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.- 331 cubic inch
- 3.250 stroke x 4.030 bore
- PBM Forged 4340 Steel Crankshaft
- 5.400in H-beam rods
- Flat Top Forged SRP Pistons
- Comp Ratio 10.4 @ 58cc / 9.7 @ 64cc / 8.6 @ 76cc
- File Fit Rings
Other Combinations Available - Custom Assemblies our Specialty - Please Inquire Hundreds of stroke & bore combinations available |
Cams / Lifters /Timing Sets
