Honda Civic LX 1.5 liter.


Torque Chart - E3 Spark Plugs

e3sparkplugs.com/torque-chart/
The table below lists the torquing specifications for most spark plugs being installed in either cast iron or aluminum cylinder heads. Torque values assume clean, dry threads.

Tech Specs - Spark Plug Cross Reference, Torque ... - Autolite


Nov 25, 2015 | Honda Cars & Trucks

1 Answer

Is it necessary to torque the intake bolts when installing the intake manifold?


It is recommended as most intake manifolds are either cast iron or cast aluminum. Uneven torque can result in warping. Too little torque can cause intake leaks. Too much torque can cause cracking or breakage of the cast metal.

Nov 01, 2015 | Cars & Trucks

1 Answer

What is the torque specs for a v8 3.6 evinrude heads


Many torque specs can be transposed. the key is to know what other similar models are there. A torque speck is the safe limit to witch to tighten a bolt. so if you can find the similar torque on a similar engine that does not seem too high I would start there. if it is an all cast iron engine I would try 95 foot LBS but is it is Aluminum I probably would not go over 25. Just saying. the torque is also directly related to the compression of the engine and the compression is directly related to the octane required, if you are not required to burn high octane then you have a low compression engine and most likely a low torque speck and if it is an aluminum head and block the very more likely very low torque.
best of luck

Apr 12, 2015 | Cars & Trucks

1 Answer

What arm the specs for 95 camaro lt1 350


Block and Basics
Displacement: 350 cubic inches, 5733 cubic centimeters, 5.7 liters
Block Material: Cast Iron
Main Bearings: 2-Bolt Centers and Ends (The Corvette LT1/LT4 had 4-bolt mains)
Stroke: 3.48"
Bore: 4.00"
Compression Ratio: 10.4:1
Combustion Chambers: 54 cubic centimeters
Factory Redline Rating: 5700 Rotations Per Minute

Bottom End
Piston Material: (10159437) Eutectic Aluminum/Silicon Alloy
Connecting Rod Material: (10108688) Powdered Metal
Crankshaft Material: (12556307) Cast Iron

Top End and Valvetrain
Cylinder Heads: (10168448) Cast Aluminum, 2 valves per cylinder/16 valves total, ~212 CFM flow (Impala SS and Caprice heads were made of cast iron*)
Valve Diameter: (intake- 10241743, exhaust- 12550909) 1.94 intake, 1.50 exhaust
Valve Overlap: 41*
Valvesprings: (10206040) 85 lbs, seated
Camshaft Specs (12551705): 205/207 duration @ 50*, .447/.459" lift, 117 Lobe Seperation Angle
Rocker Arms: (10089648) 1.5:1 Stamped Steel
Timing Chain: (10128485) Powdered metal link

Intake and Fuel Delivery
Fuel Delivery: Electronic Fuel Injection, sequential port
Injector Size: (17124248) 3.0gps, 22lbs/hr speed density (1992-1993), 24lbs/hr mass airflow (1994-1997)
Throttle Body: 48 millimeter twin butterfly
Intake Manifold: (12552137) Aluminum

Factory Power Ratings
92-96 LT1 Corvette: 300bhp, 330lb-ft
1996 LT4 Corvette: 330bhp, 340lb-ft
1992 LT5 Corvette: 375bhp, 370lb-ft
93-95 LT5 Corvette: 405bhp, 385lb-ft
93-95 LT1 F-Body: 275bhp, 325lb-ft
96-97 LT1 F-Body: 285bhp, 325lb-ft
96-97 WS6/SS: 305bhp, 335lb-ft
93-97 Firehawks: 315bhp, 340lb-ft

Factory LTX Camshaft Specifications**:
1992 Y-body: 205/207 0.451/0.450 lift 117 LSA
1993-1995 Y-body, F-body: 202/207 0.450/0.460 lift 116 LSA
1994-1996 B-bodies (including L99 4.3L): 191/196 0.418/0.430 lift 111 LSA
1996 Y-body, 1996-1997 F-body: 200/207 0.447/0.459 lift 117 LSA
1996 Y-body, F-body LT4: 203/210 0.476/0.479 lift 115 LSA


hope this helps

Mar 04, 2015 | Cars & Trucks

1 Answer

Engine aluminum or cast iron?


it appears that the 2WD drive LT's have the iron block while the 4WD trucks have the aluminum block

Jul 12, 2014 | 2011 Chevrolet Silverado 1500

1 Answer

Need torque settings for the head bolts on a 1.6 ltr AE82 87 corolla


head bolts for iron cast heads is 65. for aluminum heads, its between 45-50. 1.6 AE82 is iron cast.

Aug 06, 2011 | Toyota Corolla Cars & Trucks

1 Answer

What is the torque spec's on a acura integra gs 90 motor ?


1990-1991 OBD0*
Engine: B18A
Cylinder Arrangement: Inline 4 Cylinders, Transverse
Type: Water cooled, 1.8L, 4 cylinder, 16 valve, DOHC
Displacement: 111.9 cu in (1834 cc)
Bore & Stroke: 3.19 in x 3.50 in (81mm x 89mm)
Compression Ratio: 9.2 : 1
Valve Train: Double Overhead Camshafts, Belt Driven
Fuel System: Programmed Fuel Injection (PGM-FI)
Horsepower: 130 hp @ 6000 rpm
Torque: 121 lbs.-ft. (16.8 kg-m) @ 5000 rpm
Redline: 6500 RPMs
Engline Block: Aluminum Alloy with Cast Iron Cylinder Liners
Cylinder Head: Aluminum Alloy

Jun 24, 2010 | 1990 Acura Integra Hatchback

1 Answer

2003 mazda 6 3.0 need the main bearing torque specs


I'm sending you the torque specifications for your main bearings and also your head bolts. I also sent you main bearing and cylinder head tightening sequence. I hope this will be useful2c713bf.giffce6623.gif
Main Bearings Torque specs. 40-43 Ft. Lbs.
Cylinder Head Torque specs. 56-60 Ft. Lbs.

Oct 05, 2009 | 2003 Mazda Mazda6

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