Crankcase Capacity
See CRANKCASE CAPACITY table.
| Application | Qts. (L) |
|---|
| Crankcase Capacity | 7 (6.6) |
| (1) Capacity includes oil filter. |
| (1) | Capacity includes oil filter. |
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) |
|---|
| Bellhousing Bolt | 30 (41) |
| Camshaft Sprocket Bolt | 20 (27) |
| Connecting Rod Cap Nut | 48 (65) |
| Crankshaft Damper Bolt | 85 (115) |
| Cylinder Head Bolt (1) |
| Step 1 | 30 (41) |
| Step 2 | 60 (81) |
| Step 3 | 80 (108) |
| Exhaust Manifold Bolt | 40 (54) |
| Flywheel Bolt | 65 (88) |
| Intake Manifold Bolt | (2) 30 (41) |
| Main Bearing Cap Bolt | 100 (136) |
| Oil Pan Bolt | 13 (18) |
| Oil Pump Bolt | 65 (88) |
| Rocker Arm Bolt | 40 (54) |
| Water Pump Bolt | 30 (41) |
| INCH Lbs. (N.m) |
| Front Cover Bolt | 97 (11) |
| Oil Pump Cover Bolt | 80 (9) |
| Valve Cover Bolt | 60 (7) |
| (1) Apply GM Sealant (1052080) to head bolt threads. Tighten bolts in sequence. (Схема №3) (2) Tighten bolts in sequence. (Схема №2) |
| (1) | Apply GM Sealant (1052080) to head bolt threads. Tighten bolts in sequence. (Схема №3) |
| (2) | Tighten bolts in sequence. (Схема №2) |
GENERAL ENGINE SPECIFICATIONS
| Application | Specification |
|---|
| Displacement | 454 Cu. In. (7.4L) |
| Bore | 4.25" (108.0 mm) |
| Stroke | 4.00" (101.6 mm) |
| Compression Ratio | 7.9:1 |
| Fuel System | TBI |
| Horsepower @ RPM | 230 @ 3600 |
| Torque Ft. Lbs. @ RPM | 385 @ 1600 |
GENERAL ENGINE SPECIFICATIONS
CRANK, MAIN & CON. ROD BEARINGS SPECIFICATIONS
| Application | In. (mm) |
|---|
| Crankshaft End Play | .006-.010 (.15-.25) |
| Main Bearings |
| Journal Diameter | 2.7482-2.7489 (69.804-69.822) |
| Journal Out-Of-Round | .001 (.03) |
| Journal Taper | .001 (.03) |
| Oil Clearance |
| Standard |
| No. 1, 2, 3 & 4 | .0017-.0030 (.043-.076) |
| No. 5 | .0025-.0038 (.064-.097) |
| Service Limit |
| No. 1, 2, 3 & 4 | .0010-.0030 (.025-.076) |
| No. 5 | .0025-.0040 (.064-.102) |
| Connecting Rod Bearings |
| Journal Diameter | 2.1990-2.1996 (55.855-55.870) |
| Journal Out-Of-Round | .001 (.03) |
| Journal Taper | .001 (.03) |
| Oil Clearance | .0011-.0029 (.028-.074) |
CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS SPECS
CONNECTING RODS SPECIFICATIONS
| Application | In. (mm) |
|---|
| Side Play | .013-.023 (.33-.58) |
CONNECTING RODS SPECIFICATIONS
PISTONS, PINS & RINGS SPECIFICATIONS
| Application | In. (mm) |
|---|
| Piston Clearance | (1) .003-.004 (.08-.10) |
| Pins |
| Diameter | .9895-.9897 (2.513-2.514) |
| Piston Fit | .0002-.0007 (.005-.018) |
| Rod Fit | .0021-.0031 (.053-.079) Interference |
| Rings |
| No. 1 |
| End Gap | .010-.018 (.25-.46) |
| Side Clearance | .001-.003 (.03-.07) |
| No. 2 |
| End Gap | .016-.024 (.41-.61) |
| Side Clearance | .001-.003 (.03-.07) |
| No. 3 (Oil) |
| End Gap | .010-.030 (.25-.76) |
| Side Clearance | .005-.007 (.127-.178) |
| (1) Maximum service limit is 005" (.13 mm). |
| (1) | Maximum service limit is 005" (.13 mm). |
PISTONS, PINS & RINGS SPECIFICATIONS
CYLINDER BLOCK SPECIFICATIONS
| Application | In. (mm) |
|---|
| Cylinder Bore |
| Diameter | 4.2500-4.2507 (107.950-107.968) |
| Maximum Taper | (1) .0005 (.013) |
| Maximum Out-Of-Round | (2) .001 (.03) |
| (1) Specification is for thrust side. Relief side is .001" (.03 mm). (2) Production specification is given. Maximum service specification is .002" (.05 mm). |
| (1) | Specification is for thrust side. Relief side is .001" (.03 mm). |
| (2) | Production specification is given. Maximum service specification is .002" (.05 mm). |
CYLINDER BLOCK SPECIFICATIONS
VALVES & VALVE SPRINGS SPECIFICATIONS
| Application | Specification |
|---|
| Intake & Exhaust Valves |
| Face Angle | 45° |
| Valve Springs |
| Free Length | 2.12 (53.8) |
| Installed Height | 1.80 (45.7) |
| Pressure (1) |
| Valve Closed | 74-86 @ 1.80 (34-39 @ 45.7) |
| Valve Open | 195-215 @ 1.40 (88-98 @ 35.6) |
| (1) Lbs. @ In. (Kg @ mm). |
VALVES & VALVE SPRINGS SPECIFICATIONS
CYLINDER HEAD SPECIFICATIONS
| Application | Specification |
|---|
| Valve Seats |
| Intake Valve |
| Seat Angle | 46° |
| Seat Width | .031-.063" (.79-1.60 mm) |
| Maximum Seat Runout | .002" (.05 mm) |
| Exhaust Valve |
| Seat Angle | 46° |
| Seat Width | .063-.094" (1.60-2.39 mm) |
| Maximum Seat Runout | .002" (.05 mm) |
| Valve Guide Oil Clearance | .001-.003" (.03-.08 mm) |
CYLINDER HEAD SPECIFICATIONS
CAMSHAFT SPECIFICATIONS
| Application | In. (mm) |
|---|
| Journal Diameter | 1.9482-1.9492 (49.484-49.510) |
| Lobe Lift |
| Intake | (1) .2343 (5.951) |
| Exhaust | (1) .2530 (6.426) |
| (1) Plus or minus .002" (.05 mm). |
| (1) | Plus or minus .002" (.05 mm). |
