Any Interest in Smallblock 3.79" Stroke - Moparts Forums

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Re: Any Interest in Smallblock 3.79" Stroke [Re: bigtimeauto] #1327966 10/29/12 02:48 PM 10/29/12 02:48 PM
Joined: Jan 2003 Posts: 2,813 Blue Ridge, VA Plumb Wired master
Plumb Wired master Joined: Jan 2003 Posts: 2,813 Blue Ridge, VA	I'll keep on using my 3.79" stroke cranks and Craftsman Truck W8 junk. RIP Monte Smith aka: OutlawFish '98 Bickel Dodge Dakota PST

Re: Any Interest in Smallblock 3.79" Stroke [Re: Plumb Wired] #1327967 10/29/12 03:31 PM 10/29/12 03:31 PM
Joined: May 2007 Posts: 636 Central,Ohio FASTFISH420 mopar
FASTFISH420 mopar Joined: May 2007 Posts: 636 Central,Ohio	For my combo 9.0 deck.. I run a 3.72 stroke 2.25 main with 2.0 rod journal 6 inch rod with a 4.22 bore. Last edited by FASTFISH420; 10/29/12 03:33 PM. 1969 Barracuda 8 second all/motor small block 2014 Shelby GT500 Mustang Uratchko Racing Engines www.URE-RACING.com

Re: Any Interest in Smallblock 3.79" Stroke [Re: mopar dave] #1327968 10/29/12 06:10 PM 10/29/12 06:10 PM
Joined: Dec 2007 Posts: 830 east coast Otherlane super stock
Otherlane super stock Joined: Dec 2007 Posts: 830 east coast	Ask bill what does he think is the best sb head,he will tell you brodix mc head

Re: Any Interest in Smallblock 3.79" Stroke [Re: Otherlane] #1327969 10/30/12 10:46 AM 10/30/12 10:46 AM
Joined: May 2003 Posts: 13,202 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,202 aZLiViN	Loved our 4" stroke W5 mill we had. Of course we require the "kiss" anology when it comes to performance engines. Not sure what the next combo will consist of, but a Ritter block is on the short list of items we'll be using.

Re: Any Interest in Smallblock 3.79" Stroke [Re: J_BODY] #1327970 10/30/12 01:14 PM 10/30/12 01:14 PM
Joined: Oct 2008 Posts: 458 Michigan BPE OP mopar
BPE OP mopar Joined: Oct 2008 Posts: 458 Michigan	Kent is one of them that is pushing me to do the 3.79" stroke. Rod

Re: Any Interest in Smallblock 3.79" Stroke [Re: BPE] #1327971 10/30/12 02:18 PM 10/30/12 02:18 PM
Joined: Oct 2010 Posts: 463 Rescue CA. joes68340s mopar
joes68340s mopar Joined: Oct 2010 Posts: 463 Rescue CA.	Im interested in the 3.79 stroke for 340 mains. I havent checked much, but I cant find anyone selling them anywhere.

Re: Any Interest in Smallblock 3.79" Stroke [Re: joes68340s] #1327972 10/30/12 02:31 PM 10/30/12 02:31 PM
Joined: Nov 2003 Posts: 3,060 Western New York sixpackbee master
sixpackbee master Joined: Nov 2003 Posts: 3,060 Western New York	I am going to do a 4.185x3.79 W9 for a nasty street car. 3.79 is a more efficient way to go. I'll sacrafice a few cubes in favor of puting more power pulses down the race track. Last edited by sixpackbee; 10/30/12 02:32 PM. 1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21

Re: Any Interest in Smallblock 3.79" Stroke [Re: sixpackbee] #1327973 10/31/12 01:09 AM 10/31/12 01:09 AM
Joined: Jan 2007 Posts: 8,043 Mt Morris Michigan mopar dave master
mopar dave master Joined: Jan 2007 Posts: 8,043 Mt Morris Michigan	i'm using a 71 360 block short filled and i can't go 4.185 bore or i would use the 3.79 crank without second guess. i'm stuck with the 4" crank with my block so i'm thinking something like a 6.4" rod with a 1.250 ch mahle piston. this would give a better rod/stroke ratio(1.6) and a much lighter piston than what i'm currently using. http://www.youtube.com/watch?v=aIxaesJ190U http://youtu.be/lCZAaN7fFLg

