LS 415 Max Pro Short Block, Flat Top LS2K Diamond Pistons, Fits 12 Degree Heads, 2000 HP

CNC-Motorsports LS Dart 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.

Dart SHP LS Next Pro Cast Iron Block (4.065 bore), Superior strength 220 BHN Cast Iron, accepts all factory parts

Splayed outer bolts on middle main bearing caps with ARP2000 main studs

Fully Skirted block, cylinders extended .375" at the bottom for better piston stability

6 heads bolts per cylinder

Dart Billet 4340 CCW crankshaft (4.000 Stroke) *center counterweight **Internal Balance**

Boostline connecting rods bushed fit pins, ARP 2000 bolts (6.125 Length)

Diamond LS2K forged pistons, H-13 .225 wall wrist pins (*Fits 12 degree LS7 Heads*)

Total Seal AP Steel Piston ring set, 1.5mm Steel top ring, 1.5mm Napier second ring, with 3.0mm oil rings for power adders

Clevite H series race rod and main Bearings

Performance coated cam bearings

Compression Ratio with 62cc head 10.9:1 (Turbo / Nitrous)

Compression Ratio with 70cc head 10.7:1 (Turbo / Nitrous )

Rated to support 2000 Horsepower

Note: *Camshaft & timing chain not included*

*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.