“ESP” features SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, 0.125" radii for use with narrowed bearings, chamfered oil holes, shot-peened, nitride hardened, X-rayed, magnafluxed, and sonic tested. Recommended for use up to 1500 HP.
Lightweight has the same features as standard, with gun-drilled mains and lightweight counterweight design. Featherweight has the same features as standard with gun-drilled mains and ultra-lightweight counterweight design.
Armor Finish (AF) - Surface finishing process that results in an incredibly slick surface. Resembles a chrome finish.
- Rear Main Seal Style:
- 2-piece
- Engine Stroke (in.):
- 3.250 in.
- Crankshaft Material:
- Forged 4340 steel
- Engine Balance:
- Internal
- Lightened:
- No
- Requires Narrow Bearings:
- Yes
- Rod Bearings Included:
- No
- Main Bearings Included:
- No
- Rod Journal Diameter (in.):
- 2.100 in.
- Main Journal Diameter (in.):
- 2.449 in.
- Rod Length:
- 5.700 in.
- Crankshaft Snout Style:
- Standard
- Balancer Bolt Thread Size:
- 7/16-20 in
- Weight:
- 52 lbs.
- Quantity:
- Sold individually.
- Notes:
- 350 Mains
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen I
- Engine Sizes:
- 5.3L/327
- Years:
- 1968-1969
