Being that i'm new to the game,i need your help.my goal is to get 500 horsepower out of my 455 to play with it in the street .its a 86 4door cutlass,455 with g heads,out of a 71 delta 88 .everything stock but a mild cam upgrade and the moter is bored over 40 ,that was done before i got it.
Still has the v-6 rear.
So what is the main things i need to get this thing smoking!!.

 

Cam,10:1 compression,edelbrock cylinder heads, 800-850 cfm carb, air gap intake and headers. A reputable machine shop and you'll need some $$$! Goin fast in a olds is not cheap!

There are a few guys on this site who can help you out!

 

Wow... 500 HP in an 86 4 door, I would strengthen that car up before throwing that amount of HP and torque at it.

 

That v6 rear will be the first thing scattered all over the road! What do you have for a transmission?

 

Are you new to Oldsmobiles or engines? First thing is to not listen to chevy guys that toss around HP numbers. Oldsmobiles build great torque. In a G body you will have a real fast car with a 455 and not need 500 HP. You can get 500 torque and 400 HP VERY easy with a 455 and in a G body that will scream for the street. If you want 500 HP.... like others said, It is going to cost more money.

 

Its a 400 trans,yea I'm trying to decide on what size rear to put behid it, and that's a very good point about strength .i had planed on upgrading the springs and shocks,i already upgraded the universal joint but what is the main things i need to upgrade to be able to handle the horsepower and doing doenuts,lol.
and thanks guys for the input,i was surprised to get responses so soon!.
also i wanted to say,i still want to be able to drive the car on the freeway,so from my investigation,373 gears would be too much.how about 342or355 gears .

 

I'd start by welding the rear doors shut LOL. Others will chime in on your goals... good luck with your build.

 

Yes I'm totally new to olds and engines.its become an obsession.

 

Welcome to the site, post some pictures when you get a chance. As the others said 400 hp is an easier goal to attain with a lot of torque. You can search the site for a history of build threads to get an idea of what others have done for their builds. Here is a calculator that one of the other members posted a while back for gear ratios.


http://www.angelfire.com/fl/procrastination/rear.html

 

Ok,thanks,now i have a better understandling.so i agree 400 horsepower is a better goal but now lets talk about tork.so what is it going to take for me to get more tork.????.

 

The old saying is... Tell them how much $$$ you want to spend and they will tell you how fast you can go with your 86 4door.

 

For starters, go to Google and type in 455 oldsmobile engine build.