1971 PONTIAC ENGINES

1971 PONTIAC ENGINES

& ENGINE ACCESSORIES

ALL SERIES & MODELS

General Engine Specifications:

6 Cylinder, 250 Cubic Inch, 145 H.P.:

Engine Type: In-Line 6 Cylinder, Overhead Valve

Bore & Stroke: 3.8750" X 3.53"

Engine Displacement: 250 Cu. In.

Compresssion Ratio: 8.50 to 1

Taxable Horsepower: 36.04

Horsepower: 145 @ 4,200 RPM

Torque: 230 Ft Lbs @ 1,600 RPM

Normal Oil Pressure: 30-45 PSI

Carburetor: 1 Barrel

8 Cylinder, 307 Cubic Inch, 200 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 3.8750" X 3.25"

Engine Displacement: 307 Cu. In.

Compresssion Ratio: 8.5 to 1

Taxable Horsepower: 48.05

Horsepower: 200 @ 4,600 RPM

Torque: 300 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 2 Barrel

8 Cylinder, 350 Cubic Inch, 250 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 3.8750" X 3.75"

Engine Displacement: 350 Cu. In.

Compresssion Ratio: 8.0 to 1

Taxable Horsepower: 48.05

Horsepower: 250 @ 4,400 RPM

Torque: 350 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 2 Barrel

8 Cylinder, 400 Cubic Inch, 265 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.1200" X 3.75"

Engine Displacement: 400 Cu. In.

Compresssion Ratio: 8.20 to 1

Taxable Horsepower: 54.32

Horsepower: 265 @ 4,400 RPM

Torque: 400 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 2 Barrel

8 Cylinder, 400 Cubic Inch, 300 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.1200" X 3.75"

Engine Displacement: 400 Cu. In.

Compresssion Ratio: 8.20 to 1

Taxable Horsepower: 54.32

Horsepower: 300 @ 4,800 RPM

Torque: 400 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 4 Barrel

8 Cylinder, 455 Cubic Inch, 280 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.1510" X 4.21"

Engine Displacement: 455 Cu. In.

Compresssion Ratio: 8.20 to 1

Taxable Horsepower: 54.32

Horsepower: 280 @ 4,400 RPM

Torque: 455 Ft Lbs @ 2,000 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 2 Barrel

8 Cylinder, 455 Cubic Inch, 325 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.1510" X 4.21"

Engine Displacement: 455 Cu. In.

Compresssion Ratio: 8.2 to 1

Taxable Horsepower: 54.32

Horsepower: 325 @ 4,400 RPM

Torque: 455 Ft Lbs @ 3,200 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 4 Barrel

8 Cylinder, 455 Cubic Inch, 335 H.P.:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.1510" X 4.21"

Engine Displacement: 455 Cu. In.

Compresssion Ratio: 8.4 to 1

Taxable Horsepower: 54.32

Horsepower: 335 @ 4,800 RPM

Torque: 480 Ft Lbs @ 3,600 RPM

Normal Oil Pressure: 30-40 PSI

Carburetor: 4 Barrel

Valve Specifications:

6 Cylinder Engine, 250 Cubic Inch:

Valve Lash: 1 Turn. With valve fully closed, turn rocker arm nut down until all play in the push rod is eliminated, then tighten nut one additional turn.

Valve Angles

Seat: 46 Degrees

Face: : 45 Degrees

Valve Spring Installed Height: 1.66"

Valve Spring Pressure: 186 Lbs @ 1.27"

Valve Stem Clearance:

Intake .0010"-.0027"

Exhaust .0010"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder Engine, 307 Cubic Inch:

Valve Lash: 1 Turn. With valve fully closed, turn rocker arm nut down until all play in the push rod is eliminated, then tighten nut one additional turn.

Valve Angles

Seat: 46 Degrees

Face: : 45 Degrees

Valve Spring Installed Height: 1.70"

Valve Spring Pressure: 200 Lbs @ 1.25"

Valve Stem Clearance:

Intake .0010"-.0027"

Exhaust .0010"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder, 350 Cubic Inch Engine:

Valve Lash: Hydraulic

Valve Angles

Small Valve Engines:

Intake Seat: 45 Degrees

Exhaust Seat: 45 Degrees

Large Valve Engines:

Intake Seat: 30 Degrees

Exhaust Seat: 45 Degrees

Small Valve Engines:

Intake Face: 44 Degrees

Exhaust Face: 44 Degrees

Large Valve Engines:

Intake Face: 29 Degrees

Exhaust Face: 44 Degrees

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

Valve Stem Diameter:

Intake: .3412"-.3419"

Exhaust: .3412"-.3419"

400 Cubic Inch Engine:

Valve Lash: Hydraulic

Valve Angles

Small Valve Engines:

