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-   -   1990 Carbed 502....can it easily make 525HP??? (https://www.offshoreonly.com/forums/general-boating-discussion/176635-1990-carbed-502-can-easily-make-525hp.html)

302Sport 01-03-2008 02:17 PM

1990 Carbed 502....can it easily make 525HP???
 
What am I looking at cost wise to produce 525HP.....right now it makes 390HP at the prop..........it has the switchable exhaust and has a closed cooling system...I would like to keep the closed cooling, but the exhaust can go (I like it loud anyway)

BY U BOY 01-03-2008 02:22 PM

about 5 to 6k

RunninHotRacing163.1 01-03-2008 02:23 PM

Start looking for a Blower , and be done with it

Dave F 01-03-2008 04:53 PM

A set of nicely ported ovals, a 226/234 112 .600 hydro roller, 800 Holley and about 9.6:1 should get you there no problem

Get good exhaust since you're gonna replace.

DAVE

fastscarab22 01-03-2008 05:02 PM

just copy a hp 500 but put a crane 721 and rollers rockers and a dart intake, 750 dbl pumper and get the heads ported and polished that should do it with good exhaust

BY U BOY 01-03-2008 05:11 PM

zz502 aluminum heads,intake and a custom grind cam with some roller rockers/lifters,830-850 cfm carb and good exhaust will do the job.


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