Re: Any Interest in Smallblock 3.79" Stroke [Re: mopar dave] #1327974 10/31/12 02:00 AM 10/31/12 02:00 AM
Joined: Feb 2007 Posts: 1,025 Las Vegas, NV dodgeboy11 super stock
dodgeboy11 super stock Joined: Feb 2007 Posts: 1,025 Las Vegas, NV	Everything else the same, the shorter stroke will make more horsepower at a higher rpm than the longer stroke, but I would bet that add more airflow to the longer stroke and it will make more horsepower at the same higher rpm than the previous setup did with the shorter stroke. The main thing is whether or not the block can handle all the extra stress of the longer stroke. Now the problem with nascar running a longer stroke is they would have to run larger rod and main journals to make it work. Once they did that then their bearing speed would be excessive and the engines wouldn't want to last in an endurance application at the type of rpm they are running. The other problem is packaging; they would need taller decks to get a similar rod ratio to make it a viable endurance motor for higher rpm. I'm not saying they wouldn't find a way, I'm just listing the problems that I see and why they might choose not to run a longer stroke. Of course if they chose to lower the rpm range, all of my arguments are then invalidated.

Re: Any Interest in Smallblock 3.79" Stroke [Re: dodgeboy11] #1327975 10/31/12 10:04 AM 10/31/12 10:04 AM
Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA bigtimeauto Trophy Winner
bigtimeauto Trophy Winner Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA	Quote: Everything else the same, the shorter stroke will make more horsepower at a higher rpm than the longer stroke, but I would bet that add more airflow to the longer stroke and it will make more horsepower at the same higher rpm than the previous setup did with the shorter stroke. well if we added more airflow for the longer stroke couldn't we just add more airflow to the shorter stroke and make more power once again? i would rather have my piston speed due to engine rpm over stroke. I'll tke the higher rpm, biggest bore, shortest deck and just long enough stroke everyday over those out of square strokers. BB, TT5,Procharged 3300lb Street Car 4.79/154

Re: Any Interest in Smallblock 3.79" Stroke [Re: BPE] #1327976 10/31/12 11:58 AM 10/31/12 11:58 AM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	Bigger cranks on a sb have there place(less rpm=less maintenance).. but on a SB more rpm/will make the power u want. If u can get a 440 and up sb to stay alive at 9000+rpm,that would be interesting to see....especally the head used to do it

Re: Any Interest in Smallblock 3.79" Stroke [Re: fishy340] #1327977 10/31/12 05:47 PM 10/31/12 05:47 PM
Joined: Dec 2005 Posts: 11,709 Fulton County, PA C CMcAllister Mr. Helpful
CMcAllister Mr. Helpful C Joined: Dec 2005 Posts: 11,709 Fulton County, PA	I asked this question recently; maybe this would be a good place to ask again. We have a MP NOS 3.79 crank in the 1053 material. What is the limit and the potential of this piece? I have an idea of using it in a drag race engine in the 650-700 HP area or in a nice street engine. If the results don't match the theory, change the theory.

Re: Any Interest in Smallblock 3.79" Stroke [Re: Leon441] #1327978 11/01/12 12:17 AM 11/01/12 12:17 AM
Joined: Mar 2012 Posts: 168 Washington State, USA W Winchester 73 member
Winchester 73 member W Joined: Mar 2012 Posts: 168 Washington State, USA	Quote: Pro stock does not limit stroke. They limit the cubes at 500. Thats why they run the little stroke and huge bore. More power that way. I just never understood the 3.79 stroke. 3.800" is much more common in higher end engines. If you have a low deck block 3.800 is about the limit for stroke. If I had a tall block I would rather have 4.00" but nothing wrong with the shorter stroke if you don't have room. Leon i think youre looking at it wrong-they limit cubic inches not valve size thats why they go for huge bores-big head breating.this doesnt concern most folks building mopars becus we have a select menu of heads and cubic inches to put under them . nascar engine builders have said that a given cubic inch limit that bore vs stroke is not worth enuff persuing and these guys fight for very little hp