Intake Seat: 45 Degrees

Exhaust Seat: 45 Degrees

Large Valve Engines:

Intake Seat: 30 Degrees

Exhaust Seat: 45 Degrees

Small Valve Engines:

Intake Face: 44 Degrees

Exhaust Face: 44 Degrees

Large Valve Engines:

Intake Face: 29 Degrees

Exhaust Face: 44 Degrees

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

Valve Stem Diameter:

Intake: .3412"-.3419"

Exhaust: .3407"-.3414"

400 Cubic Inch Ram Air Engine:

Valve Lash: Hydraulic

Valve Angles

Small Valve Engines:

Intake Seat: 45 Degrees

Exhaust Seat: 45 Degrees

Large Valve Engines:

Intake Seat: 30 Degrees

Exhaust Seat: 45 Degrees

Small Valve Engines:

Intake Face: 44 Degrees

Exhaust Face: 44 Degrees

Large Valve Engines:

Intake Face: 29 Degrees

Exhaust Face: 44 Degrees

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

Valve Stem Diameter:

Intake: .3412"-.3419"

Exhaust: .3407"-.3414"

8 Cylinder, 455 Cubic Inch Engine, with 2 Barrel Carburetor:

Valve Lash: Hydraulic

Valve Angles

Small Valve Engines:

Intake Seat: 45 Degrees

Exhaust Seat: 45 Degrees

Large Valve Engines:

Intake Seat: 30 Degrees

Exhaust Seat: 45 Degrees

Small Valve Engines:

Intake Face: 44 Degrees

Exhaust Face: 44 Degrees

Large Valve Engines:

Intake Face: 29 Degrees

Exhaust Face: 44 Degrees

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

Valve Stem Diameter:

Intake: .3412"-.3419"

Exhaust: .3407"-.3414"

Pistons, Rings, Wrist Pin, Crankshaft, & Bearing Data:

6 Cylinder Engines:

Piston Skirt Clearance: .0005"-.0015"

Ring End Gap:

Compression Ring: .010"

Oil Ring: .015"

Wristpin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.000"

Rod Bearing Clearance: .0007"-.0027"

Main Bearings:

Shaft Diameter: 2.300"

Main Bearing Clearance: 0003"-.0029"

Thrust on #7 Bearing

Crankshaft End Play: .002"-.006"

8 Cylinder, 307 Cubic Inch Engines:

Piston Skirt Clearance: .0005"-.0011"

Ring End Gap:

Compression Ring: .010"

Oil Ring: .015"

Wristpin Diameter: .927"

Rod Bearings:

Bearing Diameter: 2.099"-2.100"

Bearing Clearance: .0013"-.0035"

Main Bearings:

Shaft Diameter:

Front: 2.4502"

Rear: 2.4507"

Others: 2.4504"

Rod Bearing Clearance:

#1: .0008"-.002"

#2,3, & 4: .0011"-.0023"

#5: .0017"-.0033"

Thrust on #7 Bearing

Crankshaft End Play: .002"-.006"

8 Cylinder, 350 Cubic Inch Engine:

Piston Skirt Clearance: .0025"-.0033"

Ring End Gap:

Compression Ring: .019"

Oil Ring: .035"

Wristpin Diameter: .9802"

Rod Bearings:

Shaft Diameter: 2.25"

Rod Bearing Clearance: .0005"-.0025"

Main Bearings:

Shaft Diameter: 3.00"

Main Bearing Clearance: .0002"-.0017"

Thrust on #4 Bearing

Crankshaft End Play: .0035"-.0085"

8 Cylinder, 400 Cubic Inch Engine:

Piston Skirt Clearance: .0025"-.0033"

Ring End Gap:

Compression Ring:

Top Ring: .019"

Second Ring: .015"

Oil Ring: .035"

Wristpin Diameter: .9802"

Rod Bearings:

Shaft Diameter: 2.250"

Rod Bearing Clearance: .0005"-.0025"

Main Bearings:

Shaft Diameter: 3.00"

Main Bearing Clearance: .0002"-.0017"

Thrust on #4 Bearing

Crankshaft End Play: .0035"-.0085"

455 Cubic Inch Engines:

Piston Skirt Clearance: .0025"-.0033"

Ring End Gap:

Compression Ring:

Top Ring: .021"

Second Ring: .015"

Oil Ring: .035"

Wristpin Diameter: .9802"

Rod Bearings:

Shaft Diameter: 2.250"

Rod Bearing Clearance: .0005"-.0026"

Main Bearings:

Shaft Diameter: 3.250"

Main Bearing Clearance: .0005"-.0021"

Thrust on #4 Bearing

Crankshaft End Play: .0035"-.0085"

Engine Tightening Specifications:

6 Cylinder Engines:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 95 Ft. Lbs.

Intake Manifold:

Outer Bolt: 20 Ft. Lbs.

