Another 273 commando build .. This one will be a "BEAST"

stroker402 said

still sitting on the build for my 273 .. lot of options out there ............how would a 273 commando engine stock bore with 10.5 compression pistons with a solid 300 dur 600 lift cam respond to trick flow 190 heads 2.02 heads ?
or maybe a procharger ?

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To make crazy NA power you need lost of rpm and very deep gears.
Trick flow heads and 273 would need to spin 9000-10,000+ rpm to get the full use of them.
To make 400 hp you'd need to be revving around 7000 rpm for peak power.
Peak power at 6000 rpm would be about 350 hp.
Peak power at 5000 rpm would be about 300 hp.

I'd go more with something like speed master heads with a solid cam around .500-.525 ish lift 110 lsa and a 225-235 ish duration and at least 4.56 gears.