2006 DODGE RAM SRT-10 length

6. Use a drill, a fine grit Flex-hone and a mixture of
equal parts of mineral spirits and SAE 30W engine
oil to de-glaze the bores.
7. The crosshatch angle is a function of drill speed
and how fast the hone is moved vertically.
8. Vertical strokes MUST be smooth continuous
passes along the full length of the bore.
9. Inspect the bore after 10 strokes.
10. Use a strong solution of hot water and laundry
detergent to clean the bores. Clean the cylinder
bores immediately after de-glazing.
11. Rinse the bores until the detergent is removed
and blow the block dry with compressed air.
12. Check the bore cleanliness by wiping with a
white, lint free, lightly oiled cloth. If grit residue is still present, repeat the cleaning process until all residue is
removed. Wash the bores and the complete block assembly with solvent and dry with compressed air. Place a
clean shop towel around the top main bearing saddle to deflect water and residue from piston cooling nozzels.
Remove directed piston cooling nozzles if installed.
13. Be sure to remove the tape covering the lube holes, rod journals, and piston cooling nozzles after the cleaning
process is complete.
STANDARD PROCEDURE—CYLINDER BORE REPAIR
Cylinder bore(s) can be repaired by one of two methods:
Method 1:—Over boring and using oversize pistons and rings.
Method 2:—Boring and installing a repair sleeve to return the bore to standard dimensions.
METHOD 1—OVERSIZE BORE
Cylinder bore(s) can be repaired by one of two methods:
Oversize pistons and rings are available in two sizes - 0.50 mm (0.0197 inch) and 1.00 mm (0.0393 inch).
Any combination of standard, 0.50 mm (0.0197 inch) or 1.00 mm (0.0393 inch)overbore may be used in the same
engine.
If more than 1.00 mm (0.0393 inch) overbore is needed, a repair sleeve can beinstalled (refer to Method 2—Repair
Sleeve).
Cylinder block bores may be bored twice before use of a repair sleeve is required. The first bore is 0.50 mm
(0.0197 inch) oversize. The second bore is 1.00 mm (0.0393 inch) oversize.
After boring to size, use a honing stone to chamfer the edge of the bore.
CYLINDER BORE DIMENSION CHART
DESCRIPTION MEASUREMENT
BORING DIAMETER DIMENSION 1st. REBORE - 102.469 mm (4.0342 in.)
2nd. REBORE - 102.969 mm (4.0539 in.)
HONING DIAMETER DIMENSIONS STANDARD - 102.020 ± 0.020 mm (4.0165 ± 0.0008
in.)
1st. REBORE - 102.520 ± 0.020 mm (4.0362 ± 0.0008
in.)
2nd. REBORE - 103.020 ± 0.020 mm 4.0559 ± 0.0008
in.)
CHAMFER DIMENSIONS Approx. 1.25 mm (0.049 in.) by 30°

TAPPETS - VALVE
REMOVAL
NOTE: This procedure requires use of Miller Tool
8502 Tappet Replacement Kit.
1. Remove camshaft (Refer to 9 - ENGINE/ENGINE
BLOCK/CAMSHAFT & BEARINGS (IN BLOCK) -
REMOVAL).
2. Insert the trough (1) (provided with tool kit) the full
length of the camshaft bore. Make sure the cap
end goes in first and the open side faces up
(towards tappets).
3.Remove only one tappet at a time.Remove rub-
ber band from one cylinder pair and attach tappet
dowel not being removed to the next cylinder pair.
4. Raise dowel rod (disengage from tappet) and allow
tappet to fall into trough.
5. Carefully remove trough(do not rotate)and tap-
pet. If the tappet is not being replaced, mark it so it
can be installed in its original location.

6. Re-install trough (1) and repeat procedure on
remaining tappets.
CLEANING
Clean tappet with a suitable solvent. Rinse in hot water and blow dry with a clean shop rag or compressed air.
INSPECTION
1. Visually inspect the tappet the tappet socket, stem,
and face for excessive wear, cracks, or obvious
damage.
2. Measure the tappet stem diameter. Replace the
tappet if it falls below the minimum size.
INSTALLATION
1. Insert the trough (1) the full length of the camshaft
bore. Again, make sure the cap end goes in first
and the open side faces up (towards tappets).

