I thinking about switching my 509's to 540's
So far I have dart dominator intakes that are converted to injection with 2000cfm throttle bodies.
I need to buy heads, looking for 9.5 comp with 89 octane.
I need to make close to 700hp and torque with a hyd roller.

Do you think it is possible??

I'm no builder but comparing what mine were turned into several years ago.....700 out of a 540 running 89 will be tough. Spinning it up approaching 6,000 is probably the only way.

if you dont have many hours on your 509's i think the best bang for your buck would be to add a power adder,,like a pair of pro chargers which will work well with what you have..easy 700+ hp..get hold of eddie young ..he has done a few with throttle bodies and real reliable..and as for 89 fuel,,adding meth injection should work..

YES without a doubt........... we've done it. Your going to need good exhaust too. pm me for more info if you'd like
Mike

Hello Mike
Do you care to share with us?

ttt

Baja,
You can get there with a set of dart pro 1's 355 CNC's and a good single plane intake both with a good port job, even in addition to the cnc work there's an additional 5% air flow to be gained tickling them some more by hand. 1050 dominator and good exhaust (tube headers) nothing less or all you big stuff up top is going to run out when your exhaust chokes up. Cam is a proprietary grind.

Mike 11 wouldn't 355 by way to big, I was thinking about 325, 310
thanks

baja27,

You are correct on both.

Bob

355 is definitely too big for a 540. I have a 598 and I am only running a 345cc, with some port work done to it.

I think you can get close to 700hp, but probably not over 700, especially not on 89 octane.