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» Northern California Ford Owners     » Automotive   » Tech Talk   » 351w to 408 stroker

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Author Topic: 351w to 408 stroker
19and1/2
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Question , I have a 351w out 91 Ford pick up can I do a 408 stroker hci shooting for 500rwhp. Is that possible? With 205 trickflow 11r super victor intake 90 upper intake and custom cam.Thanks in advance

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95gt

Posts: 328 | From: San Pablo | Registered: Apr 2008  |  :
70stang351w
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Was looking at doing that with my 70 fordstrokers 408 10.5 comp with ed's super vic ported upper intake, cam ported trickflow 205's..

Ended up with 393.. still need heads cam intake..

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1996 GT VERT /32v MOD - SOLD
1970 Mustang Coupe M-Code 351w

Posts: 1419 | From: 925 | Registered: Apr 2010  |  :
19and1/2
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^^ thanks did you convert to roller cam who did the machine work what kind of stroker eagle or scat ?

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95gt

Posts: 328 | From: San Pablo | Registered: Apr 2008  |  :
2BlueGeeTees
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500 wheel horsepower is nothing to shake a stick at and in natural aspiration form in your sbf is possible but will come with comprise. First I would start by asking what are your goals and limitations. Are you concerned with drivability? Does it have to pass smog? What kind of a budget are you on? What do you want out of the car (drag, road course, street)? Next thing to consider is can your block support your HP goals? The block is 30 years old, is there meat left on the bone to safely bore the cylinders and stroker clearance. If that is all good you are going to want to start your foundation of machine work to support your goals like align honing, equal deck, radius oil passages, so on and so forth. All said you are likely to be a good few grand into machine work. You will likely need to run a high compression ratio to obtain your power goals which is going to require a good tune on our crappy 91 octane. You will also need a really good and pretty aggressive cam profile. That being said are you going full roller? Hydraulic or solid? Each one will have its own benefits and pitfalls. When it comes to heads and intakes you will get 9 different opinions from 10 different ppl so in that regard I will say I personally didn’t not have good luck with trickflow intakes in my NA stroker but the Eddy Victor 5.0 worked wonders for me. Also I had a set of out of the box AFR heads out perform eddy RPM that were ported and O ringed. When it comes to fuel system there is a ton of possibilities but you are likely looking at a minimum of a 42 pound injector. I would say to build your fuel system for the future if possible, making future upgrades easier and fuel isn’t the place to pinch pennies. The rest of you induction system will basically depend on your intake and creating minimal restrictions. Lastly you will need a good free flowing exhaust. I would do a 1 3/4 inch long tube header. Cut the collectors off and weld on a true 3 inch collector to a full 3 inch exhaust. I truly love the NA stroker route and done right is an amazing animal but I will say going boosted is so much easier with more peace of mind at the same or higher HP levels
Posts: 2315 | From: Vacaville | Registered: Jul 2004  |  :
19and1/2
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Thanks for the input it’s going on a 88gt. It’s going to be a drag car not worried about smog willing to spend 10k I know I have to do suspension work to I have coil overs sub frame connectors. Cobra 13” front brakes will need upper and lower control arms and weld torque boxes ? Is that possible with my budget

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95gt

Posts: 328 | From: San Pablo | Registered: Apr 2008  |  :
2BlueGeeTees
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Building a drag car is an evolving process as for most of us in the real world don’t have the money to put in up front for the car we want and thus our cars usually tend to evolve. You can do a lot with 10k if you put your money in the right places. My advice with a budget of 10k would to not put so much emphasis on reaching 500 hp. You will spend your entire budget trying to get there and may or may not hit your desired number but if you can’t get your power to the ground it was all for nothing. You will end up seeing cars with a lot less power walk away from you. I remember years ago when I started there was a guy at Sac raceway with a white coupe that was a class racer. I believe it was a bracket car. He ran E7TE heads and a stock intake, both of which I’m sure had port work, but the bulk of his build was in suspension, weight reduction, and the all important seat time. His coupe walked away from my build NA 347 like it was tied to a tree stump. I guess what I’m getting at is setting up your car’s brakes and suspension and putting the car on a diet and seeing what budget you are left with for some go fast goodies might be a good approach while you work on your big build.
Posts: 2315 | From: Vacaville | Registered: Jul 2004  |  :
19and1/2
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Well I have a set of edelbrock proformer rpm heads and a tubular gt40 intake I was planning to sell that and work on the 351w but you have a point on putting the power to the ground and spending 10k and no be happy I will work on my suspension and rear end and throw the heads and intake a do a custom cam thanks again

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95gt

Posts: 328 | From: San Pablo | Registered: Apr 2008  |  :
2BlueGeeTees
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Not a problem. It’s simple advice I was given a long time ago that I wish I would have listened to. This is how dumb of a kid I was, my first ever pass at Sac raceway in my 93 cobra was a poor 12.4 or 12.6 time and I did this a the stock cobra 4 lug 4 wheel disc brakes. My brakes were so terrible I couldn’t slow the car down quick enough to make the first turn out to the return road. It was pretty embarrassing and the brakes could have been done for not a lot of money. But I guess that’s the live and learn deal right.
Posts: 2315 | From: Vacaville | Registered: Jul 2004  |  :


 
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