LSX454 Long Block

Chevrolet Performance LSX 454 long block crate engines are built with an all-forged, super-tough rotating assembly and feature a pair of new Chevrolet Performance deep-breathing LSX 6-bolt cylinder heads. They also come dressed with great looking, all-new orange powdercoated valve covers with an engraved LSX454 logo. With a carburetor and high-flow Chevrolet Performance intake manifold (sold separately), these engines are good for about 627 hp and 586 lbs.-ft. of torque. Due to the number of application variations, the Chevrolet Performance LSX 454 long block crate engines do not include an oil pan, and the valve covers do not include provisions for mounting the ignition coil brackets.

Other specifications include:

* 4.185 in. bore
* 4.125 in. stroke
* Cast iron LSX Series block with cross-bolted 6-bolt main caps
* Forged steel crankshaft
* Forged steel connecting rods
* Forged aluminum 11.0:1 compression pistons
* Hydraulic roller camshaft
* 0.635 in. lift intake/0.635 in. lift exhaust, 236 intake/246 exhaust duration at .050 in. lift
* Aluminum LSX-LS7 cylinder heads with 70cc chambers
* 1.8:1 aluminum roller rocker arms
* 58-tooth reluctor wheel

*Oil pan not included.

627 hp @ 6300 rpm on a Non-Boosted application with OEM LS7 intake manifold!

Long Block comes with LS7 Crank pulley. C5/C6 Corvette serpentine drive will work for this application.  Most LS/LQ Accessory drive will also bolt up to the block.