The bottom end had at least $12K of parts in it with the cam, crank and pistons and high volume oil pump, balancing, magnafluxing, etc.
The block was only 30 over, but with the mods, he said he was at somewhere around 550 cu. in. Up top, aluminum heads - polished & ported with a 5 angle valve job, new intake with a slight rise to it, and a 750 Holley with tuned headers. The fellow said it dyno'd at 748 horses to the axle and I believed him. It was a show car, but it had straight duals to the rear w/ a crossover in front of the tranny and a street exhaustback at the shop that easily switched out. And yes, he fired it after the crowd got big, and then lit up some serious rubber --- a huge cloud. You couldn't talk to anyone within 5 ft of the car once he punched it.
Awesome....Awesome ....Awesome. Everyone turned that way when he cranked the old girl up. He said he wouldn't take less than $80K for her then and I thought that was fair even though the VIN showed didn't originally come with that 428.
Yikes! What a monster! Kowabunga, 748 HP at the rear axle! Holy cow, that would get you to the corner store in a jiffy!
I am the proud owner of a 2003 Mustang Cobra. The factory says the motor is rated at 390 HP, but I have been told that that is a low number by folks who've dynoed theirs.
It is a lovely car and gets up to 26 MPG on the highway.
I haven't done any after market work on it.
Thank you for your note! Vroom, vroom!
-Rex