Trick Flow small block heads

stroker402 said
I have a question for you all and need opinions ......... I have a 273 commando that has a nice build on it and will run mid 13's now . How would these trickflows react on a little stouter build? like with a bigger solid cam like a erson 286-510lift like the d-dart had , better intake , larger carb , 1/3/4 headers ? stock bore in it now ! so i would need to notch cyl bores for the 2.02 valve heads. going to build a stroker 416 with the tf's in near future..

Trick flows won’t fit the small bore.

273 said
Your not gonna find to much on 273, I'd look up 4.8l LS, 4.6l and even 289 builds see what cams heads etc.. and how it effects the rpm powerband.

An excellent idea for sure. Researching engine builds via old magazines or the current format of you tube videos of smaller engines is a good idea.

To the questioner, @stroker402 , I’d just look carefully at the components used and how well they flow over your equipment. After all, the engine is an air pump and higher or lower flowing parts can have a big effect on output. Ported heads will extend the power band, as well as a better intake, bigger carb, header tube size and exhaust if dyno’d with it.

On a 273, the limiting bore size will require a notch in the cylinder wall to run a 1.88 valve (IIRC) so a well ported head and a 1.88-1.5 or 1.6 valve will be about the best you can do which should be plenty.