Engine Mechanical Specifications
| General | Engine Type | V-8 |
| Displacement | 244 cu inch | |
| RPO | L47 | |
| VIN | C | |
| Compression Ratio | 10.0:1 | |
| Compression Pressure at Cranking Speed, Throttle Open | 140-170 psi | |
| Power | 250 hp @ 5,600 RPM | |
| Torque | 260 ft. lbs. @ 4,000 RPM | |
| Firing Order | 1-2-7-3-4-5-6-8 | |
| Bearings | Crankshaft, Main, Bearing Material | Aluminum |
| Production Clearance | 0.0006-0.0022 inch | |
| Service - Maximum | 0.0025 inch | |
| Connecting Rod Bearing Material | Aluminum | |
| Production Clearance | 0.0010-0.0030 inch | |
| Service - Maximum | 0.0030 inch | |
| Camshaft | Camshaft Material | Hardened Cast Gray Iron |
| Bearing Number | 5 | |
| Bearing Number on Left Cylinder Head intake | 6 | |
| Bearing Journal Diameter | 1.0610-1.0619 inch | |
| Bearing Bore Diameter, In Cylinder Head | 1.0635-1.0642 inch | |
| Bearing Clearance | 0.0020-0.0030 inch | |
| Production Limits | 0 0016-0 0035 inch | |
| Service Limits - Maximum | 0.0035 inch | |
| Runout | 0.0020 inch | |
| Out-of-Round | 0.0002 inch | |
| Straightness | 0.0003 inch | |
| Thrust Width | 0.9051-0.9091 inch | |
| Timing, @ 0.150 mm lift. intake opens | 5.6° BTDC | |
| Intake Centerline | 113° ABDC | |
| Intake Closes | 236.8° ABDC | |
| Exhaust Opens | 222.5° BTDC | |
| Exhaust Centerline | 107° BTDC | |
| Exhaust Closes | 13.8° ABDC | |
| Camshaft Lift, Intake | 0.2421 inch | |
| Exhaust | 0.2339 inch | |
| Valve Intake | 0.4134 inch | |
| Exhaust | 0.3937 inch | |
| Duration @ 0.150 mm lift, intake | 242° | |
| Exhaust | 236° | |
| Valve Overlap, @ 0.150 mm lift | 1.98° | |
| Left Intake Water Pump Drive End, Diameter | 0.6241-0.6261 inch | |
| Diameter Within Last (0.7677 inch) | 0.6249-0.6253 inch | |
| Runout | 0.0059 inch | |
| Camshaft Drive | Primary Drive Type | Endless Chain |
| Adjustment | Hydraulic, Automatic | |
| Pitch | 0.315 inch | |
| Width | Single Row | |
| Secondary Drive Type | Endless Chain | |
| Adjustment | Hydraulic, Automatic | |
| Pitch | 0.315 inch | |
| Width | Single Row | |
| Connecting Rods | Diameter, Crankshaft End, Without Bearings | 2.2495-2.2501 inch |
| Taper, Maximum | 0.0002 inch | |
| Piston Pin End, With Bushing | 0.8268-0.8274 inch | |
| Taper Maximum | 0.0003 inch | |
| Without Bushing | 0.9234-0.9421 inch | |
| Width | 0 8572 inch | |
| Center to Center | 5.9449 inch | |
| Side Clearance, Pair of Connecting Rods on Crankpin | 0.0079-0.0197 inch | |
| Crankshaft | Journals Crankshaft, Main, Diameter | 2.5335-2.5341 inch |
| Runout #1, #5 | 0.0009 inch | |
| Runout #2, #3, #4 | 0.0010 inch | |
| Round | 0.0002 inch | |
| Taper | 0.0002 inch | |
| Width, #1, #2, #4, #5 | 0 9661-0.9709 inch | |
| Thrust #3, Wall Width | 0.9902-0.9941 inch | |
| Runout | 0.0016 inch | |
