Increasing the stroke on these turbo Buick engines dramatically improves throttle response, torque, turbo spool, and overall power in relation to boost. We have noticed with the hundreds of these engines we have done over the years how much better these cars work after increasing the displacement.

We are now offering an all forged stroker rotating assembly kit with a long rod that is affordable. This rotating assembly uses Wiseco forged pistons, moly rings, .927” pins, K1 6.350” forged 4340 H-beam rods w/ ARP 2000 7/16” cap screw bolts, and forged 4340 3.625 steel stroker crankshaft. The crank uses stock V-6 Buick rod and main bearings.

Parts Included:
Wiseco Pro Tru Forged Pistons/Rings (WIS PT109H3 - Your Choice of Size)
3.625 4340 Steel Forged Stroker Crankshaft (WRE CSGN3625)
6.350 H-Beam 4340 Steel Forged Connecting Rods (K1T BH6350ARLB6-A)

Compression Ratio:
8.39:1 w/ stock deck (9.525") and .065 Head Gaskets
8.5:1 w/ 9.515 deck and .065 Head Gaskets
8.78:1 w/ 9.515 deck and .051 Head Gaskets
9.0:1 w/ 9.515 deck and .040 Head Gaskets
9.45:1 w/ 0 deck (9.490) and .040 Head Gaskets

Part Number: WRE RAGN3625K6350W

Description: Turbo Buick 3.8L V6 Stroker Rotating Assembly Kit with Wiseco Pistons, K1 Technologies Long Connecting Rods, and a 4340 3.625" Stroker Crankshaft.

* Light clearancing may be required when using a 3.625 steel forged crankshaft.

Please select cylinder bore size when ordering.