Inner Bolts: 30 Ft. Lbs.

Exhaust Manifold: 25 Ft. Lbs.

Rocker Arm Cover: 55 Inch Lbs.

Connecting Rod Cap Bolts: 35 Ft. Lbs.

Main Bearing Cap Bolts: 65 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

8 Cylinder, 307 Cubic Inch Engines:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold:

Outside Bolts: 30 Ft. Lbs.

Inside Bolts: 20 Ft. Lbs.

Rocker Arm Cover: 45 Inch Lbs.

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 75 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: 60 Ft. Lbs.

Other 8 Cylinder Engines:

Spark Plugs: 25 Ft. Lbs.

Cylinder Head Bolts: 95 Ft. Lbs.

Intake Manifold: 40 Ft. Lbs.

Exhaust Manifold: 30 Ft. Lbs.

Rocker Arm Shaft Bracket: 20 Ft. Lbs.

Rocker Arm Cover: 8 Ft. Lbs.

Connecting Rod Cap Bolts: 43 Ft. Lbs.

Main Bearing Cap Bolts:

Rear: 120 Ft. Lbs.

Others: 100 Ft. Lbs.

Flywheel to Crankshaft: 95 Ft. Lbs.

Vibration Damper or Pulley: 160 Ft. Lbs.

Delco-Remy Distributor Specifications:

Distributor #1110489

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 550 RPM

Intermediate Advance: 7 Degrees @ 1,150 RPM

Full Advance: 12 Degrees @ 2,050 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 7" to 9"

Maximum Vacuum Advance: 11-1/2 Degrees @ 17" Vacuum

Distributor #1112068

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 800 RPM

Intermediate Advance: 6 Degrees @ 1,000 RPM

Full Advance: 14 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Maximum Vacuum Advance: 10 Degrees @ 14-3/4" Vacuum

Distributor #1112069

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 800 RPM

Intermediate Advance: 5-1/2 Degrees @ 1,000 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Maximum Vacuum Advance: 10 Degrees @ 14-3/4" Vacuum

Distributor #1112070

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 575 RPM

Intermediate Advance: 3 Degrees @ 825 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Maximum Vacuum Advance: 10 Degrees @ 14-3/4" Vacuum

Distributor #1112071

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 800 RPM

Full Advance: 12 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 8" to 10"

Maximum Vacuum Advance: 10 Degrees @ 17" Vacuum

Distributor #1112072

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 825 RPM

Intermediate Advance: 3 Degrees @ 825 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 8" to 10"

Maximum Vacuum Advance: 10 Degrees @ 17" Vacuum

Distributor #1112073

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 500 RPM

Intermediate Advance: 4 Degrees @ 750 RPM

Full Advance: 13 Degrees @ 2,225 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Maximum Vacuum Advance: 10 Degrees @ 14-3/4" Vacuum

Distributor #1112083

Centrifugal Advance Data:

Advance Starts: 0-2 Degrees @ 600 RPM

Intermediate Advance: 6 Degrees @ 1,050 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Maximum Vacuum Advance: 10 Degrees @ 14-3/4" Vacuum

Delco-Remy Alternator & Regulator Specifications:

Alternator #1100550

Rated Capacity: 37 Amperes

Field Current @ 12 Volts: 4.0-4.5 Amperes

Output @ 14 Volts:

@ 5,000 RPM: 32 Amperes

Alternator #1100920

Rated Capacity: 55 Amperes

Field Current @ 12 Volts: 4.0-4.5 Amperes

Output @ 14 Volts:

@ 5,000 RPM: 50 Amperes

Alternator #1100927

Rated Capacity: 37 Amperes

Field Current @ 12 Volts: 4.0-4.5 Amperes

Output @ 14 Volts:

@ 5,000 RPM: 32 Amperes

Alternator #1100928

Rated Capacity: 55 Amperes

Field Current @ 12 Volts: 4.0-4.5 Amperes

Output @ 14 Volts:

@ 5,000 RPM: 50 Amperes

Alternator #1101015

Rated Capacity: 80 Amperes

Field Current @ 12 Volts: 4.0-4.5 Amperes

Output @ 14 Volts:

@ 5,000 RPM: 74 Amperes

Alternator #1100566; 1100836

Rated Capacity: 37 Amperes

Field Current @ 12 Volts: 2.2-2.6 Amperes

Output @ 14 Volts:

@ 2,000 RPM: 25 Amperes

@ 5,000 RPM: 35 Amperes

Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5-3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.8-14.8

