IMSA Chassis 1985. Here is the info from the seller.
1985 Corvette tube frame Trans Am, IMSA car – For Sale
This car was built in 1984/1985. Last raced with SOVREN in about 2008. Fresh engine with one race, dynoed at 648 Hp. New 5 speed trans, Fresh Frankland quik change diff., Koni coil overs with 5 link rear suspension, huge brakes and 16-inch BBS wheels. New fuel cell. Huge number of spares. Haulmark 24’ trailer available.
This car has raced at many of the famous racetracks in the US and Canada, including the Long Beach Grand Prix. $80,000.(was $85,000).
**The deal from my seller is that he admits he made the mistake of putting this Vette up, for the last 4 years without being soaked with oil. So, it might be seized. At full price he will take it out and completely rebuild it, already has the hot internals. He of course will put in what you want but likely its already there! The guy has been racing AND winning since the 1960', (pic of his old car attached). He has owned a Corvette race/repair shop for decades, it will be a front running car.