Dirty Dingo Billet Aluminum “Double-D” LS Adapter Plates
Dirty Dingo Motorsports “Double-D” adapter plates are designed for installing a 1997–2013 Gen III or Gen IV LS engine into older GM vehicles.
These adapter plates fit:
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1958–1972 GM cars
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1958–1972 2WD GM trucks
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1962–1991 Corvettes
1958–1961 Corvettes require a frame stand when using a factory GM three-bolt motor mount.
Each plate starts as 1/2-inch-thick 6061-T6 aircraft-grade billet aluminum. The plates are CNC-machined on both sides to a finished thickness of 3/8 inch. This process creates a strong, lightweight, and precise bolt-in adapter plate.
These plates make it easier to replace a small-block or big-block Chevy engine with an LS-series engine.
Four Engine Mounting Positions
The Double-D adapter plates offer four engine positions:
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Factory bellhousing position
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11/16 inch forward
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1 11/16 inches forward
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2 1/4 inches forward
These positions match the most common engine locations used by major header manufacturers. The four mounting options help provide clearance for the firewall, headers, transmission, and other engine-bay parts.
Each kit includes a driver-side plate, passenger-side plate, and all required Grade 8 zinc-coated hardware.
Important Fitment Information
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Sold as a pair.
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Made from 6061-T6 billet aluminum.
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Will not fit Dart aftermarket engine blocks.
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Clears the Dirty Dingo DD-LS-AC-LM low-mount A/C system.
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Will not clear the rear brace on a low-mount GTO alternator.
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Will clear a Camaro low-mount alternator when the rear brace is removed.
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Will not fit 1967–1972 4X4 Chevy or GMC trucks.
The 1967–1972 4X4 Chevy and GMC trucks require a complete front crossmember. Click here.
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