Performance M short blocks
Level 1 351m 400 $4150 #short400
Your crank turned,
rods reconned with arp bolts
Cast or Hyperutectic pistons
Fully machined block
Balanced assembly
You supply the core
level 2 Stroker all forged 427-444cid $6500 #short444m
Forged pistons (compression of your choice)
Forged 4340 rods
4340 Forged crank
Fully machined block
Balanced assembly
You supply the block
