Motor idea. Is it possible?

[QuartermileCuda]

For a few years I have been locked in an ongoing battle with my buddy of who can be the fastest. (I'm losing currently.  ) Anyway I need a new engine setup to beat a 500 whp Trans am. Just the other day I had this Idea come to me but Im not to sure of how it will work. I would really appreciate it if I could pick someones brain. This is what I was thinking of doing.

Stroke 360 to a 408.
Low compression Pistons.
Change fuel system to alcohol friendly carb, lines, and fuel pump so it will accept E85.
Procharger. (Not even sure what kit to use or where to get it)

Then there are all of the different odds and ends that I would have to take care of. Such as cooling, intake, Cam, Headers... The list goes on. I really want to keep the car streetable and not just a track car. Would anyone be able to help with telling me what would be good combination's or if this is even possible?  Thanks!

[femtnmax]

For the small block stroker, several forum members are saying the block needs to be sonic checked for too thin cylinder walls, and one comment was that many blocks end up needing at least one cylinder sleeved.
Use a good set of high flow cylinder heads to get the cfm flow to those cubic inches and go for it.
Some will say a big block will get you the tq and hp without so much fuss...is this an option?   Stroked 383 or 400 combos are said to run well.  The bone yard here has several 383 blocks laying around.

[QuartermileCuda]

The thought of doing a 440 has crossed my mind. My father has one laying around the garage but I am already setup with a good small block. If I was to use a BB I still would like to do the E85 and Procharger Combo. Thats what I would like find out if its possible or not.

[Chryco Psycho]

very possible & has been done

[moper]

Fastest at what? Drag racing? road racing? flat out on the highway? What does the car have now? What year Firebird?

[QuartermileCuda]

Fastest at what? Drag racing? road racing? flat out on the highway? What does the car have now? What year Firebird?

Yes. Whoever is fastest at the strip is number one in our crew. Sadly its only whoever is fastest in the 1/8th right now. We havent made the trip out to a 1/4 mile track. My car currently has a 360 with a moderate cam and a 6 pack. (It was a budget motor and I wanted to drive the car.)  My father has a 416 that he is going to let me borrow to keep my friend at bay before he mods his fire chicken that he just bought. Its an 02 LS1 that doesn't have any mods so far. (right now he is beating me with a supercharged 3800 Monte Carlo instead of the bird. Sad I know.) But I want/must be faster than him sometime in the next two years and still looking to be street drivable.

[Road_Runner]

1/8 mile is all about hooking up & gear ratio along with decent power.  The holeshot is almost everything since you don't have too much opportunity to run somebody down in the eighth.  You didn't mention what rear gear you're running and if you're running an automatic what stall speed your converter is.  For the 1/8 I'd be looking at something around 3.91 or 4.10 at least and a minimum 2800 stall converter or higher to get your rpms up and let you launch hard.  Of course you won't be getting too many MPG with that setup and unless you like high revs you'll be in the slow lane on the highway (trust me I know).  You didn't say what times your friends turkey bird is running so if he has a similar setup and 500 hp, you're going need something in that neighborhood to have a chance. 

Later, Jim

[the_engineers]

EFI-Cuda did something like this, plus fuel injection.  He's got a thread around here somewhere.

[moper]

If it's for drag racing either will do. If you have a small block 727 it will be cheaper to stay small block. A 4" LA with good heads is the equal of any 4.15 stroke big block with good heads and will be about 100lbs overall lighter. Plus the added bonus of using your headers and exhaust now. No 3.75 stroke 440 will respond like a 408/416 will without making it rather rough on the street. So I'd go with that. Stroked LA block, decent heads, and you can either run a lot of gear for the 8th or simply run something mild and only use two gears.

[Oldschool]

Put a bottle on it and spray it.....        

[QuartermileCuda]

1/8 mile is all about hooking up & gear ratio along with decent power.  The holeshot is almost everything since you don't have too much opportunity to run somebody down in the eighth.  You didn't mention what rear gear you're running and if you're running an automatic what stall speed your converter is.  For the 1/8 I'd be looking at something around 3.91 or 4.10 at least and a minimum 2800 stall converter or higher to get your rpms up and let you launch hard.  Of course you won't be getting too many MPG with that setup and unless you like high revs you'll be in the slow lane on the highway (trust me I know).  You didn't say what times your friends turkey bird is running so if he has a similar setup and 500 hp, you're going need something in that neighborhood to have a chance. 

Later, Jim

I have 3:91s with a 2500 stall converter. Least Thats what its supposed to be because I think the guy made it wrong. As of right now my buddy Turkey Bird (Thanks for his new nickname) is running 7.7's in the eighth. He expecting to run maybe even high 6's by the spring.

[QuartermileCuda]

Put a bottle on it and spray it.....     

The bottle has crossed my minds numerous times. But I think I would enjoy having the power at my foot rather than a switch.

[3800power]

(right now he is beating me with a supercharged 3800 Monte Carlo instead of the bird. Sad I know.)

 

[QuartermileCuda]

The Monte Carlo is currently running 8.7 in the eighth

[3800power]

The Monte Carlo is currently running 8.7 in the eighth

Really?  Last I checked it was an 8.402 at 86.91?