Originally Posted by strokin
I'm planning a 400 sbc blown build, using eagle internal balance kit with je 36 dish piston all forged,
Using a dart shp block, carburated, haven't picked cam yet or heads, probably go with afr 220's with a 75cc chamber and a solid roller cam. Plan to run around 9 psi.
Question is, I've built many small blocks up to 450 hp but never built over that and never in a blown application. Are there any tricks for tolerance? Specs? Or any special details I should be watching for when building blown short block? I have a good speed shop here that can do all the machining. Also never done a 400, do I have to worry about steam holes with all these after market pieces?
And no I'm not interested in having my speed shop build it.
You'll have good air/fuel homogenization, but still I'd recommend a reverse dome D-cup dish if possible (example JE Extreme Duty inverted dome p/n 131633-1
). Run the quench measurement as you would NA.