Eagle 157144080 Street & Strip Rotating Assembly Kit 4.250in Stroke 4.080in Bore

The Eagle 157144080 is a Street & Strip rotating assembly kit. It bundles the crankshaft, H-beam connecting rods, forged pistons, rings and bearings into one assembly. It is intended for pump gas, naturally aspirated street engines, and offers an alternative to reworking original parts.

Key Features:

• 4.250 in stroke and 4.080 in bore
• H-beam connecting rods, 6.635 in long, forged from 4340 steel
• 7/16 in ARP 8740 connecting rod bolts
• Forged 4032 aluminum Mahle pistons with inverted dome face and -26cc dome volume
• Full-floating piston pins, .990 in diameter
• Plasma-moly file-fit rings with a barrel-faced plasma-moly top ring and reverse twist iron second ring; ring thickness 1.0mm, 1.0mm, 2.0mm
• Main journal diameter 2.749 in; rod journal diameter 2.200 in
• Crankshaft flange has 6 bolt holes
• Rod and main bearings included (O.E. replacement type)
• Internal balance type; the assembly is supplied unbalanced

Not included: damper, flexplate/flywheel, thrust washer and oil rail support.