The builder, Butler Performance, punched out the bores on the seasoned block and added a 4.500-inch forged Scat stroker crank, Scat rods, and CP slugs to get the final displacement to 486 ...

Size counts. Don't believe us? We'll take the opportunity to try and prove it with this 601-inch street Pontiac. Yes, that's right, a 601-inch Pontiac. A level that until recently has been impossible ...