These PBM Rotating Assemblies offer race proven quality components at a reduced package price. Forged 4340 crankshafts, H-beam rods, forged pistons and file fit rings are standard in these popular combinations.- 406 cubic inch
- 3.750 stroke x 4.155 bore
- PBM Forged 4340 Steel Crankshaft
- 6.00in H-beam rods
- Flat Top Forged PBM Pistons
- Comp Ratio 12.5 @ 58cc / 11.6 @ 64cc / 10.5 @ 76cc
- File Fit Rings
Other Combinations Available - Custom Assemblies our Specialty - Please Inquire Hundreds of stroke & bore combinations available |
Cams / Lifters /Timing Sets
