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building fast 383's #1765682 03/01/15 02:28 AM 03/01/15 02:28 AM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	without stroking. what are best common sence or easiest ways of making good power out of these engines? i myself am now thinking a single 75 mm turbo is the way to go. i guess there are a few ways to look at it. really low buck low compression std head engines. ported std heads 9:1 + comp & cam, maybe stall. new pistons , alloy heads, cam, stall & gears all bolt ons . then fast street/strip / bracket. then race. i guess i'm in the fast street - race engine range.

Re: building fast 383's [Re: 383ute] #1765683 03/01/15 03:38 AM 03/01/15 03:38 AM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	i'd really like to see what combinations people have used & what results they had. i'm involved in 2 383 engine builds atm, one in a 72 cuda & other in a 69 A body ute/pickup 3200lbs. cuda has ported 516 heads 2.08/1.74 valves new Klines, springs retainers locks from "hughes". tm6 inlet 1" spacer 750dp hood scoop purple 509 cam timing chain, kb +.030 -6cc dome hyp pistons with arp rod bolts. 727 & 8 3/4 3.23 . no converter or gears yet. 69 A body pick up indy ez 76cc heads 10.7:1 static comp, heaverly ported street dominator manifold 3"spacer, 750dp 68 hemi dart scoop. 1.6 roller rockers, mopar .577 cam. 564ish lift after lash ( ez heads 295 cfm @ 550" lift from hughes site" & 252* @.050, 110* ls. 4advanced. arias -12cc domed forged floating pistons on prepped std rods & crank. arp r/bolts, main & head studs. block is resleeved on all 8 cyls & 1/2 filled. all balanced as well as 1/2 oil pick up & deep pan . 3500 stall reverse pattern shift 727 alloy pan & braced 8 3/4 3.9 gears. this is the info i have on my ute & friends cuda both have headers & 2 1/2" mandrell exhausts. both arn't built yet so i got no advice on these. though can tell you my ute went best 13.4 & 104mph with 3000 stall 3:55 bw 6cyl diff 26"225 tyre & worn out std 383 w/std 906 heads custom 509/511" 312/318 108*LS cam. worn out whole timming system .0105 piston clearence, ultra low compression, unported street dominator 1" adapter 750dp. but couldn't set timming. Last edited by 383ute; 03/01/15 03:48 AM.

Re: building fast 383's [Re: 383ute] #1765684 03/01/15 11:14 AM 03/01/15 11:14 AM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	A Procharger on a healthy and near stock short block would probably make 450 HP pretty eaisly with blow through carb. Much less custom plumbing and tuning vs the turbo... and probably easier to get right the first time.

Re: building fast 383's [Re: 383ute] #1765685 03/01/15 01:44 PM 03/01/15 01:44 PM
Joined: Jan 2003 Posts: 8,682 Buford, GA I_bleed_MOPAR master
I_bleed_MOPAR master Joined: Jan 2003 Posts: 8,682 Buford, GA	The 383 in the Charger is nothing special but pretty strong. Mike McCandless built it and ran it in a 3500 lb. RR for a short time. I have most of the specs at home but what I can remember is it has Ross 9:0-1 pistons, Comp "540" cam, 906 heads, balanced, and a Performer RPM intake w/ a 750 Holley. IIRC, best ET was 7.15 in the 1/8th with a 4k converter (never thought to ask what gear). '71 Charger 383/727 '17 Challenger SXT (Wifeys car )

Re: building fast 383's [Re: I_bleed_MOPAR] #1765686 03/01/15 01:54 PM 03/01/15 01:54 PM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	John should chime in as he is the resident expert on 383's. I think the hardest part is finding good piston w/o spending a ton of cash. BUT if you are going to boost it compression shouldn't be an issue. Fast is relevant to the size of your wallet. And depends on what you already have. If you have nothing you'd probably better of starting w/ a 400 or 440. As the cost of internals is all the same. A lot depends on what you want the car for. If you are looking at making 450, there's no need to boost it. If you want to make 550+ of usable power, (meaning drive it anywhere) than yes boost is much better. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: building fast 383's [Re: Mr.Yuck] #1765687 03/01/15 01:59 PM 03/01/15 01:59 PM
Joined: Mar 2006 Posts: 9,894 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,894 MI, usa	A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug

Re: building fast 383's [Re: dvw] #1765688 03/01/15 02:37 PM 03/01/15 02:37 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	Quote: A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug I'm thinking with a 75 mm turbo & eddy heads 700+ with 10lbs .

