CNC Competition Dart LS 415 Short Block, Compstar Crank, Diamond 11:1 Pistons (Assymetrical)

CNC-Motorsports, has quickly raised the bar to a new level in offering high quality short blocks at an affordable price. Our short 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 short blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. We never cut corners like others just to lessen the price.

LS Short Block

Compstar 4340 forged steel crankshaft (4.000 Stroke) **Internal Balance**
Compstar H-Beam connecting rods w/ ARP2000 Bolts (6.125 Length)
Diamond forged -3cc flat top pistons (Assymetrical)
High performance plasma moly piston ring set
ACL/Clevite 77 Rod and Main Bearings
Dart LS Next Iron block
Compression Ratio with 70cc Heads: 11:1

*Professionally Machined, Balanced, Assembled and blue printed in house by CNC-Motorsports. Balance card and blue print sheet will be provided to the customer. All short blocks are standard bore unless otherwise noted. We can custom build any short block assembly to meet your needs.