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

27 reactions | Proformance Unlimited's complete LQ9 364CI 525HP crate engine package dyno tested ready for installation. This build features the Cast Iron LQ9 6 bolt block. This engine was custom built to be installed into a '69 Nova. You can view our LS crate engines at the following link: www.proformanceunlimited.com/ls-crate-engines/ | Proformance Unlimited - Custom Crate Engines | Facebook