400"+ LS Stroker Kit

400"+ LS Stroker Kit

Includes:
Wiseco Piston Kit w/ Rings
BTR 4340 Forged H Beam Connecting Rods
BTR 4340 Forged 4" Stroker Crankshaft
ACL Race Main Bearings
ACL Race Rod Bearings

Optional:
Heavy Duty Pins (Recommended for 700+HP)

Compression Ratio:
Compression ratio available 8.7:1 to 13:1. We will contact you after purchase to get more information to ensure you get the compression ratio you want. 

Wiseco Piston Kit w/ Rings
Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco’s Professional Series.

- Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
- ArmorGlide® Skirt Coating: seizure resistant, friction reduction, and quieter operation
- Fully machined crown features
- Precision ring grooves, anti-detonation groove, and additional ring seal improving features
- Forced pin oiling
- Designed and built to withstand heavy to severe duty performance applications

BTR 4340 Forged H Beam Connecting Rods
State of the art 4340 H-Beam Connecting Rod. They feature heat-treated, stress relieved  and shot peened bodies. The C/L-C/L length is 6.125" with a 2.100 bearing housing and bronze bushed .9278" pin bore. The cap and rod are serialized at the parting line to ensure proper mating after disassembly. BTR inspects them for bearing housing dia. , pin bore dia. ,bend/twist and C/L length. They are pre-torqued with high pressure lube and 7/16-20 x 1.600" ARP 2000 bolts. Sets of 8 are matched within 2 grams overall. The rods weigh in at approx. 665 grams. Laser marked on the beam with the BTR logo, the rods are individually bagged (VCI) and sealed. 

BTR 4340 Forged 4" Stroker Crankshaft
BTR's Premium, 4340 Forged Crankshafts are available for serious street & race LS engines. Each crank is core-hardened using nitride for improved strength, bearing life, and size tolerances held to +/-.0002". BTR has either a 3.622", 3.900" or 4.000" stroke along with three different reluctor wheel options, including standard factory 24 & 58 tooth wheels, or an upgraded 24 tooth BILLET wheel. A standard wet sump snout and 6-bolt rear flange will allow you to bolt on your factory balancers & flywheels/flexplates or the many aftermarket pieces offered.

- 2.100 rod journal diameter
- .125" radius on both the connecting rod journals and main journals for increased strength
- Chamfered oil holes for improved oiling
- Leading edge chamfer and radius on counterweights

ACL Race Bearings
ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are standard components in Race engines that have set records and won championships from Mexico to Bonneville – from sport compact drift racing to small block NASCAR, IHRA and NHRA cmpetitions. The unique combination of design, metallurgy and engineering provides Race Series performance bearings with the endurance and capability to perform where others cannot.