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Second Chance Garage

For the Classic Car
Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Classic Car
Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Classic Car Restoration Enthusiast

Second Chance Garage

ENGINE SPECS

1948 Chevrolet 216 (90 hp) Inline 6 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: Six Cylinder Stylemaster 6, FJ; Fleetmaster 6, FK

Wheel base: 116

Valve Location: In head

Bore and Stroke: 3-1/2 x 3-3/4

Piston displacement, Cubic Inches: 216.5

Compression ratio: 6.50

Maximum Brake Horsepower: 90 @ 3300 RPM

Maximum Torque Lbs.Ft. @ RPM: 174 @ 1200

Normal Oil Pressure Pounds: 14

TUNE UP SPECIFICATIONS

Spark Plug Make: AC M8

Spark Plug Gap, Inch: .040

Firing Order: 153624

Ignition Timing: Timing mark: steel ball located on flywheel

Engine Idle Speed, RPM: Manual shift trans. 350; automatic trans. N/A

Cylinder Head Torque Lbs.Ft.: 75-80

Compression Pressure & Cranking Speed: 110

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale: Removed from Above
Shim thickness to use:
Pistons should pass on a .002 feeler with light pressure, and lock on a .003 feeler;

Rings: (for tapered bores for minimum clearance fit rings in tightest portion of ring travel)
Ring Gap, Minimum: Compression: .005
Ring Gap, Minimum: Oil: .005
Clearance in Groove: Compression: .0015-.003
Clearance in Groove: Oil: .002-.0035

Wristpin Diameter, Inch: .8645-.8650

VALVE SPECIFICATIONS

Operating Clearance: Intake: .006 Hot
Exhaust: .015 Hot

Clearance for Timing Intake: 0

Valve Seat Angle, degrees: 30

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 1 degree ATDC
Exhaust Closes Degrees ATDC: 9

Valve Spring Pressure Pounds at Inches Length: Spring: 125 @ 1-1/2

Valve Stem Clearance: Intake: .001-003
Exhaust: .002-.004

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings: Journal Diameter, Inches: 2.311-2.312
Bearing Clearance, Inch: .0003-.0013
Rod End Play, Inch: .004-.012
Rod Bolt Tension, Lbs.Ft.: 35-45

Main Bearings: Journal Diameter, Inches: Front: 2.6835 - 2,6845; No. 2: 2.7145-2.7155; No. 3: 2.7455-2.7465; No. 4: 2.7765-2.7775
Bearing Clearance, Inch: .0007-.0024
Crankshaft End Play, Inch (taken on No. 3 bearing): .003-.009
Main Bolt Tension, Lbs.Ft.: 100-110

CAPACITY DATA

Cooling System: Without heater: 15 quarts
With heater: 16 quarts

Fuel Tank: 16 gallons

Engine Oil: 5 quarts

Transmission: 1-1/2 pints;

Rear Axle: 3-1/2 pints

Other 1948 Chevrolet Engine Specs

1948 Chevrolet 216 (90 hp) Inline 6 Engine Specs

1948 Chevrolet 216 (90 hp) Inline 6 Engine Distributor Specs

1948 Chevrolet 216 (90 hp) Inline 6 Engine Generator Specs

1948 Chevrolet 216 (90 hp) Inline 6 Engine Regulator Specs

1948 Chevrolet 216 (90 hp) Inline 6 Engine Starting Motor Specs

Return to Chevrolet Engine Specs Index