Chevy LM7 5.3L LS 383 Stroker Short Block, Scat Crank, Mahle 8.7:1 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.

LM7 5.3L Stroker Short Block Assemble
New Scat 4340 forged steel crankshaft (4.000 Stroke) **Internal Balance**
New Scat H-Beam connecting rods bushed fit pins, ARP 2000 bolts (6.125 Length)
New Mahle forged -26cc pistons, Fits all 15 degree valve angle heads
High performance plasma moly piston ring set
ACL H Series Rod and Main Bearings
durabond performance cam bearings
Comp Cams freeze plug kit
CNC Race Prep Steel block
Compression Ratio with 64cc Heads: 8.9:1
Compression Ratio with 66cc Heads: 8.7:1

*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.