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1964

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1965

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1966

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1967

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1968

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1969

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1970

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1971

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1972

 

1971 Chevelle Coil/Distributor/Ignition Timing Specifications

 

Data are from GM's Information Kit. For other 1971 Chevelle distributors see my distributors page.

 

  250
155hp
307
200hp
350
245hp
Ignition Coil 1115208 1115293 1115293
Breaker Gap .019 0.19 .019
Cam Angle 31-34 29-31 29-31
Breaker Arm Tension 19-23 19-23 28-32
Distributor 1110489 1112005 - Manual
1112039 - Automatic
1112042 - Manual
1112005 - Automatic
Timing (Degree at BTDC @ RPM) 4° @ 550 4° @ 600 - Manual
8° @ 550 - Automatic
2° @ 600 - Manual
8° @ 550 - Automatic
Max 24° @ 1400 24° @ 4300  - Manual
20° @ 4200 - Automatic
28° @ 4300  - Manual
24° @ 4300 - Automatic
       
  350
270hp
402
300hp
454
365hp
454(1)
425hp
Ignition Coil 1115293 1115293 1115293 1115293
Breaker Gap .019 0.19 .019 .019
Cam Angle 29-31 28-30 28-30 28-30
Breaker Arm Tension 19-23 19-23 19-23 19-23
Distributor 1112044 - Manual
1112045 - Automatic
1112057 1112052 1112075 - Manual
1111054 - Automatic
Timing (Degree at BTDC @ RPM) 4° @ 600 - Manual
8° @ 550 - Automatic
8° @ 600 - Manual
8° @ 600 - Automatic
8° @ 600 - Manual
8° @ 600 - Automatic
4° @ 700 - Manual
12° @ 700 - Automatic
Max 22° @ 4200  - Manual
18° @ 4200 - Automatic
30° @ 4400 22° @ 3900 32° @ 5000  - Manual
28° @ 5000 - Automatic

(1) The 454/425hp engine was never released to the public in a 1971 Chevelle
Neither the L78 nor the LS6 is shown in GM's Information Kit.

 


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