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Romanbuilt;
A 351-W with stock stroke,forged flat top pistons,good rods,AFR alum. heads with 9.5 to 1 to 10 to 1 compression and a cam in the high 400 to low 500 lift should easily get you 400 hp on pump gas and be street friendly....
I'm running a 351-W,stock stroke,flat top pistons,484 lift cam,early iron heads that have been ported,polished,gasket matched with 1.90 and 1.6 vavles,10.4 to 1 compression.... It has never been on a dyno,but according to the Ford SVO tech it should make 350 hp,it is practically the same specs as the old 350hp crate motor Ford made a few years back....I'm running a Holley 600 dp also....
It idles all day at 750/800 rpms,runs 175/180 degrees on the water temp and pulls like hell thru 5500 rpms,it's a joy to drive around town,no lope,very mild mannered....
This same setup with a good set of alum heads should get another 50 hp and with a few more changes another 30 to 50 hp would not be out of the question....
I love the motor and have a little over 20,000 miles on it now with quite a few 1/4 miles passes (probably 40 or more passes) and probably close to 200 miles of open track driving and have had zero problems with it so far.....
My next motor will be basically the same thing with aftermarket rods and alum. heads and maybe a little more cam (500 to 525 lift).
David
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DAVID GAGNARD
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