CNC LS 408 Short Block, Callies Crank, 9.5:1 Wiseco Pistons

CNC-Motorsports LS 6.0L 408 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.

Core GEN IV, 6.0L, LY6, L96 Cast Iron Block

New Callies Compstar 4340 forged steel crankshaft (4.000 Stroke) center counterweight **Internal Balance**

New Callies Compstar connecting rods bushed fit pins, ARP 2000 bolts (6.125 Length)

Wiseco 2618 forged pistons, .200 wall wrist pins (*Fits all 15 degree LS Heads L92*)

Wiseco GFX gas nitrided steel top ring, Napier second ring, with 3.0mm oil rings for power adders

H series race rod and main Bearings

Performance cam bearings

Comp Cams freeze plug kit

ARP main studs

Compression Ratio with 65cc head 9.7:1

Compression Ratio with 66cc head 9.6:1

Compression Ratio with 68cc head 9.5:1

Compression Ratio with 70cc head 9.3:1

Rated to support up to 1200 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.