6317 - CNC Ported Full Mod / Signature Series 30.5cc TR/OBR 4 Bolt Reed Case Long Block This top end must be

This top end must be used on a stock stroke G320RC crankshaft

One standard gasket is all that is necessary

Long blocks are complete as shown in picture with reed crankcase

We’ve also kept in mind that there’s more than just HPI’s out there

Complete engine wrap for the G320RC & G340RC engines

6317 - CNC Ported Full Mod / Signature Series 30.5cc TR/OBR 4 Bolt Reed Case Long Block This top end must beAn aftermarket filter is recommended for install in a DBXL! Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to