Mr_president

iTrader: (38)

well i need to know this me and my buddy have been though an on going saga with this company that put his 383 together and last time it dynod with stock stall stock gears and no boltons with mild head work did 320 and 360 with a hot cam . now we have a fuddle 3200 stall 3:73 gears cc503(which i think is to small), 58mm throttle body maf ends.........what do you think and what are you recommendations?

harvickgm

iTrader: (10)

to be honest i think that cam is going to be to small for that motor... and really dont think you are going to meet the power level you or your friend wants... if i were you i would look at the LE3 cam... that should give you pretty close to what you want.. but also that big stall is going to show lower dyno numbers...

96capricemgr

iTrader: (1)

Return the MAF to stock.
The 503 can work for a MILD stroker don't think it will hit your goal though unless the heads are damned good and probably not even then.

Mr_president

iTrader: (38)

whats wrong with granateli maf ends? the maf is stock still

any suggested cams with specs please? i dont know to much about lt1's

93_z28

does he have to pass emissions?if so then the cc503 is as big as you can go

Mr_president

iTrader: (38)

he wont pass already! well the only thing i can think of is a cc503 with a 150 shot would be nice

96capricemgr

iTrader: (1)

Modifying the MAF destroys it's calibration requiring extensive tuning work to recalibrate all for no gain. Modification of a MAF + mailorder tuning can be a great recipe for a blown motor, happend to more than a few folks.

If you want to disagree with me first look into exactly how a MAF functions and you will undersatand how replacing or modifying the ends affects calibration.

Mr_president

iTrader: (38)

ok no maf ends then. i put maf ends on my car and it never blew up but i will listen and will not let them put them on thanks...

lets talk cams!

gm847?
or cc503 and nitrous?

ABA383

iTrader: (1)

I'm a huge a fan of smaller duration cams with larger lifts in 383s with stock casting LT1 heads...Mine is a 226/234 .568"/.568" custom from Joe Overton ground by Erson..My heads are LT1s ported by LPE and Eric Bradby with 2.00/1.56 valves and makes just shy of 400 rwhp on a Mustang Dyno (which I don't care too much about because, imho, dynos are just for tuning, track mph is my hp judge)...Anyway, I'm not an expert I just have seen great results by sticking to 220ish/230ish with lifts around .570 or less with LT1 casting heads...

Another good cam off the shelf is the LPE 219/219 .560/.560 which is what I was going to use until I found Joe and Eric...The smaller duration cams have such good street manners and my track experiences with them have been very positive...I run right up there with guys with much bigger cams...and I'm not done yet...

--Alan

FASTFATBOY

iTrader: (23)

A better cam choice for an off the shelf cam would be:

GM 847

CC 306

GTP 6 ( I have one for sale)

I would get a custom grind if it was me. Call Crower.

First thing I would do is get some exhaust and a GOOD tune.


David

87Lt1Monte

iTrader: (1)

Well im the example of the 383 baby cam 219 219 560 560 (w/ 1.6 rocker) i put down just around 350 rwhp and 400 rwtq .. (my intake was SuperRam) i have taken this combo with a 3 speed and 3.23 gears on 3 hour trips.. Not even worried about anything. Awsome street manors.

slick1851

O god these cams are so over used...get a real cam into that motor and stop being like the other LT1 guys who feel the need to under cam there cars...

big dave

Well if he's in the same boat I am, EMMISSIONS, cam considerations are going to be very limited. It sounds like the 503 or even the gm846 may be his best choices.

If he isn't worried about the sniffer test, there are quite a few off the shelf cams that will get him pretty close to his goals. As others have also stated, custom grinds may be the best way to go.

streetrod93

iTrader: (8)

im with slick1851 on this one, if there is no sniffer, cam the **** out of it, if you don't have to daily drive it, get a little radical...if it's not overkill, it's not enough :-0)

lt197formula

iTrader: (6)

Is it a dd and what heads is he using?

Like 96 said get the maf ends off and I would highly suggest a custom cam.

onephatZ28

iTrader: (8)

My buddy has a 383 with the comp 503 cam and AFR haeds,A4 trans, and he made 374rwhp and 390tq. I go with a biger cam.I do not see your buddy making over 400hp

slick1851

Notice how all the fast guys have custom cams, and all the slow 12 sec stroker cars are using off the shelfs......


NOT EVERYONE! JUST MOST OF THEM

Mr_president

iTrader: (38)

bump update! air to fuel is at 10.0 and made 294rwh 296 rwt....put a lt4 knock modual and msd opti going to fix the tune and shoot for 390 or so!

speed_demon24

iTrader: (6)

Good luck, the fuddle stall is gonna loose alot of power over the stock stall, and the 503 won't gain much over the hotcam, so you will probably end up with a lower dyno # than with the hotcam and stock stall.

Mr_president

iTrader: (38)

well remember last time the car was 9:5 to 1 now it is 11.2 to1