427 stroker motor with blower

It is not easy to get compression down on a 351 to a good point for forced induction, so I t would be really tough on a 427. You will need about 108cc's for piston dish and combustion chamber combined. I'm not saying it can't be done, but it will be all custom $$$$. I'm not trying to be mean but this might be too much to take on with out any blower experience. I'm starting with a 351 turbo, when if things go wrong it won't be as expensive to fix. Are you trying to make over 1000hp?

Hmmm... very intersesting build... gonna put it in a rocketship?!?!

The 1200 is gonna be at it LIMIT providing enough airflow to supply the 427 let alone creating any boost. If you go by paxton's site, the 1200 is at its limit at 1000 CFM. Let me do my math... at MAX CFM you are gonna be generating 5 PSI with the 1200 (assuming 6000 max RPM), and that would be changing the supercharger pulley on the heads unit. Oh by the way, that will void any warranty you had. You really need to step it up to a Novi 2000 if you want to stick to Paxton. Stepping up to the 2000 MIGHT be done with kit 1001810, but more than likely will take some custom brackets. If you are happy with the 5 PSI, then maybe you can run this kit. It would have to be the passenger mount system 1001839. It will bolt on, but you will need a longer belt and a different conical air filter. Now granted, you can "overspin" the 1200 and get more out of it (again, voiding you warranty), but it is like a stereo speaker, the harder you push it, the shorter its life.

Now, with your engine, you need to evaluate your compression. You can get 8-10 PSI on a carb engine with up to 9.5:1 compression (rough estimate) without fancy timing equipment, electric fuel pumps (boost reference the stock fuel pump), and still live on pump gas. What do you plan your 427 to do? I am gonna guess that with a 60cc head that you are going to be hard pressed to get to 9.5:1. I would say that the Novi 1200 spinning it max at 6000 would be good... gives you 5 PSI, and I think you can stick with pump gas.

Carburetor. For a blow-thru application, I would have a Holley custom built for your purpose. Sean Murphy Induction out of California does an excellent job. He delivers a carb that, out of the box, usually requires only a little idle adjustment. I am guessing he will recommend a 700 Stage 2, but that is purely a guess.

Last, I would hold off on the juice until you get everything else done. You may not even want it after the stroker and the blower!

I have the set-up you are looking at, but I would not consider putting a blower or turbo charger on it. You would have to run 108 octane all the time with a blower unless you got the compression way down. I run only 5 degrees vacuum advance on the street with 93 octane and anything more causes extreme pinging. Besides that you have not addressed your suspension at all to handle all that power.

What are your plans for chassis and suspension? Big hp numbers are great, IF you can use them.

jhop1 said:

Im thinking on building a 427 stroker for my 66 mustang, I was just wondering how much power im looking at with this combo.

Alot. But without knowing how much boost you plan on running, and more details on the induction system, your guess is as good as mine.

Basically I need some suggestions etc.. but let me know what you think about this combo and what I should do. Also im looking to run 91 octane so let me know if this setup is do able if not I might just get the regular 427 stroker kit with a 200 shot of nitrous.

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I run 92 octane pump gas on a 393 stroker with 10 lbs of boost. The induction system is blow-through, with a bonnet rather than the carb enclosure. I've retarded the ignition timing to 28 total, and it's a regular street driven car.
Static compression ratio is 8.8:1 RWHP is 574, RWTQ is 592 at the last dyno session.
Yes it's do-able on pump gas. No problem.

You're going to need a hell of a lot more than shocks. What is your intended use of this car? Drag racing? Corner carving? Street driving?

jhop1 said:

OK well say instead I build the motor with the same parts put with like 10.5:1 or 11:1 compression ratio, a big cam, and put a 200 shot of nitrous in place of the supercharger, what kinda numbers would that turn out?

And im planning on getting edelbrock shocks all the way around, complete suspension upgrade.

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10.5 or 11 compression is still at the threshhold of pump gas. Adding nitrous to it is deadly without more octane. I thinks you are gonna need to switch to racing fuel when you go to the track.

It would be a deadly fast motor either way... you should have a lot of fun!

jhop1 said:

Im going to use this for street/strip, so im wondering what cam would be best all around and still run on the street. Also what kind of suspension would I need if you guys could please recommend some parts or something it would be great, and Ya i figured that id have to run 100 octane when I goto the track and spray the nitrous but with the motor being so powerful i wont need to run the nitrous on the street, so its ok. Well if you could please let me know it would be great, also what gears do you recommend because I have 3.55's now but with a bigger cam wont i need lower gears? and im also debating on wether to get an aod tranny let me know what you guys think.

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An Art Carr AOD would be lovely behind that beast. You might lose some ET, but when you pair it with the 4.11 gears you will want for the track, I dont think you will mind during everyday driving!

Suspension... subframes, good shocks, underride traction bars (or something more substantial). A roll cage might be useful to stiffen stuff up. Slicks are probably a must at the track, otherwise you are just gonna spin em.

jhop1 said:

Im going to use this for street/strip, so im wondering what cam would be best all around and still run on the street. Also what kind of suspension would I need if you guys could please recommend some parts or something it would be great, and Ya i figured that id have to run 100 octane when I goto the track and spray the nitrous but with the motor being so powerful i wont need to run the nitrous on the street, so its ok. Well if you could please let me know it would be great, also what gears do you recommend because I have 3.55's now but with a bigger cam wont i need lower gears? and im also debating on wether to get an aod tranny let me know what you guys think.

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Please do not take offense to this as I am not slamming you just discussing things.

Do you have any experience driving high hp cars? Based on the questions you are asking I don't think you realize just how powerful of a setup you are contemplating. While it is great fun to think about a huge hp engine in your car you have to be realistic. Our cars are light weight, narrow track, short wheelbase and aren't setup for decent size (let alone big) tires. In my opinion unless you are used to driving a beast of a car you are not going to be happy. EVERY component will have to be upgraded to the level of the engine: trans, drive shaft, ujoint, rear end, axles, suspension, chassis, etc. Some serious suspension and chassis mods are required to harness the grunt of the powerplant you have described. If you can't put the power down you'll have a 600 horse muscle car that gets beat by stock hondas (don't laugh, I've seen it happen). If you have considered all these things then forgive my soapboxing, but I have seen too many people get crazy with the engine only to regret it later. Just make sure you are sure.

I have exactly what you need jhop1 . I have a brand new..never fired 426 Windsor I'd sell ya for $5500 FIRM !!!. Has Eagle forged steel crank, Eagle H-beam rods, Custom Ross forged pistons ( 11.5:1 comp) Custom grind cam 304 dur with 652" lift, Edelbrock Victor Jr. aluminum heads ( 2.05 int. 1.60 exh), Edelbrock Super Victor intake, complete Competition Cams valvetrain, ARP everything,Ford Motorsport SFI harmonic balancer, Melling hi-volume oil pump, etc... It's fully balanced, blueprinted..you name it, it's been done . It's ready to rock...all you'd need is a distributor & plug wires, water pump and a carb and you're rolling. Have plenty of pics if you're interested