CNC Competition SB Chevy 350 Dart Short Block, Compstar Crank, Diamond 12.5:1 Nitrous 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.

SB Chevy 350 Short Block Assemble
New Compstar 4340 forged steel crankshaft (3.480 Stroke) **Internal Balance**
New Compstar H-Beam connecting rods bushed fit pins, ARP 2000 bolts (6.000 Length)
New Diamond forged 13.5cc dome nitrous pistons (4.030)
Total Seal AP Steel piston ring set
ACL/Clevite 77 Rod and Main Bearings
Dura bond cam bearings
Brass freeze plug kit
Dura bond finishing kit
New Dart SHP block
Compression Ratio with 58cc Heads: 13.7:1
Compression Ratio with 64cc Heads: 12.5:1
Compression Ratio with 72cc Heads: 11.3:1
**Blocks can be set up for dry sump, please call**

*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.