| Square | 0.0004 inch | |
| Crankpin, Connecting Rod, Diameter | 2.1239-2.1245 inch | |
| Round | 0.0002 inch | |
| Taper | 0 0002 inch | |
| Width | 1.7260-1.7307 inch | |
| End Play, Production | 0.0020-0.0197 inch | |
| Service - Maximum | 0.0197 inch | |
| Flange, Engine Flywheel, Face Runout | 0.0010 inch | |
| Rear Seal, Diameter | 3.7748-3.7787 inch | |
| Runout | 0.0010 inch | |
| Nose Diameter, 0.0-21.0 mm, from Front Face | 1.3583-1.3681 inch | |
| Runout | 0.0039 inch | |
| 21.0-53.00, From Front Face | 1.3737-1.3745 inch | |
| Runout | 0 0012 inch | |
| 53.00 mm, From Front Face, to Rolled Fillet | 1.3169-1.3209 inch | |
| Runout | 0 0039 inch | |
| 89.94-110.54 mm, From Front Face | 1.7697-1.7717 inch | |
| Runout | 0.0010 inch | |
| Crankshaft Balancer | Hub Inside Diameter | 1.3719-1 3726 inch |
| Outside Diameter, Without Wear Sleeve | 1.9972-2.0028 inch | |
| Runout | 0.0039 inch | |
| Cylinder Block | Material | Aluminum with Cast-in Gray Iron Sleeves |
| Length | 20.8100 inch | |
| Cylinder Bore Diameter @ 41mm (1.6100 in) below deck face | 3 4249-3.4255 inch | |
| Out-of-Round, Production | 0.0004 inch | |
| Service - Maximum Allowed | 0 0039 inch | |
| Taper, Production | 0.0004 inch | |
| Service - Maximum Allowed | 0.0039 inch | |
| Piston Clearance @ 41mm (1.6100 in) Below Deck Face | 0.0008-0.0020 inch | |
| Stroke | 3.3071 inch | |
| Deck Height | 8.8406 inch | |
| Clearance - Above Deck Surface | 0.0177 inch | |
| Face Flatness - Maximum Allowed | 0.0039 inch | |
| Crankshaft Bearing Bore, Mains, Diameter | 2.8516-2.8521 inch | |
| Crankshaft Rear Seal Bore, Diameter | 4.5654-4.5684 inch | |
| Runout - Maximum Allowed | 0.0098 inch | |
| Cylinder Head | Type | DOHC-4 Valves Per Cylinder |
| Material | Aluminum | |
| Chamber Depth to Surface | 0.4122-0.4217 inch | |
| Flatness, Without Resurfacing - Maximum | 0.0020 inch | |
| Resurfacing Amount - Maximum | 0.0079 inch | |
| Distance to Camshaft Bore Centerline | 5.3543 inch | |
| Inside Diameter | 0.2350-0.2358 inch | |
| Valve Guide-to-Valve Stem Clearance Production Exhaust | 0.0020-0.0039 inch | |
| Intake | 0.0011-0.0027 inch | |
| Service, Exhaust | 0.0047 inch | |
| Intake | 0.0043 inch | |
| Valve Seating Surface, Angle | 45.75° | |
| Width, Exhaust | 0.0512-0.0669 inch | |
| Intake | 0.0165-0.0323 inch | |
| Runout - Maximum | 0.0020 inch | |
| Relief, Angle | 20° | |
| Width, Exhaust | 0.0063-0.0142 inch | |
| Intake | 0.0043-0.0118 inch | |
| Runout - Maximum | 0.0020 inch | |
| Undercut Angle, Exhaust | 65° | |
| Intake | 60° | |
| Oil System | Oil Pump Type | Gerotor |
| Minimum Pressure at Normal Operating Temperature @ Idle | 5 psi | |
| Minimum Pressure at Normal Operating Temperature | 35 psi | |
| Oil Pressure Recirculation | Internal Piston Valve | |
