hey guys im looking within the next month or two into spending some money on the motor of my 2003 "boss" f150.. i wanna get the Street Fighter stroker kit for it, does anyone know about how much hp/tq i will get, it will also be retuned, of course.. thanks

 

HI!... Why not just start with a 5.4 (330c.i) and work from there? Would be much cheaper and easier. You can get 350-400RWH.P in N/A trim.

 

if he has the boss f150, then he has the 5.4, so maybe he wants a stroker kit for that?

 

maybe he is stroking it one inch?



o man that just doesnt sound right....

 

no it didnt... pervert.

 

330 thats what i meant, just hit the wrong key, my Boss has the 5.4 in it and it is semi-built and i have every external bolt-on besides heads, but i am wanting the street-fighter stroker kit, just wondering about what the gains would be and stuff. Also it says its able to rev up to 7200 rpms, that doesnt sound to safe..what do u guys think

 

well its not really how high you can rev it, its how high can you still make power.

 

HI!... You still haven't told us which engine you have. Around here all the "BOSS' F-150's come standard with the 5.4L (330c.i). If you have the 5.4 you can't stroke it to 330c.i due to it's already there. Now if you have the 4.6 then don't waste your $$ on a stroker kit and just get yourself a used 5.4 and build that up instead.

 

sorry, we must be misunderstanding each other my truck has the 5.4L im wanting to put a stroker kit on that, thats why i asked about the 330 stroker kits, slight misunderstanding .. anyways do you guys have any good info on these kits. also what does a stroker kit actually make your engine, would it be something like close to 347, im new to the stroker motor "game" so any info would be great... websites, anything.. thanks

 

also thanks for the comment Built54, i do understand that, i was just curious. the truck will get put on the dyno again to get retuned as soon as i figure out the best stroker kit i can get for the money which is about up to $1500.. labor is free from me and my buddy..any websites again would be nice or just direct url's so its easier to find.. YOU GOT A BADASS TRUCK BUILT54.

 

HI!... Well that's why we are confused. The 5.4L modular engine is stock at 330 cubic inches. There are some stroker kits out there for the 4.6 modular engine to make it 302 cubic inches and 330 cubic inches. Since yours is already at 330 cubic inches you can't stroke it. The 5.4 has a long stroke small bore. This creates a ton of low end torque. There are stroker kits out there for the 5.4 but most require using DARTON sleeves. Plus they need to be rebuilt often due to the terrible rod ratio. If you want to make more power then spend the money and get yourself a set of FOX LAKE STAGE II heads and some custom ground cams. Just those two things were good for about 103RWH.P on my truck.

 

The modular engines do not stroke very much in a stock block. I dont think you could make it up to 347 with a modular motor.
You need an aftermarket block to go any significant size bigger and those cost some $$$ and I belive its mostly due to bigger bore, not stroke. Freshen/beef up your existing motor or do a lightning swap. The hp/$$$ will be much better that way.

I

 

alright, thanks guys... hey built54 or anyone thats got a built 5.4L did you buy all the stuff in a kit or did you have to buy everything piece by piece.. if there is a kit let me know or give me a good website to go to so i can check out all the forged internals

 

HI!... I built mine piece by peice. Here's a link to my build up and the problems I had.

https://www.f150online.com/forums/sh...d.php?t=202950

 

the only stroker kit I know of requires use of a gt supercar block