Pontiac 400 455 4340 Forged Steel Crankshaft ST-4.25 M-3.25 RJ-2.200 RMS-2Pc Ext

Pontiac 400 455 4340 Forged Steel Crankshaft ST-4.25 M-3.25 RJ-2.200 RMS-2Pc Ext

SKU: PCE276.1140
Vendor
Speedmaster
Regular price
$1,449.19
Sale price
$1,449.19
Regular price
Sold out
Unit price
per 
Tax included.

Brand: Speedmaster
Part Number: PCE276.1140
Part Type: Crankshaft
Product Line: 4340 Forged Steel
Rear Main Seal Style: 2-piece
Engine Stroke (in): 4.250 in.
Crankshaft Material: Forged 4340 Steel
Engine Balance: External
Lightened: Yes
Requires Narrow Bearings: See notes below
Rod Bearings Included: No
Main Bearings Included: No
Rod Journal Diameter (in): 2.250 in.
Main Journal Diameter (in): 3.250 in.
Minimun Rod Length (in): 6.700 in.
Balancer Bolt Thread Size: Standard
Crankshaft Snout Style: Standard
Quantity: Sold individually.
Notes: Check the bearing to crank radius clearance. Rod bearings may need to be chamfered or alternatively use narrow rod bearings.
Tool: Stroker Combinations
These Speedmaster crankshafts are made from the same strong aircraft-quality forging as standard-weight cranks, but have profiled counterweights for less weight. Speedmaster lightweight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled aero-wing counterweights and have straight shot and chamfered oil holes. Speedmaster crankshafts are nitride-hardened, with large radii on all journals for superior wear resistance, and use lightening holes in all rod throws.