janaka

iTrader: (7)

I'm looking to build something in the next little while and I already have a set of TSP 5.3L heads (milled 59cc).

I am wondering at what point that these heads will become a restriction for a larger CI motor- looking at the 400~ci level for the build . My intake will probably still be my 90/90 combo. Car will definitely be NA no FI in my future. Looking to know so I can plan my budget for the build either with these or sell these and buy new.

I've only seen a few posts with these heads on 400+ci motors but looking to see what people's thoughts are.

Thanks.

GTOworshiper9

iTrader: (5)

You can put them on a 400+ cube shortblock but they are very very far from optimum as far as being able to flow the amount of air the 400+ cubes needs