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Discussion Starter · #1 ·
i've decided to build a 393W. What is the cheapest way to stroke my 351 to a 393 with around 450-500 horses without nitrous or a supercharger? What mods will i have to make? my budget is about $3500. Thanx.
 

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I bought a crank from here, used KB 392 stroker pistons, Crane retrofit hyd. roller cam, Edelbrock 6025 heads, Edelbrock performer intake, Holley 650 DP carb.

I guess I have the HP that you are shooting for, the car (Full bodied 68 Cougar) ran a 12:71 last Saturday.
 
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Discussion Starter · #3 ·
freeflowing heads / intake /carb and a cam to utilize it all is key to making power with stroker engines. Big stroke needs lots of air so head choice is critical. 500 + hp is no problem on
pump gas .
 

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I myself am building a 408 stroker. I am kinda going the no expense spared route... Probe industires premium stroker kit, dart or svo block... 2.75in mains and 9.5in deckheight, either AFR 205/225s or Trick Flow Hi ports/TW "R", custom cam. I have been talking to different engine builders etc trying to get the exact specs on the cam i should use... leaning towards Ed Curtis cam/heads or Bennett racing Cam/heads. Bennett says he can get me 600-615HP with TFS HiPorts and a custom hydrolic roller cam. With that setup and a manual tranny I should be making a between 500 and 560RWHP. And according to some calculations of weight and proper traction it should put me into the 10s. I also plan to spray which hopefully will put me in low to mid 9s.
 

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I am in the middle of building a 393, my budget is also in the $3500 range, but I don't think I'll make it. I used the Scat crank and rods, KB #364 pistons, I am planning on using the Roush 200, 64 cc heads with minor port work for better flow, and a mild cam for street driving. My car will not be a race car, but I am still looking for appx 450 hp and a little more for torque. Hopefully I will be picking up my engine from the machine shop today or tommorrow. Feel free to PM me if you want details on the components I am using.

For others building this motor, I would like your input on cam choices, what are you using and what kind of idle/performance do you expect.
 
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Discussion Starter · #6 ·
i know that the 393 can make some good power, but would it be cheaper(if possible) to make that same amount of power with a 351W without stroking it? and if so, what parts would i need to make 450-500 horses with a $3500 budget?
 

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As they say gotta pay to play and speed aint cheap. Unless you already have a fair ammount of parts for a 351W including the core its not going to be very easy to build it for $3500. Stroker crank,rods,pistons will cost between 1000 and 1500. You will need new cam/lifters (definately want to go hydolic roller). There is another $400-700. You will also need heads. Depending on what you want to spend that is another 1200-1800. You will probably need a new intake,carb,headers,etc etc. Lets not forget machine work,balancing,and assembly. A lot of this you can done if you know how... But if you need a machine shop etc to do it all its not going to be cheap. If you can live with around 400~ HP then you can do it for less without stroking.
 
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