CNC Competition GM LS3 6.2L 415 Short Block, Eagle Crank, Diamond 11.0:1 Pistons

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.

GM LS3 Short Block Assemble
New Eagle 4340 forged steel crankshaft (4.000 Stroke) **Internal Balance**
New Eagle H-Beam connecting rods bushed fit pins, ARP 8740 bolts (6.125 Length)
New Diamond forged -2cc flat pistons will also fit L92 Heads
High performance plasma moly piston ring set
ACL/Clevite 77 Rod and Main Bearings
Clevite 77 cam bearings
Comp Cams freeze plug kit
New GM Aluminum block
Compression Ratio with 62cc Heads: 12.1:1
Compression Ratio with 70cc Heads: 11.0:1

*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.