|
Re: Is there a good link on a 383 build on here????
[Re: scatpacktom]
#848793
11/08/10 10:18 PM
11/08/10 10:18 PM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
Years ago Andy Caldwell ran low 13s with a pure stock blueprinted 383 in a 4000 lb 70 Super Bee.
again what's pure stock? I call pure stock something that is exactly the same as it came off the showroom floor. Not something that has been to a machine shop and has been decked, squared, blue printed, re-balanced, had a valve job....and so on.
Only thing I had like that was a 70 Charger S/E 48k miles, new rings, bearings, t-chain. Stock heads, intake, 4bbl, 4 speed w/ 3.23 gears and factory dual exhaust went 14.88
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: BeeFreak]
#848797
11/08/10 11:20 PM
11/08/10 11:20 PM
|
Joined: Jan 2003
Posts: 8,936
Holly/MI
Dean_Kuzluzski
master
|
master
Joined: Jan 2003
Posts: 8,936
Holly/MI
|
The factory stroke for a 383 is 3.38. Relatively short for any big block. Point is, rpm's are required.
My 69 Rr ran 13.79 at 102 with a 3.91 gear. This had a 284/484 cam, TM-6 single-plane, 750 AFB, closed chamber "door stop" 516's with the 1.60 exh.valve.
I added the 1.74 exh. valve, template/bowl ported the heads, 3" exhaust and went to a 4.30 gear. 13.08 at 106. A crappy 1.99 60 ft.
This was all with an unknown seriously ragged on shortblock. Factory Mopar HP motors didn't really have the compression as advertised. Good compression makes a better air pump at ALL rpm's.
Personally, I'd do the 3.75 RB crank stroker deal to work with your 3.55 gear. ALSO, check into what guys here refer to as a "quench" motor and make it a priority. Then you can manage some real compression...........hence, power.
R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: JoesMopar]
#848801
11/09/10 01:36 AM
11/09/10 01:36 AM
|
Joined: Mar 2008
Posts: 390
kentucky
superbyrd
enthusiast
|
enthusiast
Joined: Mar 2008
Posts: 390
kentucky
|
seriously,with the parts you mentioned you already have,a fresh rebuild on your shortblock with a quality set of cast pistons(if it needs boring),freshening of the heads,a comp cams extreme energy series cam and springs,and you will have no problem getting your car into easy mid 13's and faster. and that is on a "budget" .a normal working guys budget (that covers 95% of the folks definition of budget on here) not jay leno's budget. if you really think you need stealth aluminum heads,an expensive stroker package,a super cool quench build,etc,etc,  to put together a good,solid,relaible,budget 383 to put your car in the mid 13's.........please,please,please stop drinking the bong water......
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: BeeFreak]
#848802
11/09/10 04:29 AM
11/09/10 04:29 AM
|
Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
|
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
|
I think most budget performance rebuilds are based on using Hypereutectic flat top pistons because of the lower cost. Keith Black and speed pro have several choices, but the speed pro pistons do not have valve reliefs, and may sit further below the deck (low compression), so the KB pistons will usually be you best choice in the affordable priced pistons. Next is cylinder heads. This is where the power is made, and throwing a bunch of money and time at the old stock heads is not the best bang for the buck. The two most common choices are the Edelbrock RPM or 440 Stealth heads (these also require reduced wrenching head bolts.) For intakes, the Edelbrock RPM works with a wide range of cams and applications. A mild 383 usually only needs a 750 cfm carb.
1-3/4" Headers and 2.5" to 3" exhaust are common.
The stock rod bolts are the weakest link, and need to be replaced if re-using the stock rods.
If you have the extra money for a stroker kit (about $1200-$1500 above the cost of the stock stroke rebuild), you get a new and stronger crank, rods, and forged pistons. If doing a stroker, do the whole kit because most of the affordable pistons are designed to use the aftermarket rods with the 0.990" piston pin, and some of the cranks /rods are designed for the 2.20" rod bearings.
The cam needs to be chosen that works with your intended application, compression ratio, and fuel octane, but for a mild 383 it will usually be something like the XE268 or Voodo 60303 (also a 268 duration cam) if using mild gear/converter/compression. You can go with a larger cam with higher stall, etc.
