blown 427W ideas

[Sage427]

Hey everyone,

I thought i'd post this topic to get some feedback, ideas, and opinions.

I really like the idea of stroking a 351W to a 427 (though risky, I think it'd be ok ) Although most ppl would say go with a 408 or 393. On top of that adding a supercharger with a carb'd setup (something like a Vortech or Paxton Novi 1200, really don't know )

I want it "streetable", however I would like to have awesome midrange power for slight high rev top-end performance for interstate usage. I'd like to mate it to a T56 6spd tranny with perhaps a 3.55 gear ratio.

As far as ideas, I'm leaning toward an Edelbrock RPM Air-Gap and a Lunati Voodoo 268 cam (1800-6200) but when I add a supercharger (I don't know much about superchargers) I need to know what kind of a piston head combo I need for compression. Most stroker kits i've saw use high CR though . I think i might need something like 8.5:1 to 9.0-1. I just don't know what kind of heads I should use. what about Victor Jr.'s? What carb CFM would I need? I have an Edelbrock EPS 800 laying around.

I guess you could say my goal would be to build this block up smart and strong, and let the S/C do the work for making power with the components I use. I would like to see atleast 450RWHP (i'm being modest) lol jk

Any input would be great! thanks

 

[Dark Knight]

AFR 205 or 225's , if you have to, someone could enlarge the combustion chamber. I'd go with a victor intake, an RPM is going to be a restriction for the blower on an engine that size..

 

[Edbert]

Agreed, that many cubes at redline is gonna want short stright intake runners, a full Victor is a good start, but the air-gap until you buy the blower.

Plan on hood clearance issues, and 450rwhp on a blown 427 is not gonna be hard at all, getting the power to the pavement might be your biggest concern.

 

[Sage427]

Hey thanks for the replies! As far as hood clearance I'm going to get an aftermarket one, I'm going to actually refit everything.

I was looking at the Vic manifold, however I wasn't for sure how well they performed on the street. I've also read that strokers do not like to rev past 6k. Would I need to pick another cam?

 

[iskwezm]

I have the vic jr on my 349 and as far as strokers not revving,this thing wil rev to 7500.The cam was a little too big,but i put the blower belt on this past weekend and it made it a lot more driveable.It still need some jetting,but its very strong right now.

 

[Sage427]

I have the vic jr on my 349 and as far as strokers not revving,this thing wil rev to 7500.The cam was a little too big,but i put the blower belt on this past weekend and it made it a lot more driveable.It still need some jetting,but its very strong right now.

That sounds like a mean setup you have going on!