6264 - Full Mod Zenoah 27.2cc 4 Bolt Long Block

This engine now comes with a TR/OBR billet crankcase at no extra cost.

Check out our YouTube channel to view most of our engines in action:  http://www.youtube.com/user/oneillbrothersracing 

Customers Rides: http://www.youtube.com/watch?v=47s-3MNiZXE&feature=email

The full mod 27.2cccc has proven to be one of the most popular engines we build. This is a great way to upgrade to a full mod 4 bolt engine and save some cash. To complete this long block you will need a flywheel, coil, covers, carb and clutch. All of thse items can be removed from your stock engine. Our long blocks come with a complete 4 bolt Zenoah crankcase with bearings, seals, stuffed 2mm stroker crank and full mod top end. All long blocks come assembled as shown in the picture.  

With the higher reliability of the 4 bolt Zenoah engines we were able to achieve more power with out sacrificing reliability. We put all of the knowledge that we have picked up from years of dyno and field testing and came up with a monster.

The following porting and machined has been performed to this long block:

1. Machine combustion chamber for a proper squish clearance without stacking cylinder gaskets
2. Reshape piston
3. Lighten piston
4. Relieve piston to prevent seizes 
5. Modify intake port for better flow
6. Adjust intake duration to our specs
7. Resurface all ports
8. Modify transfer ports for better flow
9. Enlarge and reshape exhaust port
10. Adjust exhaust duration to our specs
11. Re-bevel all porting and stock bevels to prevent damage to the piston and/or cylinder

 
This long block fits:

Off-road Rc Cars: HPI Baja 5B/5T/5SC, MCD, Rampage, FG Marder, FG Marder Race, FG Monster Beetle, FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Traveller,FG Leopard, XTM, Leopard Race, FG Leopard STX, FG Marder Beetle, FG Pajero and most other large scale cars.

On-road Rc Cars: MCD, FG Evo,FG Sportline, HARM,FG F-1 Competition and most other large scale onroad cars.