| Oil Filter Type | PF 58 | |
| Oil Capacity with Filter | 7.5 Quarts | |
| Without Filter | 7.0 Quarts | |
| Pistons | Material | Aluminum |
| Diameter | 3.4243-3.4237 inch | |
| Taper | No Taper Measurement | |
| Pin Bore Diameter | 0.8269-0.8271 inch | |
| Ring Groove Width, 1st Compression, Top | .0484-0.0494 inch | |
| 2nd Compression | 0.0602-0.0612 inch | |
| Oil Control | 0.0996-0.1006 inch | |
| Inside Diameter, 1st Compression, Top | 3.1315-3.1413 inch | |
| 2nd Compression | 3.0421-3.0520 inch | |
| Oil Control | 3.1370-3.1468 inch | |
| Piston Pins | Material | Steel |
| Diameter | 0.8266-0 8268 inch | |
| Length | 2.4409-2.4212 inch | |
| Retention | Snap Rings 2 | |
| Piston Rings | Compression | 2 |
| Oil Ring | 1 | |
| Side Clearance, 1st Compression, Top | 0.0016-0.0037 inch | |
| 2nd Compression | 0.0016-0.0037 inch | |
| Oil Control | None - Side Sealing Ring End Gap, | |
| 1st Compression, Top | 0.0098-0.0157 inch | |
| 2nd Compression | 0.0138-0.0020 inch | |
| Oil Control | 0.0098-0.0299 inch | |
| Rocker Arms Followers | Type | Roller |
| Ratio | 1.68 to 1 | |
| Roller Diameter | 0.6984-0.7008 inch | |
| Valves | Exhaust, Length from Tip to Face | 3.6114-3.6217 inch |
| Head, Diameter | 1.0976-1.1079 inch | |
| Runout - Maximum | 0.0150 inch | |
| Chamfer, Angle | 30° | |
| Width - Minimum | 0.0150 inch | |
| Margin Width | 0.0421 inch | |
| Face, Angle | 45° | |
| Width - Minimum | 0.0591 inch | |
| Runout - Maximum | 0.0015 inch | |
| Valve Stem Diameter | 0.2331-0.2339 inch | |
| Out-of-Round - Maximum Deviation | 0.0003 inch | |
| Straightness - Maximum Deviation | 0.0005 inch | |
| Intake, Length from Tip to Face OD | 4.3543-1.3646 inch | |
| Head Diameter | 1.3421-1.3524 inch | |
| Runout - Maximum | 0.0150 inch | |
| Chamfer, Angle | 30° | |
| Width - Minimum | 0.0150 inch | |
| Margin Width | 0.0350 inch | |
| Face, Angle | 45° | |
| Width - Minimum | 0.0394 in. | |
| Runout - Maximum | 0.0015 inch | |
| Valve Stem Diameter | 0.2331-0.2339 inch | |
| Out-of-Round - Maximum Deviation | 0.0003 inch | |
| Straightness - Maximum Deviation | 0.0005 inch | |
| Valve Lifters, Stationary Hydraulic Lifter Adjuster- SHLA | Type | Stationary Hydraulic |
| Diameter | 0.4719-0.4724 inch | |
| Lifter Bore Diameter, In Cylinder Head | 0.4730-0.4739 inch | |
| Clearance | 0.0015-0.0016 inch | |
| Valve Springs | Length Installed | 1.3780 inch |
| Free | 1.6059-1.7201 inch | |
| Valve Closed | 1.3780 inch | |
| Valve Open | 0.9646 inch | |
| Force, Valve Closed | 47.5-52.5 lb | |
| Valve Open | 130.2-141.9 lb | |
| Diameter Inside | 0.6988-0.7185 inch | |
| Outside | 1.0327 inch | |
| Wire, Ovate | 0.1618 x 0.1291 inch | |
| Coil Direction | Clockwise | |
| Total Number of Coils | 6.90 - 7.10 | |
| Identifier | Orange |