With the stroker you will usually end up with higher compression, and alot more displacement (496 cid with a 4.25" stroke), so the engine will want a larger cam and it will make more power.
The stroker will want at least an 850 cfm carb and 1-7/8" to 2" headers.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: scatpacktom]
#848803
11/09/10 09:12 AM
11/09/10 09:12 AM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
Apparently "Pure Stock" is over a second faster than what you call pure stock. 
true, the 3.23's and 14" bias plys didn't help.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: dulcich]
#848805
11/09/10 09:58 AM
11/09/10 09:58 AM
|
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
|
Quote:
Quote:
Quote:
not sure if this is what your looking for but here is a pretty good 2 page read 450 HP ain't to bad  Ron...
http://www.moparmusclemagazine.com/techarticles/mopp_0209_383_engine_restore/index.html
This is the article , just take the HP numbers with a grain of salt , time that was done that dyno was known to be giving out INFLATED numbers .
Tell me more, RR John. Maybe if your EMC engine would have actually run you could have had some first hand experience on said dyno... but it failed and you chumps never had the guts to try again. Well, anyway it saved you being embarrassed by my smoking your azz.
In usual fashion, you are basing your comments on nothing. The engine made about 335 hp stock, about its rated HP.
-dulcich
Steve maybe you need to brush up on your reading because the engine did run and make it to the prelims, The EMC changed the rules and only took 3 engines from the Detroit prelim instead of 5 as stated in the contest outline.
Does belittling myself and the Moparts team on the public forum make you feel like more of a man?
Some of the team thought of doing another contest but with how poorly run the challenge was it was decided it made no sense to waste the money to do it again.
By poorly run I mean making rule changes and getting them to contestants 1 month before the prelims, almost 3 months after the contest started .
Last edited by JohnRR; 11/09/10 10:22 AM.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: dulcich]
#848806
11/09/10 10:06 AM
11/09/10 10:06 AM
|
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
|
Quote:
On the other post, I take it personally when someone bags on me on my job that I put a lot of work into.
-dulcich
Steve , I'm not bagging on you or your job, I'm bagging on the WESTECH DYNO, I remember before the EMC challange that you would DEFEND the numbers coming from that dyno when they were questioned on this site saying they were accurate. After the 03 EMC challenge it came out that the dyno was giving inflated numbers, I remember reading it in one of the mags, not sure if it was Hot Rod or Popular Hot Rodding , but it seemed to be enough to cause the EMC to stop using it and switch facilities? Though I can see the switch to the making more sense, from a money and logistics/time standpoint .
Last edited by JohnRR; 11/10/10 09:40 AM.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: superbyrd]
#848807
11/09/10 10:17 AM
11/09/10 10:17 AM
|
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
|
Quote:
seriously,with the parts you mentioned you already have,a fresh rebuild on your shortblock with a quality set of cast pistons(if it needs boring),freshening of the heads,a comp cams extreme energy series cam and springs,and you will have no problem getting your car into easy mid 13's and faster. and that is on a "budget" .a normal working guys budget (that covers 95% of the folks definition of budget on here)
not jay leno's budget.
if you really think you need stealth aluminum heads,an expensive stroker package,a super cool quench build,etc,etc, to put together a good,solid,relaible,budget 383 to put your car in the mid 13's.........please,please,please stop drinking the bong water......
Maybe you need to change your bong water, CAST PISTONS ???
383's need compression and the cast pistons available are so far down in the hole that getting compression with one will require expensive machining of the block, heads and intake to make it all fit together.
My Dart went 14.18 at 98.7mph at the PS drags in '06 weighing 3600lbs, stock 56k long block right down to the original plastic coated cam gear and timing chain that was almost loose enough to pull the chain off without removing the gears. I came back home and it went 99.7 with no changes at all except for being at a track near sea level. Only thing not stock on the car was the 2.5" mandrel bent exhaust pipes , no crossover. No it wasn't a barn burner but I felt it had 13's in it if I could have gotten it to 60ft better and with a fresh timing chain, but I never got the chance to do that.
