CNC Competition LT1 6.2L 416 Short Block Compstar Crank JE 12.3:1 Pistons

CNC-Motorsports Gen V LT 6.2L short blocks have 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 to lessen the price.


New GM LT Aluminum Block
New Callies Compstar 4340 forged steel crankshaft (4.000 Stroke) 8 counterweight
New Callies Compstar H-Beam connecting rods bushed fit pins, ARP 2000 bolts (6.125 Length)
JE forged pistons, .150 wall wrist pins (*Fits all LT1 heads*)
Steel Piston ring set, 1.2 Steel top ring, 1.5 Napier second ring, with 3.0mm oil rings for power adders
ACL / King H series race rod and main Bearings
Performance cam bearings
Comp Cams freeze plug kit
Compression Ratio with LT1 head 12.3:1 
Rated to support 1200 plus Horsepower

*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.