Not knowing much muscle cars I have kept quiet...but last night I noticed the brace on the subject car and none on the 390 car that Tyler posted pics of and thought it might mean that the car was a 428 car. If they were known for blowing up an age appropriated 428 replacement will probably not hurt the value as much as in other musce cars with more durable motors from the factory.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.