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A Horse With No Name

Interesting Pontiac fact #2

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Regarding the 89 Trans Am Pace car with the Turbo V6:

The Grand National engine wouldn't fit in the Trans Am's engine bay--it was too wide. To make it work, they had to remove the heads and replace them with those from the transverse version of the engine. These smaller heads had better exhaust flow and a more efficient combustion chamber shape than the GN heads, which required a unique set of pistons to maintain the desired 8.0:1 compression ratio. These heads also helped the Turbo T/A make a little more power than the GN did.

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