Reference Manual
Reference Manual
| Block | |
| Type | 90-degree V8 |
| Displacement | 5.0 liters (307.12 cubic inches) |
| Bore | 3.800" |
| Stroke | 3.385" |
| Compression Ratio | 8.0:1 |
| Firing Order | 1-8-4-3-6-5-7-2 |
| Sales Code | LV2 / LG8 (1987 9 engines) |
| VIN Codes | Y and 9 |
| Cylinder Head | |
| Head ID Number | 5A / 7A |
| Combustion Chamber Volume | 67cc / 64 cc |
| Intake Port Height | 2.03" / 1.30" |
| Intake Port Width | 1.30" / 1.30" |
| Int. Valve Face Angle | 44 degrees |
| Int. Valve Seat Angle | 45 degrees |
| Int. Valve Head Dia. | 1.750" |
| Exh. Valve Face Angle | 30 degrees |
| Exh. Valve Seat Angle | 31 degrees |
| Exh. Valve Head Dia. | 1.500" |
| Valve Train | |
| Lifter Bank Angle | 39 degrees |
| Lifter Diameter | .842" hyd. / .921" roller |
| Pushrod Length | 8.265" hyd. / 7.718" roller |
| Spring Free Length | 1.960" Y / 2.090" 9 |
| Spring Pressure @ 1.670" | 76-84 lbs. Y / 85-95 lbs. 9 |
| Spring Pressure @ 1.270" | 180-194 lbs. Y / 203-217 lbs. 9 |
| Camshaft | |
| Rocker Arm Ratio | 1.6:1 |
| (Y) Intake Valve Lift | .400" hyd. / .395" roller |
| (Y) Exhaust Valve Lift | .400" hyd. / .402" roller |
| (9) Intake Valve Lift | .440" hyd. / .000" roller |
| (9) Exhaust Valve Lift | .440" hyd. / .000" roller |
| Carburetor | |
| Manufacturer | Rochester |
| Type | Quadrajet (4-bbl) |
| Primary Venturi | 1 3/32" |
| Primary Bore Dia. | 1 3/8" |
| Secondary Bore Dia. | 2 1/4" |
| Ignition | |
| Type | High Energy Ignition |
| Spark Advance | Electronic |
| Spark Plug Type | R46SZ hyd. / FR3LS6 roller |
| Spark Plug Gap | .080" hyd. / .060" roller |
| Lubrication | |
| Oil Capacity | 5.0 qts. (w/ filter) |
| AC Oil Filter | PF-58 |
| Pressure @ 1500 RPM | 30 psi. (206 kPa) |
| Table of Contents | Back | Top of Chapter |
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