CNC Competition SB Chevy 383 Stroker Dart Short Block, Molnar Crank, JE 8.5:1 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.

SB Chevy 350/383 Short Block Assemble
New Molnar 4340 forged steel crankshaft (3.750 Stroke) **Internal Balance**
New Molnar H-Beam connecting rods bushed fit pins, ARP 2000 bolts New JE forged -31cc dish pistons (4.030)
High performance plasma moly 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: 9.0:1
Compression Ratio with 64cc Heads: 8.5:1
Compression Ratio with 76cc Heads: 7.8:1

*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.