Oil is then carried across the block toan angle drilling which intersects the main oil rifle (3). The main oil rifle (3)
runs the length of the block and delivers oil to the crankshaft main journals and valve train. Oil travels to the crank-
shaft through a series of transfer drillings (one for each main bearing) and lubricates a groove in the main bearing
upper shell. From there another drilling feeds the camshaft main journals. J-jet piston cooling nozzles (1,4) are sup-
plied by a separate oil rifle. Plugs are used in place of saddle jets when J-jets are used. Crankshaft internal cross-
drillings supply oil to the connecting rod journals.

CYLINDER BLOCK
DESCRIPTIONSPECIFICATION
Metric Standard
Cylinder Bore Diameter 102.356-102.368 mm 4.02975-4.03025 in.
Out of Round (Max.) 0.051 mm 0.002 in.
Taper (Max.) 0.038 mm 0.0015 in.
Tappet Bore Diameter 22.974-22.992 mm 0.9045-0.9052 in.
Block Length 693.7 mm 27.310 in.
Block Height 240.8 mm 9.48 in.
CRANKSHAFT
DESCRIPTIONSPECIFICATION
Metric Standard
Connecting Rod Journal Diameter 53.990-54.008 mm 2.1256-2.1263 in.
Out-of-Round (Max.) 0.013 mm 0.0005 in.
Taper (Max.) 0.013 mm 0.0005 in
End Play 0.051-0.178 mm 0.002-0.007 in.
Desired 0.13 mm 0.005 in.
Wear Limit 0.254 mm 0.010 in.
Main Bearing Clearance 1-6 0.025-0.051 mm 0.001-0.002 in.
Wear Limit 0.076 mm 0.003 in.
MAIN BEARING JOURNALS
DESCRIPTIONSPECIFICATION
Metric Standard
Diameter-High 76.233-76.246 mm 3.0013-3.0018 in.
Diameter-Low 76.220-76.223 mm 3.0008-3.0013 in.
Out of Round (Max.) 0.013 mm 0.0005 in
CONNECTING RODS
DESCRIPTIONSPECIFICATION
Metric Standard
Bearing Clearance 0.005-0.074 mm. 0.0002-0.0029 in.
Desired 0.0381mm 0.0015in.
Wear Limit 0.0889 mm 0.0035 in.
Piston Pin Boar Diameter 23.940-23.978 mm 0.9425-0.9440 in.
Side Clearance (Two Rods) 0.25-0.46 mm 0.010-0.018 in.
Wear Limit 0.51 mm 0.020 in.
Total Weight (Less Bearing) 598.4 grams 21.11 oz.
PISTONS

DESCRIPTIONSPECIFICATION
Metric Standard
Piston Size 102.314-102.332 mm. 4.0281-4.0288 in.
Clearance at Top of Skirt (12 mm
from bottom)0.025-0.055 mm. 0.0010-0.0022 in.
Land Clearance (Diametrical) 0.771-0.808 mm -0.036–0.042 in.
Weight 429-439 grams 15.13-15.49 oz.
Piston Length 57.0 mm 2.24 in.
Piston Pin Boar Diameter 23.940-23.978 mm 0.9425-0.9440 in.
Piston Pin Boar Offset 0.800 mm 0.031 in.
Piston Ring Groove Depth No.1 91.55-91.88 mm 3.604-3.614 in.
Piston Ring Groove Depth No.2 90.75-91.00 mm 3.573-3.583 in.
Piston Ring Groove Depth No.3 92.53-92.79 mm 3.643-3.653 in.
PISTON PINS
DESCRIPTIONSPECIFICATION
Metric Standard
Clearance in Piston 0.009-0.022 mm 0.0004-0.0009 in.
Clearance in Connecting Rod 0.017-0.061 mm 0.0007-0.0024 in.
Diameter 23.995-24.000 mm 0.9447-0.9449 in.
Length 73.35 mm 2.888 in.
End Play None
PISTON RING
DESCRIPTIONSPECIFICATION
Metric Standard
Piston Ring End Gap
Top Compression Ring 0.20-0.36 mm 0.008-0.014 in.
Second Compression Ring 0.56-0.79 mm 0.022-0.031 in.
Oil Control (Steel Rails) 0.25-0.76 mm 0.010-0.030 in.
Wear Limit-Top Compression Ring 0.63 mm 0.025 in.
Wear Limit-2nd Compression Ring 1.40 mm 0.055 in.
Wear Limit-Oil Control Steel Rails 1.64 mm 0.065 in.
Piston Ring Side Clearance
Top and 2nd Compression Ring 0.040-0.085 mm 0.0016-0.0033 in.
Oil Ring (Steel Ring) 0.046-0.201 mm 0.0018-0.0079 in.
Wear Limit- Top and 2nd Ring 0.10 mm 0.004 in.
Wear Limit Oil Ring Pack 0.216 mm 0.0085 in.
Piston Ring Width
Compression Rings 1.407-1.490 mm 0.0579-0.0586 in.
Oil Ring (Steel Rails) 0.447-0.473 mm 0.0176-0.0186 in.
CAMSHAFT

