Re: stroker 360 with factory rods? why not?
[Re: TheOtherDodge]
#348287
06/15/09 09:04 PM
06/15/09 09:04 PM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
I agree with the others a H-beam rod is cheap now days. I had a set of the best production small block rods in my 340(viper rods) and I did alot of work to them and after about 2 years of racing I had one break in half... just not worth it when you figure the cost of the heads and crank or anything else that may get damaged if one breaks. By the way, how old are the ones you have 15 years old(guess) not worth it........ JMO
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: dirt]
#348289
06/15/09 09:34 PM
06/15/09 09:34 PM
|
Joined: Oct 2004
Posts: 8,165 Left Coast
BobR
master
|
master
Joined: Oct 2004
Posts: 8,165
Left Coast
|
Quote:
The actual motor was a 78. i had it built in 2000. put 14000 miles on it and the spark plug came apart and messed up the piston a couple months ago. after looking at the price of everything i almost think i should just build the 440 i have for it, not much difference in price. i just dont wan to cut the inner fenders to get a good set of headers on it
You can always get headers made but it will cost a lot more. Rods are the one area you don't want to cheap out on.
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: BobR]
#348290
06/16/09 07:35 AM
06/16/09 07:35 AM
|
Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
|
if the rods were resized with ARP bolts, and you keep the revs under ~6k, I'd reuse stock rods in a heartbeat. I guess I'd trust them more than some of the cheaper offshored crap (i.e. eagle SIR's, etc)
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: dirt]
#348291
06/16/09 08:10 AM
06/16/09 08:10 AM
|
Joined: Dec 2006
Posts: 1,178 Indy
FlyFish
super stock
|
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
I would go with Scat I-beams, they are lighter than H-beams, cheap, strong (rated to 650 hp), should clear the block without grinding, and should not need any heavy metal in the crank to balance the assembly (or at least my set up didn't). FWIW, A lot of the guys I talked to with H-beams and strokers had to put a few slugs of heavy metal in the crank to balance the assembly...that just extra money thrown away if its just a street car.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: FlyFish]
#348292
06/16/09 08:18 AM
06/16/09 08:18 AM
|
Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
I Live Here
|
I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
|
Like Patrick. I use them for under 6K redline engines, and I dont trust the cheaper imports. I dont do the beams. They get shot peened, bushed, ARP bolts, and re-sized and they cost about $320/set ready to assemble. The next step up for me is the Eagle Hbeams, which may need fixing, then the better I beam rods. As most of these engines make peak power under 6K, they are fine.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: FlyFish]
#348293
06/16/09 11:31 AM
06/16/09 11:31 AM
|
Joined: Apr 2003
Posts: 799 north west LA
W2DODGE
super stock
|
super stock
Joined: Apr 2003
Posts: 799
north west LA
|
Quote:
I would go with Scat I-beams, they are lighter than H-beams, cheap, strong (rated to 650 hp), should clear the block without grinding, and should not need any heavy metal in the crank to balance the assembly (or at least my set up didn't). FWIW, A lot of the guys I talked to with H-beams and strokers had to put a few slugs of heavy metal in the crank to balance the assembly...that just extra money thrown away if its just a street car.
I would also recomend the scat I-beam rods if you are trying to keep costs down
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: emarine01]
#348294
06/16/09 11:51 AM
06/16/09 11:51 AM
|
Joined: Jan 2005
Posts: 3,635 Oakland, MI
dizuster
master
|
master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
|
Quote:
Even though stroker rmps are lower the piston speed is way up there and puts more strain on the rods,
Piston speed is driven by RPM.
3.58" stroke at 6700RPM = 4000 Feet per min.
4" stroke at 6,000 RPM = 4000 Feet Per min.
Rod doesn't know any difference except it gets less cycles at the same speed. Also, the piston is lighter in a stroker motor (pin's up higher), so it will actually end up with less strain on the rod.
Nobody would question 6,700 in a 360, so why does everyone worry about 6,000 in a 408"
The head will choke and be done making power at the same piston speed regardless of RPM.
340 and 360 rods are different. As I remember 340 are full floating, and 360 are press fit...
(someone feel free to correct me if I have those backwards)
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: patrick]
#348297
06/16/09 01:17 PM
06/16/09 01:17 PM
|
Joined: Jan 2003
Posts: 11,718 Portage,michigan
B3422W5
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 11,718
Portage,michigan
|
Quote:
if the rods were resized with ARP bolts, and you keep the revs under ~6k, I'd reuse stock rods in a heartbeat. I guess I'd trust them more than some of the cheaper offshored crap (i.e. eagle SIR's, etc)
the Eagle SIR rods are about the only rod i WOULDNT use in a stroker build thats going to make any steam at all, other than the stock rods.Those and the stock rods i would stay away from for sure.
As others have said, put a good rod in it
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
|
|
|
Re: stroker 360 with factory rods? why not?
[Re: dirt]
#348299
06/16/09 03:24 PM
06/16/09 03:24 PM
|
Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
If you run stock rods you will need to externally balance it or buy expensive mallory to internally balance it. I would buy the SCAT I beam rods also because they are so much lighter it will make your engine rev way easier and be easier on the crank. The lighter weight also helps get you engine to the power produceing part of the rpm range quicker. For around $300 they are well worth the money. I have a set in my 318 along with some light weight pistons and WOW does it rev up quick! I even have a stock cam and heads on it.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
|
|