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Running from 1970 to 1981, the Second Generation Pontiac Firebird became a muscle car icon with its aggressive styling and high-output 400+ cubic inch V8s, including the famed 455 Super Duty. Whether you're restoring a classic or building a street beast, Texas Speed & Performance supplies modern engine internals, cam kits, and LS swap solutions to bring your second-gen Firebird into the modern era of muscle.
Looking for a direct swap for your Firebird build? Here are the engines most commonly used when upgrading your Second Gen Firebird.
At Texas Speed & Performance, we offer a wide selection of top aftermarket brands to help take your Second Generation Pontiac Firebird (1970–1981) to the next level. Whether you're building a high-performance engine for your Trans Am or sourcing valve springs to revive a junkyard LS swap, we’ve got the parts and expertise to get you there.