The new engine only major change is going to be getting the compression up to the advertised compression ratio of 10.0 which is easily attainable on a stock 68-69 383 HP shortblock by cutting the heads to 80cc.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: 451Mopar]
#848808
11/09/10 10:26 AM
11/09/10 10:26 AM
|
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
|
Quote:
I think most budget performance rebuilds are based on using Hypereutectic flat top pistons because of the lower cost. Keith Black and speed pro have several choices, but the speed pro pistons do not have valve reliefs, and may sit further below the deck (low compression), so the KB pistons will usually be you best choice in the affordable priced pistons.
The Speedpros do not have valve reliefs but they have a taller CH than the KB pistons, the bad thing about the KB's is their CANYON like valve trough at 5cc(6cc??, one needs to use the KB400 with the DOME to get anything that resembles compression into a 383.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: BeeFreak]
#848810
11/09/10 11:33 AM
11/09/10 11:33 AM
|
Joined: Mar 2008
Posts: 390
kentucky
superbyrd
enthusiast
|
enthusiast
Joined: Mar 2008
Posts: 390
kentucky
|
Quote:
My Dart went 14.18 at 98.7mph at the PS drags in '06 weighing 3600lbs, stock 56k long block right down to the original plastic coated cam gear and timing chain that was almost loose enough to pull the chain off without removing the gears. I came back home and it went 99.7 with no changes at all except for being at a track near sea level. Only thing not stock on the car was the 2.5" mandrel bent exhaust pipes , no crossover. No it wasn't a barn burner but I felt it had 13's in it if I could have gotten it to 60ft better and with a fresh timing chain, but I never got the chance to do that.
wow john,um,thats,um,impressieve....
your advice is well founded and always appreciated. to the original poster,he is right.
my 67 coronet at 3700#s,100,000+ mile 400,boat anchor unported 516 heads,comp XE268,cheapie summit headers,performer RPM,750 holley,2 1/2 non-mandrel bent duals,2400 converter,3.55's,run on 255/60/15 drag radials, struggles to lay down 12.94-13.10 (well over 50 time slips to prove it) with the pistons .115 in the hole. yeah,what ever you do poster,make sure and get all the compression you can get.it's incredibly cruicial. my coronet sure needs it. which,consequently,would easily hand that dart,it's azz. 
Last edited by superbyrd; 11/09/10 11:36 AM.
|
|
|
Re: Is there a good link on a 383 build on here????
[Re: superbyrd]
#848812
11/09/10 12:55 PM
11/09/10 12:55 PM
|
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
|
Quote:
Quote:
My Dart went 14.18 at 98.7mph at the PS drags in '06 weighing 3600lbs, stock 56k long block right down to the original plastic coated cam gear and timing chain that was almost loose enough to pull the chain off without removing the gears. I came back home and it went 99.7 with no changes at all except for being at a track near sea level. Only thing not stock on the car was the 2.5" mandrel bent exhaust pipes , no crossover. No it wasn't a barn burner but I felt it had 13's in it if I could have gotten it to 60ft better and with a fresh timing chain, but I never got the chance to do that.
wow john,um,thats,um,impressieve....
your advice is well founded and always appreciated. to the original poster,he is right.
my 67 coronet at 3700#s,100,000+ mile 400,boat anchor unported 516 heads,comp XE268,cheapie summit headers,performer RPM,750 holley,2 1/2 non-mandrel bent duals,2400 converter,3.55's,run on 255/60/15 drag radials, struggles to lay down 12.94-13.10 (well over 50 time slips to prove it) with the pistons .115 in the hole. yeah,what ever you do poster,make sure and get all the compression you can get.it's incredibly cruicial. my coronet sure needs it. which,consequently,would easily hand that dart,it's azz.
I don't think it's impressive either, your sarcasm is noted. I wasn't posting it to impress, people were throwing out pure stock numbers and I just put that out as a comparison as to what an actual FACTORY built engine produced in my factory big block Dart.
I sure hope your Coronet would hand my car it's azz considering the modifications it has , if it didn't then something, given your expertise and knowledge, is surely lacking .
|
|
|
|
|
this is one of the more interesting 383 threads we've had in awhile...
