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12A to 13B Atkins Front Engine Mount Conversion Bracket (ARE8620)
Don't forget a bolt kit to mount this.
Front Engine Mount allows any 1974-85 13B engine to be installed into any 1979-85 12A RX-7 chassis. (The stock Mazda front engine mount from a 1984-85 13B GSL-SE engine cannot be used as an alternative due to differences in the design of the GSL-SE chassis front cross member.)
When this engine mount is used in conjunction with the 1984-85 GSL-SE 13B engine using any 1974-85 13B Engine RX-7 oil pan, this laser-cut stainless steel mount greatly simplifies installation.
This mount can used with either the stock Mazda engine mounts or the Mazda Competition version.
You can also use this on any 86-95 13B engine if you change the front cover and oil pan to the 84-85 13B version.