Re: building fast 383's [Re: 383ute] #1765689 03/01/15 02:53 PM 03/01/15 02:53 PM
Joined: Nov 2004 Posts: 2,825 Sk. Canada RemCharger master
RemCharger master Joined: Nov 2004 Posts: 2,825 Sk. Canada	Is the ute a track only deal? And what kind of fuel will you be using. Are the indys max wedge ports?

Re: building fast 383's [Re: 383ute] #1765690 03/01/15 02:55 PM 03/01/15 02:55 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	i'm now at a point that my tri y 1.7/8 headers will hold me back top end. & then my carb & inlet manifold cam & oil system is the next step after that. well it seems that for the same money as a good custom set of headers & 3-3 1/2" exhaust , i can get my self a borg warner 75 mm turbo, c&s e85 blow through carb & log type exhaust out to duel pipes from xpipe back. i'm thinking a set of rods, the pistons i have, cam & head gaskets & coverter & i'll be maxing out my drive line & i'll call it quits there.

Re: building fast 383's [Re: 383ute] #1765691 03/01/15 03:09 PM 03/01/15 03:09 PM
Joined: Mar 2006 Posts: 9,894 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,894 MI, usa	Quote: Quote: A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug I'm thinking with a 75 mm turbo & eddy heads 700+ with 10lbs . I don't think so. Doug

Re: building fast 383's [Re: RemCharger] #1765692 03/01/15 03:11 PM 03/01/15 03:11 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	Quote: Is the ute a track only deal? And what kind of fuel will you be using. Are the indys max wedge ports? no it's a street car that's getting closer to a track deal. maybe a set of flashing lights away from being a track car. it will go togeather na for now on 98 pump gas if boosted will be duel fuel 98 pump for starting/warming up & e85 for boost. & no indy's are standard intake window atm. i reckon it's a good little combo for now. i'm hoping for mid 11's or better & with some weight loss other mods may touch the 10's.

Re: building fast 383's [Re: 383ute] #1765693 03/01/15 03:14 PM 03/01/15 03:14 PM
Joined: Nov 2004 Posts: 2,825 Sk. Canada RemCharger master
RemCharger master Joined: Nov 2004 Posts: 2,825 Sk. Canada	With e85 you could build a real stout n/a motor.

Re: building fast 383's [Re: dvw] #1765694 03/01/15 03:24 PM 03/01/15 03:24 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	Quote: Quote: Quote: A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug I'm thinking with a 75 mm turbo & eddy heads 700+ with 10lbs . I don't think so. Doug maybe not but after seeing some of the times & mph some of the guy's are getting with very basic small blocks & street weight cars , & theres a bunch of these guys using cheap holeset diesel turbos & e85 it makes me wonder what a free reving 383 will do with good heads.

Re: building fast 383's [Re: RemCharger] #1765695 03/01/15 03:36 PM 03/01/15 03:36 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	Quote: With e85 you could build a real stout n/a motor. well that was the plan. then me mate rang me & told me about these guys using holsets & e85 & blow through carbs & costs of custom headers ect. i'm ata point where i need to start milling my heads & better cam new head gaskets to gain more compression for the e85. a mate is upto 14:1 in his big block chebby & his thing gets better & better with compression & runs heaps cooler. but if i'm going turbo down the track i'm best leaving my heads alone.

Re: building fast 383's [Re: dvw] #1765696 03/01/15 03:40 PM 03/01/15 03:40 PM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	Quote: Quote: Quote: A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug I'm thinking with a 75 mm turbo & eddy heads 700+ with 10lbs . I don't think so. Doug is 75mm big enough to support 700hp? As for headers... I doubt they are going to matter much. It's not like you are going to be able to use anything off the shelf. I sure hope you are good at fab work. Otherwise you'll be paying somebody big money to fab up the hot side.

