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1971 - 1976 B-Body LS Accessory Drives

LS accessory drives for 1971-1976 Impala, Caprice and other full size B-Body swaps. The B-Body guide says a 1998-2002 F-Body A/C compressor will not clear the frame and a high mount A/C bracket is required, while the BRP A/C and alternator and power steering brackets clear in short, medium and long spacing.

  • High mount A/C required
  • Clears in all three lengths
  • Compressor included

All chassis notes here come from the 1971-1976 B-Body LS install guide. For mounts, crossmember and headers, open the 1971-1976 B-Body LS page.

1971-1976 B-Body LS accessory drive parts

Keeping A/C in the B-Body

The guide requires a high mount A/C bracket. These A/C drives come with the compressor in every length.

Skipping A/C

Use an alternator and power steering drive. The guide notes a 1998-2002 F-Body alternator has plenty of frame clearance.

High mount A/C compressor drives for 1971-1976

Alternator and power steering drives

Alternator and power steering drives that include the pump

The length in each name is the balancer length. Use the length that fits the balancer already on your LS.

1971-1976 B-Body guide notes

  • A 1998-2002 F-Body A/C compressor does not clear the frame, so a high mount A/C bracket is required.
  • BRP A/C brackets and alternator and power steering brackets clear everything in short, medium and long spacing.
  • Left in the stock location, the ignition coils clear both the factory A/C box and the brake booster.
  • The guide was done with an LH8 pan; the BRP Moroso pan is recommended for lowered cars.

Matching a drive to your B-Body

  • A/C kept: a high mount A/C compressor drive.
  • No A/C, pump supplied: the base drive.
  • No A/C, pump needed: the w/Pump drive.

Notes from the BRP 1971-1976 B-Body LS install guide. Drive details come from the product names.

1971-1976 B-Body LS accessory drive FAQ

Will the stock LS1 F-Body A/C compressor fit a 1971-1976 Impala LS swap?

No. The 1971-1976 B-Body guide says the 1998-2002 F-Body A/C does not clear the frame and a high mount A/C bracket is required.

Do all three drive lengths clear in a 1971-1976 B-Body?

Yes. The guide says BRP A/C brackets and alternator and power steering brackets clear everything in short, medium and long spacing.

Is the compressor part of the 1971-1976 B-Body A/C drive?

Yes. The High Mount AC Compressor Drive w/Compressor includes the compressor in Short, Medium and Long.

Do the coils hit the A/C box on a 1971-1976 B-Body?

The guide says the ignition coils clear the factory A/C box and power brake booster in their stock location.