We highly recommend shipping with FedEx, recently orders shipped with USPS have experienced extended delivery dates.
We will not be responsible for any packages sent USPS
MOST ORDERS SHIP OUT SAME DAY IF PLACED BY 2PM EST.



GX160s are listed under GX200, Racing Motors Hop Up Kit- 212 Predator OHV (old style), Stage 4
For QMA/USAC see or 1/4 Midget Motors

Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Hop Up Kit - GX200 & 6.5 Chinese OHV, Stage 1 Engine, Racing, 212 Predator, Street & Track Special -READY TO SHIP SPECIAL
Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases

6.5 Chinese OHV economically prepared for stock type racing and for off-road applications need more power than stock.

Hop Up Kit - GX200 & 6.5 Chinese OHV, Stage 4 Hop Up Kit- 212 Predator Hemi, Stage 1
Our Stage 4+ kits allows you to customize a kit for your application. The 4+ kit starts with package similar to that of the stage 3 kit but adds a Ported and Milled Head, stainless valves, billet rockers, and a serious cam package. Options include everything from roller rockers to stroker kits. This kit will allow you to build a motor in excess of 20+ hp

Basic kit for improving the performance of GX160, 200s, and Chinese 6.5 Engines. Simple to install, you can expect significant performance increases