258cc Rotating Assembly Kit - 72mm x 63.5mm For Small Block GX

There may be a 3-4 day lead time on these kits depending on our current inventory of Wiseco pistons.

258cc rotating assembly kit for small block GX200/Clone type engines. 

Comes with the following components: 

Precut .550" compression height Wiseco 72mm two ring piston kit with rings, circlips, and .490 wrist pin. 

Your choice of either ARC 3.525" or 3.575" stoker rod with 1" journal with bearings and ARP bolts. (Fits either Tillotson Racing Block or longer rod for taller TC225 block)

Forged steel 63.5mm stroke crankshaft with .996" journal diameter. 

ARC 6392-2 bearing set optional to set rod bearing oil clearance at 0.0035" instead of 0.0055" (Three and five ten-thousandths of one inch)