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Authenticity reference

L83 engine and Cross-Fire induction

numbers matching · documented

Reference Details

Common issue
Swapped later engine, tuned-port conversion, aftermarket intake, removed emissions hardware, or current Cross-Fire parts represented as born-with proof
Confidence
documented
Correct value
Application- and date-correct L83 350, block and head castings, engine stamp, dual throttle bodies, intake, controls, emissions hardware, cooling, exhaust, and records
Where to check
VIN and build evidence, engine pad and castings, intake and throttle bodies, air cleaner, sensors, controller, labels, emissions hardware, cooling, exhaust, dates, and service history

Cars With This Authenticity Marker

1 linked car page.

Sources & Documentation