Scat 4340 Forged Pro Comp Lightweight Crankshafts Product images may differ from actual product appearance. Perfect for engines needing quicker RPMs These cranks are made of the same aircraft-quality forging as standard 4340 but with profiled counterweights to reduce weight. Crankshaft highlights: Straight shot and chamfered oil holes Nitride-hardened for superior wear resistance Lightening holes in all rod throws .125'' radius on all journals Stress-relieved and shot-peened Aero-wing counterweights increase horsepower by reducing windage CNC-machined for absolute tolerances and symmetry for ease of balance

942-435010-2

4340 Pro Comp Lightwt. Crank Chevy 350 3.480'' stroke For use with 5.700'' rod 2-piece rear seal 48 lbs View this item

$1,038.99 Ships 02/23/12

942-435050-2

4340 Pro Comp Lightwt. Crank Chevy 350 3.750'' stroke For use with 6.000'' rod 2-piece rear seal 49 lbs View this item

$1,038.99 Ships 02/23/12

942-435056-2

4340 Pro Comp Lightwt. Crank Chevy 350 3.800'' stroke For use with 6.000'' rod 2-piece rear seal 49 lbs View this item

$1,038.99 Ships 02/23/12

942-440056-2

4340 Pro Comp Lightwt. Crank Chevy 400 3.750'' stroke For use with 6.000'' rod 2-piece rear seal 50 lbs View this item

$1,038.99 Ships 02/23/12

942-445410-2

4340 Pro Comp Lightwt. Crank BB-Chevy 4.000'' stroke For use with 6.135'' rod 2-piece rear seal 65 lbs View this item

$1,161.99 Ships 02/23/12

942-445425-2

4340 Pro Comp Lightwt. Crank BB-Chevy 4.250'' stroke For use with 6.385'' rod 2-piece rear seal 65 lbs View this item

$1,161.99 Ships 02/23/12

942-444018-2

4340 Lightweight Pro Comp Forged Crankshaft 4.500'' Stroke For use with 6.760'' Rod 8-Bolt Flywheel flange View this item

$1,449.99 Ships 02/23/12