Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy 400, 400 Main Journals (No Spacer Bearings Required) - 3.750" Stroke, 5.700" Rod Length, 2.100" Rod Journal 30300110 COMETIC MLX (Multi-Layer Stopper) gaskets

COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion

10-32 Thread Stud

Does not fit AODE/4R70W transmission

550" Long Steel Silver

Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy 400, 400 Main Journals (No Spacer Bearings Required) - 3.750" Stroke, 5.700" Rod Length, 2.100" Rod Journal 30300110 COMETIC MLX (Multi-Layer Stopper) gasketsEagle forged 4340 steel cranks feature a non twist forging, . 125" fillet radiuses for superior strength so chamfered narrowed bearings required, nitrided surface, &amp micropolished to &lt 2 ra. Intended for the most demanding applicationForged AISI ASME certified 4340 steel with multi stage heat treatment for superior strength Service: Eagle connecting rods and cranks are designed and manufactured to our specifications. Some simply purchase generic