GM LSX LS7 7.0L 427 CNC Big Boost Long Block, Brodix BR7 Heads, Diamond 9.4:1 Compression Pistons

CNC-Motorsports has quickly raised the bar to a new level in offering high quality long blocks at an affordable price. Our long blocks have become a huge hit among racers and performance enthusiast all over the world. We have the ability to custom build you just about any combination the way you want it. All our long blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. We will never cut corners just to lessen the price.

GM LSX Race prep cast iron engine block
Callies Magnum 4340 forged steel crankshaft, 4.000 stroke
Callies 4340 forged Ultra I beam connecting rods with ARP2000 bolts, 6.125 length
Diamond 2618 forged race series pistons with .185 wrist pins, 9.4:1 +/- compression
Premium performance piston rings
H series rod and main bearings
Melling select performance oil pump
Cloyes billet single roller timing chain kit
CNC custom ground solid roller camshaft *We can customize to your needs*
Crower solid roller lifters
Brodix BR7 aluminum cylinder heads
Fel-Pro MLS head gaskets
ARP head studs
Trend .135 wall 3/8 pushrods
Crower shaft rockers
100% machined, balanced, and the long block assembly is blue-printed to our race winning specs
This long block is rated to support 1500+ horsepower. Big Boost and Nitrous friendly. **Power adder information will be needed to adjust clearances for your build**