Need 340 Build Advice

I would go with a set of KB pistons (10.1) with a set of 308 heads over the eddys for more heat on the street, iron will also give better driveability with a carb. As for the cam I would go with something like a extreme energy from comp cams like a .507/.510 lift, I believe this is the 284 cam. As for the rods get a good set of early 360 rods as they are the same as the 340s and very durable. We ran a 250 shot on them without any problems. The most important part is the rod bolts as this is the weakest link in the engine. The 3310 will work fine with some mods done to it. Then just make sure all the machining is done properly including the balance.


BJR Racing