Re: Any Interest in Smallblock 3.79" Stroke [Re: Winchester 73] #1327979 11/01/12 12:21 AM 11/01/12 12:21 AM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	Only if it has 360 Rod Journals and a side of refried beans and salsa please....Rod..Rego

Re: Any Interest in Smallblock 3.79" Stroke [Re: CMcAllister] #1327980 11/01/12 01:11 AM 11/01/12 01:11 AM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,486 SoCal	Quote: I asked this question recently; maybe this would be a good place to ask again. We have a MP NOS 3.79 crank in the 1053 material. What is the limit and the potential of this piece? I have an idea of using it in a drag race engine in the 650-700 HP area or in a nice street engine. It will live for a long time but they have a much shorter life than 4340. I'd use it and replace it after maybe 1000 - 1200 passes. It's all about cycles.... Brian Hafliger

Re: Any Interest in Smallblock 3.79" Stroke [Re: Brian Hafliger] #1327981 11/01/12 09:06 AM 11/01/12 09:06 AM
Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e... cheapstreetdustr master
cheapstreetdustr master Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e...	there are still some classes out there that limit cubic inch in heads up racing... or atleast the weight brake cut off is around 385"cubes.. this crank is perfect for that..and 4yrs ago i could not find a 3.79 crank to fit my needs.. during MY search..I came across a few guys looking for them also..fwiw 365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]

Re: Any Interest in Smallblock 3.79" Stroke [Re: cheapstreetdustr] #1327982 11/04/12 09:02 PM 11/04/12 09:02 PM
Joined: Dec 2003 Posts: 1,325 Orlando Fl Dos Snails pro stock
Dos Snails pro stock Joined: Dec 2003 Posts: 1,325 Orlando Fl	How hard for a 3.75???? Better for a 9 in deck with off the shelf Cheby pistons..

Re: Any Interest in Smallblock 3.79" Stroke [Re: Dos Snails] #1327983 11/04/12 10:22 PM 11/04/12 10:22 PM
Joined: Oct 2009 Posts: 1,267 North, Alabama D-50 pro stock
D-50 pro stock Joined: Oct 2009 Posts: 1,267 North, Alabama	I have a 3.79 stroke crank in my 394 ci motor with 360-2 Indy heads at 10.9 to 1 compression that Brett Miller and Vic Bloomer built and it made 662 at 7300 on 93 octane fuel. I am very happy with the performance so far. I have got a lot of tuning left to do. The best I have ran so far is a 1.34 60ft,6.34 at 108 mph at 2950 lbs.I think there is still alot left in it. I am running a mechanical fuel pump and a 950 holley with no jet changes and no timing changes. I am shifting at 6800. 7449009-CIMG0081.JPG (175 downloads) 1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...

Re: Any Interest in Smallblock 3.79" Stroke [Re: D-50] #1327984 11/05/12 11:28 AM 11/05/12 11:28 AM
Joined: Jul 2006 Posts: 528 N.W. Indiana DblOJoe mopar
DblOJoe mopar Joined: Jul 2006 Posts: 528 N.W. Indiana	Quote: I have a 3.79 stroke crank in my 394 ci motor with 360-2 Indy heads at 10.9 to 1 compression that Brett Miller and Vic Bloomer built and it made 662 at 7300 on 93 octane fuel. I am very happy with the performance so far. I have got a lot of tuning left to do. The best I have ran so far is a 1.34 60ft,6.34 at 108 mph at 2950 lbs.I think there is still alot left in it. I am running a mechanical fuel pump and a 950 holley with no jet changes and no timing changes. I am shifting at 6800. Maybe I could get Vic to clone this for me...

Re: Any Interest in Smallblock 3.79" Stroke [Re: DblOJoe] #1327985 11/05/12 04:18 PM 11/05/12 04:18 PM
Joined: Jan 2003 Posts: 9,146 Now - Port Orange,Fla. Former... MIKES_DUSTER master
MIKES_DUSTER master Joined: Jan 2003 Posts: 9,146 Now - Port Orange,Fla. Former...	Ok,Im gonna ask a stupid question for some but Im not good with math. I have a 360,.040..How many cubes would the 3.79 crank make in my block???

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