Eagle Stock Stroke 88mm 4340 Crankshaft for Mitsubishi Evo 8 4G63
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Eagle crankshafts are polished on purpose-built Q-PAC micropolishing equipment. This machinery teamed with specialized polishing media produce a journal polish like no other in the industry. Eagle routinely sees a 2 R.A. or better (sometimes a 0 R.A.!!) on all crankshaft journals. If you are not familiar with those numbers know this: several years ago GM bragged about the incredible journal finish they were able to achieve on the Cadillac Northstar engine. It was heralded as a breakthrough in machining technology. It was a 7 R.A. finish. While this finish is exceptional in its own right it is eclipsed by Eagle's revolutionary ESP Armor Process.

Standard Forged 4340 Chromoly Steel

Intended Application:
Mitsubishi 4G63 7-bolt (93 & up)

Recommended up to 1500 HP

DIMENSIONS
Stroke: 3.4650 in.
Rod Journal: 1.771 in.
Rod Journal Width: 1.050 in.
Main Journal: 2.244 in.
Minimum Rod Length: 5.900 in.
Typical Weight: 37 lbs.
Rear Seal Design: 1 pc
Flywheel Bolt Holes: 8

RECOMMENDED BEARINGS
Mains: no recommendation
Rods: CB1643P

NOTES:
Stock Stroke for 4G63
Use main bearing MS2039P for 93-98 engines
Use MS2261P with TW677S for 99 and newer