The same high quality parts we use in our Smeding LS engines, now available in a balanced rotating kit! Start by selecting how much horsepower you plan to make, followed by your engine block's bore diameter, what stroke crankshaft you want, and then your desired piston volume! All rotating assemblies come with coated tri-metal race main & rod bearings, and the correct piston rings for your horsepower goals. The crankshaft will be digitally spun balanced to the weight of the components, on our Hines Legend balancer, ensuring smooth, trouble free operation for many many years!

800hp:
Crankshaft: Smeding 4340 6 Counterweight, Internal Balance, 4.000" Stroke
Rods: Smeding 4340 Forged Steel H-Beam w/ SP8740 Bolts, 6.125" Length
Pistons: Icon FHR 4032 Forged Aluminum, Coated Skirts
Rings: Ductile Iron Top, Napier 2nd, Low Tension Oil
Bearings: King XP-Series Tri Metal

1300hp:
Crankshaft: Smeding 4340 6 Counterweight, Internal Balance, 4.000" or 4.125" Stroke
Rods: Smeding 4340 Forged Steel Pwr Adr H-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: Icon Premium or JE 2618 Forged Aluminum, Coated Skirts
Rings: Stainless Steel Top, Napier 2nd, Low Tension Oil
Bearings: King XP-Series Tri Metal

1700hp:
Crankshaft: Smeding 4340 8 Counterweight, Internal Balance, 4.000" Stroke
Rods: Smeding 300m Billet Steel Pwr Adr I-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: JE Ultra 2618 Forged Aluminum, Coated Skirts, Gold Thermal Barrier & 0.200" Pins
Rings: Stainless Steel Top, Napier 2nd, Std Tension Oil
Bearings: King XP-Series Tri Metal

Assembly & installation of this rotating assembly must be completed by an experienced engine assembler/builder. The bearing clearance & ring gaps must be set to your application. Smeding Performance is not responsible for damage caused by improper assembly, bearing clearance or ring gap.

Rotating kit sales are final, there are no returns or exchanges accepted.