Chevy SBC 350 4.00" 427ci 2Pc RMS Rotating Assembly Kit (F,I 6.0,F +30)

Brand:	Speedmaster
Part Number:	PCE290.1018
Part Type:	Engine Rotating Kit
Actual Engine CID:	434
Bore (in):	4.155 in.
Engine Stroke (in):	4.000 in.
Balanced:	No
Pistons Included:	Yes
Piston Rings Included:	Yes
Piston and Ring Oversize (in):	0.030 in.
Piston Material:	Forged aluminum
Piston Style:	Dish, with two valve reliefs
Piston Head Volume (cc):	-16.00cc
Wrist Pin Style:	Floating
Piston Ring Facing Material:	Plasma-moly
Crankshaft Included:	Yes
Crankshaft Material:	Forged 4340 Steel
Rear Main Seal Style:	2-piece
Engine Balance:	Internal
Connecting Rods Included:	Yes
Connecting Rod Material:	5140 Chromoly Steel

CrankshaftSpeedmaster forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. Speedmaster crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Speedmaster crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. These crankshafts also have a large radius on all journals for improved strength and wear resistance.Connecting RodsThese Speedmaster I-beam connecting rods incorporate all of the best features possible for an I-beam rod, including some strength adders found in H-beam designs. Speedmaster I-beam connecting rods are profiled with clearance for long stroke applications. These connecting rods feature a one-rib cap design for added strength and bearing support, polished beams to eliminate stress risers. Speedmaster cap screw bolts to greatly increase strength and horsepower capabilities.Speedmaster 'I' Beam Street connecting rods are manufactured from high quality 5140 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.