rdsk8ter Posted December 31, 2006 Share Posted December 31, 2006 I got a running 350 tpi out of A 1989 PONTIAC TRANS AM GTA so now i need advise on how to get to about 400 ish rwhp. I would ideally like to be around 450 but 400 will do what do you guys reccomend, or not reccomend? Quote Link to comment Share on other sites More sharing options...
240zV8 Posted December 31, 2006 Share Posted December 31, 2006 just to help with peoples responses... what kind of driving are you gonna be doing mostly? Get the right combo of heads, pistons, intake, carb, cam and you should do fine. lol, i'm sure other people will be able to break down a perfect setup so you can price it out. Do you know anything about the engine, like if it's been bored out or anything? Quote Link to comment Share on other sites More sharing options...
CantZme Posted December 31, 2006 Share Posted December 31, 2006 h/c/i + all bolt ons and then some Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted December 31, 2006 Author Share Posted December 31, 2006 it will be a weekend warior/ drive when its nice out to mess with the ricers lol Quote Link to comment Share on other sites More sharing options...
240zV8 Posted December 31, 2006 Share Posted December 31, 2006 if you want to go past 400hp, stroke it out to a 383. I think u'd be happy just cleaning it up and get some fresh pistons, some nice aluminum heads, a matching cam, and a nice intake setup. U'd prolly get a nice 120+ hp right there. other than that it can get alittle pricey depending on the deals you find. I don't know ur budget, but start with heads, cam and intake (if ur bottom end is in good condition) Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted December 31, 2006 Author Share Posted December 31, 2006 I was told that stroking it put the pistons at a diffrent angle that messed up the bolck over time is this true? Quote Link to comment Share on other sites More sharing options...
NCchris Posted December 31, 2006 Share Posted December 31, 2006 Search for posts by member grumpyvette. He's posted a lot of info on the sbc build and knows his schzitt. HTH chris Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted December 31, 2006 Share Posted December 31, 2006 http://www.chevytalk.org/threads/showflat.php?Cat=0&Number=1527608&an=0&page=0#Post1527608 theres NO down side to a correctly built 383, BUT use 5.7" or 6" connecting rods Quote Link to comment Share on other sites More sharing options...
240zV8 Posted December 31, 2006 Share Posted December 31, 2006 u sound like u have some money to spend, you might think about selling the engine u got, and get a ls1. Because building a 383 or similar is going to cost quite a bit anyway. Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted December 31, 2006 Author Share Posted December 31, 2006 dang grumpy you know your stuff think you could help me out I have about 2g to build this engine to where I would have approx 400-450rwhp think you can do it Quote Link to comment Share on other sites More sharing options...
bluedragon436 Posted December 31, 2006 Share Posted December 31, 2006 SBC's are great....and I love the old school Carb setup.... but to tell you the truth probably your best bet would be to go with what 240zV8 said, and get rid of yoru current setup and purchase yourself an LS1 setup to run... This is the setup that I plan to run, but only cause of just a little tuning out of the stock motor and you can get a decent bit more HP then it is already rated at... But that is just what I would do... Quote Link to comment Share on other sites More sharing options...
240zV8 Posted December 31, 2006 Share Posted December 31, 2006 SBC's are great....and I love the old school Carb setup.... but to tell you the truth probably your best bet would be to go with what 240zV8 said, and get rid of yoru current setup and purchase yourself an LS1 setup to run... This is the setup that I plan to run, but only cause of just a little tuning out of the stock motor and you can get a decent bit more HP then it is already rated at... But that is just what I would do... but...u can't do it for $2000, unless you get a donor car and part it out and make ur money back. Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted December 31, 2006 Author Share Posted December 31, 2006 yeah thats why i cant get a ls1 lol they are way to expensive Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted January 4, 2007 Author Share Posted January 4, 2007 ill have it monday dang storms here screwed everything up i am stoked Quote Link to comment Share on other sites More sharing options...
that240guy Posted January 4, 2007 Share Posted January 4, 2007 To make that kind of power at the wheels, you will need to rebuild the bottom end so that it can handle revving a little higher, put a pretty wicked heads/cam package and then put a different intake manifold on it. Either an LT1 intake or the stealth ram intake. Injectors, throttle body, and other things will have to be upgraded too along with a custom chip. You are looking at well over $3,000 more to make this kind of power, and this is assuming you are assembling the engine yourself. If you have never driven a car that runs 13s or faster, then just install the engine and have fun with it. Mod it slowly as you can afford to do so. My stock LS1 makes just over 300 at the wheels and that is enough to make my car go high 11s in the 1/4 with a T56. I wouldn't worry about making 450 plus hp unless you wanna go run 10s your first time out. But that gets expensive. Quote Link to comment Share on other sites More sharing options...
GOTHALOSISM Posted January 4, 2007 Share Posted January 4, 2007 Just get a wrecked crown vic with the 9c1 package ( police car) 94 and newer and pull the lt1,trany and other stuff from it then turn around and part it out to get your money back. Quote Link to comment Share on other sites More sharing options...
gexgexgexgex Posted January 4, 2007 Share Posted January 4, 2007 well this is the cheapest way to hit "around" 400hp to the wheels that i can think of stock motor to the wheels, around 200 hp full exhaust and intake, b/c you have to if your going to put it in a Z 20-40hp+ "Tune" the stock ECM, to take out all the smog stuff etc. 20-30 hp+ Tune for 114 octane 10-25hp+ or water and or meth injection NOS for the rest, and i think the motor should be able to take a 100HP shot no prob. 80 hp or so so at best 320 hp-365hp and this in not hard stuff to do and should not cost and arm and a leg. Also just so everyone knows these are estimated numbers so do not hold me to them Quote Link to comment Share on other sites More sharing options...
that240guy Posted January 4, 2007 Share Posted January 4, 2007 I don't know If I would bother with the high octane. That takes the fun out of it being a street car. But Nitrous is always a cheap solution to going fast. For less than 600 bucks you can have a complete nitrous system with a bottle heater on a window switch and a purge. I probably wouldn't run more than a 125 shot on an old TPI motor. THey have cast pistons are over 15 years old now. Quote Link to comment Share on other sites More sharing options...
Z48LT-1 Posted January 4, 2007 Share Posted January 4, 2007 GOTHALOSISM, Let me be as gentle as I can, but WHAT ARE YOU SMOKING?????? A Crown Vic? With a 9c1 package? Go back and edit your post to say '94-'96 Caprice and make this post of mine completely stupid, eh? Best -- Gary Quote Link to comment Share on other sites More sharing options...
Pop N Wood Posted January 5, 2007 Share Posted January 5, 2007 You're going to need a good chunk of that $2K just to do the swap..... Exhaust, cooling, fuel pump, wiring, reprogramming. Stuff adds up. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.