HP gain of 10.5-1 pistons vs 8.8-1 in a 273.

Looking good. If your short block is together I wouldn't mess with it. The Egge pistons will get you about 9.6/1 with milled heads. Run what you have and it will perform well. If you want a tire smoker build yourself a 400 horse 318, a 340 or a 360 but with those combinations you may need upgrades to the drivetrain.


I'd like to add he could also bolt on an Edelbrock D4B. If possible maybe switch the heads to 920s. With stainless valves the flow excellent. Of course he'll need some gear to make that little 273 scream.