LS 427 Long Block - Stage 2 Boost Series

CNC-Motorsports has quickly raised the bar to a new level in offering high quality long blocks/ Our long 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 long blocks are 100% machined, CNC Machined and blue-printed to our race wining specs.

Dart SHP Pro fully skirted cast iron block, 4.125 bore
Callies Compstar 4340 forged steel crankshaft, 4.000 stroke, 8 counterweight design
MGP Pro aluminum connecting rods with ARPL19 bolts, 6.125 length
Diamond LS2K 2618 forged pistons with .225 wall H13 wrist pins, 9.5:1 +/- compression (-23cc Dish)
AP Steel Premium performance piston rings
H series rod and main bearings
Melling select performance oil pump
Cloyes billet single roller timing chain kit with extreme duty "Z" chain
CNC custom ground Solid roller camshaft *Customized to your need/build*
Crower EduraMax solid roller lifters
Brodix BR 1 13 degree 245 cnc ported port aluminum cylinder heads *Cathedral port* flow 370 at .700 lift
Cometic MLS head gaskets
ARP head studs
Series 3 Manton 11/32 .120 pushrods
YellaTerra Twin Shaft Rockers
This long block is rated to support up to 1750 flywheel horsepower or 1400 wheel horsepower