1951 Chevrolet 216 Engine Specifications

General Specifications
Bore 3.5″
Stroke 3.75″
Displacement 216.5 ci
Compression 6.60 : 1
Max Brake Horsepower 92 @ 3400 RPM
Max Torque 176 Lbs.ft. @ 1500 RPM
Normal Oil Pressure 14 psi
Spark Plug Make AC 46-5
Spark Plug Gap .035″
Firing Order 153624
Oil Capacity 5 qts.
Ignition Timing Timing mark: steel ball on flywheel
Cylinder Head Torque 75 – 80 Lbs.ft.
Compression at Crank Speed 110 psi
Piston and Ring Specifications
Min. Ring Gap (Compression) .005″
Clearance in Groove (Compression) .0015″ – .0030″
Min. Ring Gap (Oil) .005″
Clearance in Groove (Oil) .0020″ – .0035″
Wristpin Diameter .8645″ – .8650″
Valve Specifications
Operating Clearance – Intake (w/ Standard Trans) .006″ Hot
Operating Clearance – Exhaust (w/ Standard Trans) .015″ Hot
Operating Clearance – Intake (w/ Hydramatic) 0
Operating Clearance – Exhaust (w/ Hydramatic) 0
Clearance for Timing Intake 0
Intake Valve Seat Angle 31°
Exhaust Valve Seat Angle 46°
Intake Valve Timing (w/ Standard Trans) Opens 1° after Top Dead Center
Exhaust Valve Timing (w/ Standard Trans) Closes 9° after Top Dead Center
Intake Valve Timing (w/ Hydramatic) Opens 16° before Top Dead Center
Exhaust Valve Timing (w/ Hydramatic) Closes 17.5° after Top Dead Center
Valve Spring Pressure (w/ Standard Trans) 125 lbs. @ 1.5″
Valve Spring Pressure (w/ Hydramatic) 160 lbs. @ 1.5″
Valve Stem Clearance (Intake) .001″ – .003″
Valve Stem Clearance (Exhaust) .002″ – .004″
Main Engine Bearing Specifications
Journal Diameter (Front) 2.6835″ – 2,6845″
Journal Diameter (No. 2) 2.7145′ – 2.7155″
Journal Diameter (No. 3) 2.7455″ – 2.7465″
Journal Diameter (No. 4) 2.7765″ – 2.7775″
Bearing Clearance .0007″ – .0028″
Crankshaft End Play .003″ – .009″ (taken on No. 3 bearing)
Main Bolt Tension 100-110 Lbs.ft.
Connecting Rod Bearing Specifications
Journal Diameter 2.311″ – 2.312″
Bearing Clearance .0003″ – .0013″
Rod End Play .004″ – .012″
Rod Bolt Tension 35 – 45 Lbs.ft.
Delco-Remy Distributor Specifications
Distributor Part No. 1112362, 1112363
Rotation Direction Clockwise
Cam Angle 31° – 37°
Breaker Point Opening .022″
Condenser Capacity .18 – .23 Mfds.
Breaker Arm Spring Tension 17 – 21 Oz.
Centifugal Advance Start (1112362) 1.5° @ 350RPM
Centifugal Advance Full (1112362) 19° @ 1700RPM
Centifugal Advance Start (1112363) 1° @ 300RPM
Centifugal Advance Full (1112363) 16.5° @ 1850RPM
Vacuum Advance Start 7 – 8.5″ of vacuum
Vacuum Advance Full 16.5 – 18.5″ of vacuum
Max Vacuum Advance 10°
Delco-Remy Generator Specifications
Generator Part Number 1102749, 1102761
Output (1102749) 45 Amps @ 2400 RPM
Output (1102761) 36 Amps @ 2400 RPM
Brush Spring Tension 28 oz.
Field Current (6 or 12 volts) 1.75 – 1.9
Delco-Remy Starter Specifications
Starter Part Number 1107075
Bush Spring Tension 24 – 28 oz.
No Load Test 70 amps, 5.65 Volts @ 5000 RPM
Torque Test 550 Amps, 3.25 Volts, Torque: 11 Lbs.ft.

Comments (11)

  1. mitch

    3 years ago

    hello, i need to find out the proper radiator cap pressure for a 1951 gmc pickup. thanks mitch

  2. mike rakes

    3 years ago

    Hello I am trying to find the best way to put a distributor in the right spot the engine doesnt have a distributor the timing mark is on the flywheel I think the vehicle is a 1951 chevy suburban with a 216 engine any info would be greatly appreciated. Thanks

  3. Leath

    3 years ago

    I need to replace the Bearing bolts on the rear main cap, what grade of bolt do I need ?

  4. JASON DUBOIS

    3 years ago

    What is the torque spec for the flywheel bolts on a 1951 chevy truck 1 ton standered shift

  5. rob

    3 years ago

    cant seem to get timeing on 51 chevy styleline deluxe 4 door sedan 216 eveything orginal

  6. Jerry Edginton

    3 years ago

    I have a 51 chev Belair — The engine has two different o.d. size push rods in it. Which one fits where?

  7. jerry montoya

    2 years ago

    hi.i have a 216 motor in a 1950 chevy deluxe.i cant get it to stop missing.im thinking its because i live in high altitude.what should i set my timing too.the car is from cali.should i tme the motor a little advance from the original timing mark.please respond

  8. Ivan Stamenkovic

    2 years ago

    Hello everyone
    I have Cevrolet 216 engine, low pressure lubrication, bloc casting GM 839253, engine number PR3919345. Main bearings and connecting rods I plied white metal. How to give a tolerance for the lubrication of main bearing and connecting rod bearing? Connecting rods are babbit.
    Best regards
    Ivan Stamenkovic
    Serbia
    Europe

  9. Petr Svada

    2 years ago

    Hello, Is there actual difference in dimension between Chev 216 and 235 ???
    An trying to learn visual differences between these two engines.Any help would be great! Thanks!

  10. lee

    11 months ago

    rad cap 4lb. level in rad 1″ lower in rad to allow for expansion hope this helps

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