Alternator #1100843

Rated Capacity: 61 Amperes

Field Current @ 12 Volts: 2.2-2.6 Amperes

Output @ 14 Volts:

@ 2,000 RPM: 33 Amperes

@ 5,000 RPM: 58 Amperes

Regulator #1116515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5-3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.8-14.8

Delco-Remy Starting Motor Specifications:

6 Cylinder Engines:

Part #1108365

Brush Spring Tension: 35 Ounces

Free Spin Test: 50 Amperes, 9 Volts @ 5,500-10,500 RPM

8 Cylinder, 307 Cubic Inch Engines:

Part #1108367

Brush Spring Tension: 35 Ounces

Free Spin Test: 50-80 Amperes, 9 Volts @ 5,500-10,500 RPM

8 Cylinder, 350 Cubic Inch Engines:

Part #1108445

Brush Spring Tension: 35 Ounces

Free Spin Test: 55 Amperes, 9 Volts @ 3,500-6,000 RPM

8 Cylinder, 400 & 455 Cubic Inch Engines:

Part #1108446

Brush Spring Tension: 35 Ounces

Free Spin Test: 65 Amperes, 9 Volts @ 7,500-10,500 RPM

8 Cylinder, 455 Cubic Inch Engines:

Part #1108436

Brush Spring Tension: 35 Ounces

Free Spin Test: 65 Amperes, 9 Volts @ 7,500-10,500 RPM

Rochester Carburetor Specifications:

Model: Monojet

Part #7041014

Float Level: 1/4"

Metering Rod: .080"

Choke Rod: .160"

Vacuum Break: .200"

Unloader: .350"

Part #7041017

Float Level: 1/4"

Metering Rod: .078"

Choke Rod: .180"

Vacuum Break: .225"

Unloader: .350"

Model: 2GC or 2GV

Part #7041060

Float Level: 11/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .125"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041061

Float Level: 9/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .125"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041062

Float Level: 9/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .105"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041063

Float Level: 9/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .105"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041064

Float Level: 11/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .130"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041070

Float Level: 11/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .125"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041072

Float Level: 9/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .105"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041074

Float Level: 11/16"

Float Drop: 1-3/4"

Pump Rod: 1-11/32"

Vacuum Break: .130"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Part #7041101

Float Level: 27/32"

Float Drop: 1-3/4"

Pump Rod: 1-13/32"

Vacuum Break: .110"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .075"

Choke Unloader: .200"

Part #7041110

Float Level: 27/32"

Float Drop: 1-3/4"

Pump Rod: 1-13/32"

Vacuum Break: .080"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .040"

Choke Unloader: .200"

Part #7041171

Float Level: 9/16"

Float Drop: 1-3/8"

Pump Rod: 1-11/32"

Vacuum Break: .160"

Choke Rod: Close choke valve and pull upward on the choke rod to the limit of its travel. The end of the choke rod should fit the gauge notch on the choke lever.

Choke Rod: .085"

Choke Unloader: .180"

Quadrajet Model 4MC or 4MV:

Part #7041262; 7041263

Float Level: 9/32"

Pump Rod:

Hole: Inner

Fast Idle, Bench: 2 Turns

Choke Rod: .100"

Vacuum Break: .240"

Air Valve Dashpot: .025"

Choke Unloader: .300"

Air Valve Lockout: .015"

Air Valve Valve Spring Wind Up: 7/16"

Part #7041267

Float Level: 9/32"

Pump Rod:

Hole: Inner

Fast Idle, Bench: 2 Turns

Choke Rod: .100"

Vacuum Break: .370"

Air Valve Dashpot: .025"

Choke Unloader: .300"

Air Valve Lockout: .015"

Air Valve Valve Spring Wind Up: 1/2"

Part #7041268; 7041270

Float Level: 9/32"

Pump Rod:

Hole: Inner

Fast Idle, Bench: 2 Turns

Choke Rod: .100"

Vacuum Break: .430"

Air Valve Dashpot: .025"

Choke Unloader: .300"

Air Valve Lockout: .015"

Air Valve Valve Spring Wind Up: 1/2"

Part #7041271

Float Level: 9/32"

Pump Rod:

Hole: Inner

Fast Idle, Bench: 2 Turns

Choke Rod: .100"

Vacuum Break: .240"

Air Valve Dashpot: .025"

Choke Unloader: .300"

Air Valve Lockout: .015"

Air Valve Valve Spring Wind Up: 7/16"

Part #7041273

Float Level: 9/32"

Pump Rod:

Hole: Inner

Fast Idle, Bench: 2 Turns

Choke Rod: .100"

Vacuum Break: .370"

Air Valve Dashpot: .025"

Choke Unloader: .300"

Air Valve Lockout: .015"

Air Valve Valve Spring Wind Up: 1/2"