Re: building fast 383's [Re: Mr.Yuck] #1765697 03/01/15 04:27 PM 03/01/15 04:27 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	Quote: Quote: Quote: Quote: A 383 with stock heads, good pistons, and the right cam would make good power with a 75 MM turbo. With eddy heads I bet you could make 700+ @15psi. Doug I'm thinking with a 75 mm turbo & eddy heads 700+ with 10lbs . I don't think so. Doug is 75mm big enough to support 700hp? As for headers... I doubt they are going to matter much. It's not like you are going to be able to use anything off the shelf. I sure hope you are good at fab work. Otherwise you'll be paying somebody big money to fab up the hot side. on the sites i've been looking at 75 mm support 1000+hp & i have a mate that will make my exhaust logs up & i'll get a 4 1/2" or even 5" hot side down my starter motor side as our steering box is on the other side. it will be easier than 4 into 1 headers. & the logs will allow more power than what my diff will take. so many good things about turbos on big blocks. the 383 will also be a very efficent & have loads of torque even at low boost. so far i'm only working off 50% power gains & thats @ 8psi. i'd say my ez headed 383 will be close to 500hp + 50% thats ball park 750hp @ 8psi. the guys running those holsets in basicly mild small block of all brands are making 750+ at the tyres. btw in south east queensland our altitude is under 300ft & intercooler + dry ice if you need it. it kinda sounds to good to be true. one of the guys has a coronet 450 cid 383 block cross bolted mains indy -1's ported, 91 mm garrett turbo running 7.6 with 16psi. & thats a real basic combo using eagle crank & rods. hopefully somebody who has been turboing big blocks can chime in. when i was last talking to these boys i said i'll be more than happy will 800hp & one of em said yeah at the tyres & they were all laughing about it. Last edited by 383ute; 03/01/15 04:38 PM.

Re: building fast 383's [Re: 383ute] #1765698 03/01/15 05:11 PM 03/01/15 05:11 PM
Joined: Apr 2013 Posts: 345 Nebraska 4 451Cuda enthusiast
451Cuda enthusiast 4 Joined: Apr 2013 Posts: 345 Nebraska	https://www.youtube.com/watch?v=6Ux_0zeEG9I Not my video, just one I saw that reminded me of this conversation

Re: building fast 383's [Re: 451Cuda] #1765699 03/01/15 05:56 PM 03/01/15 05:56 PM
Joined: Apr 2009 Posts: 32 midwest D danbob member
danbob member D Joined: Apr 2009 Posts: 32 midwest	We did a basically stock 383 last year.Stock 906 heads, 8 to 1, torker intake , comp 230 dur. 480 lift hydro cam. Using stock exhaust manifolds. B/W 475 turbo. Holley 750 homebrew carb. Made 586 hp. And 690 ft. lbs. torque at 4500 rpm. I believe Dizusters 360 is making aprox. 800hp using stock manifolds.

Re: building fast 383's [Re: danbob] #1765700 03/01/15 09:42 PM 03/01/15 09:42 PM
Joined: Jan 2003 Posts: 1,413 Johnstown 69dart pro stock
69dart pro stock Joined: Jan 2003 Posts: 1,413 Johnstown	I've always run 383's. Currently I'm running a .030 over TRW piston, .600ish roller cam, otb 440 source heads, M1 intake, 750 E85 carb in my roadster. Best ET is 9.73 I believe @ 133 or 6.11 @ 108 in the 1/8th. I'm in the process of building a spare. Only thing I'm changing is flycut the pistons so I can run a little bigger cam and maybe some better heads. I'd like to throw a little spray at it this year. Maybe 150HP Plate system to dip in the 5.90's or help at the stripe. 33 Plymouth Roadster - 383 - 5.90 1/8th 9.58 1/4 68 Dart - 340 66 Belvedere - 400 Windy Hollow Garage - https://www.youtube.com/@windyhollowgarage

Re: building fast 383's [Re: danbob] #1765701 03/01/15 10:49 PM 03/01/15 10:49 PM
Joined: Feb 2015 Posts: 22 downunder 3 383ute OP member
383ute OP member 3 Joined: Feb 2015 Posts: 22 downunder	just remember these stock engines have iron heads & pistons way down the bores & worn bores ect ect. pinging is what kills engines & the alloy heads will help with that, as well as zero deck & quench, big ports & larger valves nice thick sleeves that are held in place by grout= hi cylinder presure, so mine will hold the presure rather than blowing by the rings. one of the books i was reading said turbo motors respond to all the things that a NA motors like, just the gains are more noticeable. 383 / 400 engines, there not running efficently untill there well into the rev range, just like other over bore engines ie [Edited by Moparts - Family Friendly Site - Keep it clean] bikes & cars indy cars & F1 cars ect i think the sweet spot will be over 6000 rpm. i'll happerly take mine high 6000rpms as 7000ish is the cut off for the oil system.

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