Picked up my engine today

[BadRATT]

FINALLY got around to picking up my 305 I dropped off ages ago. Had it bored .30 over,new cam bearings,new freeze plugs,hot tanked and the mains checked and had it decked all for 200.00 dollars.Seems like a good deal.Now the guy who does work said I should run cast pistons because I am not really looking to do anything radical with this motor.I did order my thumber cam for it too,the smallest one.Is he really right about running cast pistons..?

 

[fuzz]

Good price on the machine work! Nothing wrong with cast pistons in a low compression street motor, that's what comes in them from the factory.
Summit has a rebuild kit with cast pistons,rings ,bearings and gasket set and oil pump for $275 but if you check around you can probably find it at a lower cost.

 

[Gastrick]

Cast and forged pistons require different bore clearances. Forged pistons expand more when hot and require clearance for such. If your machinist bored your block with cast pistons in mind, I would follow his recommendation. There's nothing worong with cast pistons in your application. I usually buy my pistons first and send them to the machine shop with the block. I would check piston to wall clearance after you get tour pistons to make sure that you are in spec.