3.79 Stroke CRanks
- Thread starter 345man
- Start date
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Joseph24251_200
The Mopar Kid
Maybe he ment to say higher rpm rev's, since the smaller 3.79 crank will spin a lil faster and rev a lil quicker due to less weight.
Mrmopartech
Well-Known Member
A well tune and designed motor will make more power than a stroker motor done by some one who thinks just and a crank and I have more power.In this case the opposite is true.To do a stroker kit,its just not a crank,rods,pistons.You need the cam and heads to match the flow reading of the new cubes.Its no use sucking big cubes through a garden hose,and the other end is true also,sucking cubes through a 6 inch fire hose does not work either.If the owner of the stroker kit,miss matches the wrong parts,the 360 stoker with the right parts will kick its *** big time.Please call Mr.Bobby Joseph at 1-770-443-8874 to prove this piont,mrmopartech
3.79 will make more power, we are building one to replace our 4.00 stroke,I will get my son to explain how later
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Those cranks came as fordged units and are design to be in race cars. Those are some bad-mamba-jamba cranks!
grumpuscreature
Resident Curmudgeon
Surprised that these were so hard to find. Used to be listed in the MP catalog. Only place I could find one was SpeedoMotive. Hope this helps.
YoungBlood
Jolt the Squares
They may be nasty cranks for your small block, but for the sake of all things holy, you can almost build a 408 Shortblock for the cost of that crank alone.
Those cranks make for some nasty 390's range CI's. Got a few running around the area here. There are some benefits to the 3.79 crank over the 4.00, less stress on the block for one.
Check e-bay as they pop up there pretty regularly.
Check e-bay as they pop up there pretty regularly.
You can find this motor for sale in the for sale section . FABO
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you can get new 3.79 stroke forged crank thru www.4secondsflat.com
I like mine - and agree with the analogy FWIW - you can make better power witha 3.79 SB than a 4.00 SB.
I like mine - and agree with the analogy FWIW - you can make better power witha 3.79 SB than a 4.00 SB.
In the broad spectrum of things, once your getting that large, a few cubes aint crap and the crank strength is a bit more mighty than a 4.00 cast crank.
To put things in order, so to speak, I wouldn't trust that cast crank to far by compare to what the forged crank can pump out without breaking a sweat.
For the sake of all things holy (Sorry had to steal the line) do not purchase weak parts for a superior build. IF and WHEN you decided to make some real power, you'll be leaving that cast 4.00 crank behind real fast or in multiple parts. It's cast! Not forged.
When you wanna push the limits, pay attention to what the fastest boys are making use of.
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340srule
Guest
Oh i think cast cranks are just fine there was nothing cheap about my stroker build,it cranks out 520 h.p. and put's my "street car" in the 11.0's,and i've got 2 seasons of racing on it too with NO issues pertaining to the CAST crank...i also might add it comes down to whos doing your machine work and assembling,i'm also running eagle sir rods and everyone keeps telling what "junk" they are,my stroker is living proof they work just fine...
Excellent street parts than can go racing. :salute:
Just so you and everybody else understands, I'm not knocking the cast crank or there abilty to make power and last. But at 520 HP, you fall waaay short of what I was thinking.
520 HP is very respectable :salute: for a street driven car and would for surley make me smile for miles and miles, but I was thinking in the order of 700+ HP to start with. And then go from there.
have to see to believe, but dont see getting more power with less cubes. my email is [email protected]
haplo555
wade
would have to disagree a 4.00 crank used with a 6.300 rod has lighter piston and about the same rod % MAKING 560 AT REAR WHEELS WITH 417 W5 SET UP.
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340srule
Guest
"street parts"...no!! i don't think so,but i'll have to remember that next time i'm at the track,when i'm beating up on the cars with all the race parts,and as far as getting 700h.p. out of a cask crank engine, i'm sure my builder could get that no problem...
AdamR
Big Member
Callies sells the 3.79 stroke crank.
LOL, You have a good combo against the comp. But, I think we'll just disagree on this. I'll say you have street parts to the day I die.
Cast cranks are not race cranks. I wouldn't want to run around or race 700 HP on a cast crank. You go on ahead and do so. Not me.
Your preety happy that you have 520 HP. And thats good. I'll be straight up honest and say I'd be happy as well. But thats not what I'd call a motor for racing. It's low powered with a cast crank.
In a race arena, it is asking for trouble IMO. And 11's is not fast. If it is for you, then thats great and I take nothing away from that or you.
DO NOT be insulted or come back screaming at me, I'm just trying to put into focus a race car. Not something I'd call a street strip car that I would drive everyday to and from work and anywhere else.
For me, that is what you drive. It is simply a case of different strokes for different folks.
I'm sure your engine builder is capable. Why you bring him up is beyond me. But ask him, would he himeslf build a 700 HP engine to go racing with your parts or would he step up to the plate with better parts?
66dartman
Well-Known Member
Amen, brother!
grumpuscreature
Resident Curmudgeon
345man, in case you got lost in all this, so far we have speedomotive.com, 4secondsflat.com, and Callies as sources for this crank. Wasn't that the whole point of the thread, or did I miss something?
what about nitrous and cast cranks, how do they hold up ? how high do you turn your cast crank strokers to and be safe with no trouble. hey 520 horsepower in a full weight street car and run 11.00's it would make me happy then about a 150 shot of juuice on top of that, now to me thats a fun and fast street car. my combo now is a a 10 to 1 340 full weight 74 duster street car running 11.60's on motor, havent got the nitrous bugs worked out yet. trying to search out all my options and what would be the best for my future motor build: theres just not a lot of info on 3.79's, there just hard to find
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