Blown 427 Sounds MEAN! - #blown427 #enginesound #horsepower #carshow #truckshow #fastcar #fasttrucks #Trucks #classiccars #classictruck #carculture | The Customized Ride

Here’s a little flashback to dynoing our 427ci Twin Turbos SBC on pull 40/73, (we restarted our count at 30) still on a lower level of boost but making 1100hp! You can tell how excited we were to be repeatedly thrashing this thing, and can see how consistently the engine was producing power as this pull laid right over a previous one. I am sure we all wish we had one of these coming for a holiday gift this year, but in the meantime, make sure you go check out our latest video on the @enginepower

427 SBC crate engine custom built by Proformance Unlimited. Engine features a fully forged rotating assembly, new Dart engine block, CNC AFR cylinder heads, fully rollerized stainless rockers Edelbrock intake manifold, MSD billet distributor, 1 piece pushrods, FAST EZ EFI and a custom ground hydraulic roller camshaft designed by us. Engine produced 585hp and 575 ft lbs of torque. Engine will be installed into a '69 Pontiac LeMans. You can view this engine package along with upgrades available at

SB Chevy 427 crate engine, 10.3:1 compression. This is our 580 horsepower version and one of our most popular builds. | CNC-Motorsports