DESCRIPTIONSPECIFICATION
Metric Standard
Lift 8.13 mm 0.320 in.
Journal Diameter 1-6 53.09-53.11 mm 2.090-2.091 in.
Boar Diameter No.1-6 53.16-53.19 mm 2.093-2.094 in.
Diametrical Clearance 0.051-0.102 mm 0.002-0.004 in.
Max. Allowable 0.127 mm 0.005 in.
End Play 0.127-0.381 mm 0.005-0.015 in.
Valve Timing-Exhaust Valve
Closes (ATC) 36.5°
Opens (BBC) 88.5°
Duration 305.0°
Valve Timing-Intake Valve
Closes (BTDC) 86.5°
Opens 23.5°
Duration 297.0°
Valve Overlap 60.0°
HYDRAULIC TAPPETS
DESCRIPTIONSPECIFICATION
Metric Standard
Body Diameter 22.949-22.962 mm 0.9035-0.9040 in.
Clearance in Block 0.013-0.043 mm 0.0005-0.0017 in.
Plunger Travel (Dry) 4.24 mm 0.167 in.
Push Rod Length (Overall) 193.22-193.73 mm 7.607-7.627 in.
CYLINDER HEAD
DESCRIPTIONSPECIFICATION
Metric Standard
Gasket Thickness (Compressed) 1.35 mm 0.053 in.
CYLINDER HEAD VALVE SEAT
DESCRIPTIONSPECIFICATION
Metric Standard
Seat Angle 44°-44.5°
Runout (Max.) 0.038 mm 0.002 in.
Width (Finish) Intake and Exhaust 1.02-1.52 mm 0.040-0.060 in.
Guide Bore Diameter (Std.) 7.95-7.98 mm 0.313-0.314 in.
VA LV E S

DESCRIPTIONSPECIFICATION
Metric Standard
Face Angle 45-45.5°
Back Cut Angle 25°-29°
Stem Diameter-Intake and Exhaust 7.90-7.92 mm 0.331-0.312 in.
Head Diameter-Intake 50.67-50.93 mm 1.995-2.005 in.
Head Diameter-Exhaust 40.01-40.26 mm 1.575-1.585 in.
Length-Intake (Over All) 145.69-146.33 mm 5.736-5.761 in.
Length-Exhaust (Over All) 146.23-146.86 mm 5.757-5.782 in.
Valve Margin-Intake 1.30 mm 0.051 in.
Valve Margin-Exhaust 2.03 mm 0.080 in.
Lift-Intake (Zero Lash 14.06 mm 0.554 in.
Lift-Exhaust (Zero Lash) 14.06 mm 0.554 in.
Valve Stem Tip Height 52.96 mm 2.085 in.
Stem-to-Guide Clearance-Intake
and Exhaust0.025-0.076 mm 0.001-0.003 in.
Max. Allowable-Intake (Rocking
Method)0.50 mm 0.020 in.
Max. Allowable-Exhaust (Rocking
Method)0.70 mm 0.027 in.
VALVE SPRING
DESCRIPTIONSPECIFICATION
Metric Standard
Free Length - Spring 55.0 mm 2.165 in.
Free Length - Spring Damper 47 mm 1.850 in.
Spring Tension (Valve Closed) 534 ± 20 N @ 44.5 mm 120 ± 4.5 lbs. @ 1.750 in.
Spring Tension (Valve Open) 1245 ± 40 N @ 30.6 mm 280 ± 9.0 lbs. @ 1.207 in.
Number of Coils - Spring 7.25 Right Hand Twist
Number of Coils - Spring Damper 3.6 to 4.0 Left Hand Twist
Wire Diameter (Ovate) 4.2 x 5.3 mm 0.166 x 0.208 in.
Installed Height (Spring Seat to
Bottom of Retainer)44.5 mm 1.750 in.
LUBRICATION
DESCRIPTIONSPECIFICATION
Metric Standard
At Curb Idle Speed* (Minimum with
engine at operating temperature)68.9 kPa 10 psi
At 3000 RPM 310-517 kPa 45-75 psi
CAUTION:
*If pressure is ZERO at curb idle, DO NOT run engine at 3000 rpm.
OIL PUMP