House99SS

Looking into a 96 Z28 project, I'm wanting some info on a 383 or 396 buildup..anyone got some info as far as fuel system upgrades needed,head choices,and what type of power should I expect..Im a big Ford guy and just got out of the Mustang gig after the last couple years..Im trying to go into the mid 11's on the motor and spray it into the low 10's..Can it work? also, would a TH400 be the choice tranny for something like this..I know it will take some good suspension and Ive had luck with the BMR stuff in the past..any and all info and opinions welcome ..Looking for some places to get a rotating assembly as well..Thanks alot..

House99SS

anyone??

My Red 93Z-28

With 383's, contact Lloyd Elliot about his head and cam packages.
Or you can check out AFR's heads, and get a matching cam. Just a start, some other people will be able to give you better, more exact replies.
As far as injectors, you will have to go with at least 30's probably 36's.

WS Sick

Hi, You will have a blast with a stroker F-bod.

Fuel system will need some bigger injectors (30-36#ers) and I sugest a 255lph in tank pump to handle everything youre wanting to do.

For the strokers I would go with no less than AFR 210 or 220 CC heads, have them worked a little for that extra flow.

With around 11:1 compression and some heads flowing 280CFM plus with good mid flow you should see from 410 to 440 RWhp pretty easily. A custom ground cam is the way to go, there are several here on site and some vendors that do excellent jobs, look them up.

The TH400 will work fine, but you'll miss the overdrive, so unless its a track queen I'd pass on that. But get the 4L60 Built right to hold.

My set-up is a 10.5:1 383 with mildly blended AFR 190CC heads, a GM 847 cam (234/242 .050,535/558 lift 112 lobe sep),stock intake, 52mm T/B,30# injectors, racetronics 255 lph in tank pump,Hooker Long tubes (1 3/4 pri.) 3 inch mufflex Y,3 inch hooker cat-back, 3000 stall,3.73 rear gears.
This is in a full weight (3750 w/me) T/A and M/T sprotsman pros on the rear (stock WS6 stuff up front)
My best so far is an 11.92 @ 115.4 mph.

House99SS

Sounds like a good start, thanks for the info..I heard the 4L60 is weak, any truth to that?? the car Im looking at has 4.10's and was just redone but Im still leaning towards a 12 bolt for the strength...

WS Sick

People have good luck with the 7.5, but the majority that go fast switch over before the grenade happens.
The 4L60E can be built as good as a TH350 can. (but not as cheap, plan on 900$ to 2000$ for a good one)

Tekprodave

If your goal is low 10's I would not use a 4L60. It's only good to mid 10's at best. If you want the overdrive and a good t-brake option look into a 2004R. It won't be cheap though.

Formula03

Another choice on heads would be the new trick flows and have them ported by lloyd altogether that would run you about $1700 (at least thats what it was going to be when I was gonna have it done) and they should flow 290+ cfm. I am running 30# svo injectors (I think at 45psi they are actually operating at about 34#). I will second the custom grind cam, dont waste your money on an off the shelf cam when you have all the time and money invested in the rest of the motor. If you are going to piece your stroker kit together yourself, I would recommend calling Seco performance 800-633-3864, they stock a full line of eagle specialty products and have really good prices. The last thing I would say is get a good tune and spend the money on a good converter.

Formula03

I just noticed your from Illinois, where? If your close you can come and take a look at mine and I can point you in the direction of a few good machine shops and places that deal with f-bodies.

House99SS

Im in S.Illinois, right by Gateway International Raceway..Looks like I have some good info to start this up..SO the 4L60 will go into the 10's? Heres a newbie ??, arent the LT4 heads basically a stock type head and wouldnt an AFR or the Trick Flows be a better setup? Anyone run Pro Topline or Dart heads on these? Ill hit some of the webpages from this post and get some more info form them as well..Thanks for the help, and keep the info coming..

House99SS

who can I contact about building a tranny? Im not concerned with OD, and the brake would be optional..not really looking to get back into the dragstrip to much and our roads arent very forgiving on a brake..

House99SS

Ttt... :d

Formula03

I dont know who could build you a good trans down there but there are some very good shops in Springfield (Irwin&Dumbar, Illini Trans., Schlosser Trans[the best in my opinion], Interstate) and if you need an excellant machine shop with good prices try Mcaky's napa and machine in Virden. Also, you might want to give the Horsepower Factory a call in springfield, they are a performance shop that specializes in f-bodies, 217-523-dyno. Both, co-owners have 10's f-bodies, they know there stuff and have very resonable prices.

sharpe

I'll be looking them all up soon. Thanks, Formula03. If I was to take one of them my LT1, what would you say it would cost me to have them turn it into a 383? I know it depends on how fast you want to go, but I'm talking about a good set up without going crazy that I can put back down in my car and start driving. $2000? $4000? $6000? Would they help me with a tune you think?

S.J.S.

If your going forged like I figure you are, the shortblock alone will run you around 2500 to 3k. Then heads, another 2k for good ones. Custom grind, 1.6's, 30#'s. Your looking at about 6k just there. I don't know what you have already as far as even a car but if your like me and had nothing. I figure your looking at around 12k and up to go into the low 10's. I assembled mine myself and everything cost me 10k and thats without heads.
I'm talking I had to buy everything...headers, exhaust, rebuilt my tranny, torque converter, injectors, OBD1 conversion. All the little things will add up all the way to the gauges.

Hope it helped and didn't discourage you. If have any questions feel free to ask.