|These Dart or World Block and Lunati 565 cid Balanced Rotating Assemblies offer race proven quality components at a greatly reduced package price. Dart Big M sportsman blocks, forged 4340 crankshafts, H-beam rods with ARP2000 bolts, forged pistons and file fit rings are standard in these popular combinations. Blocks are clearanced for 4.250 stroke.
Other Combinations Available - Custom Assemblies our Specialty - Please Inquire
Hundreds of stroke & bore combinations available