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need HELP with my block

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orangecrush4g63

15+ Year Contributor
38
0
Feb 27, 2005
pittsburgh, Pennsylvania
ok, i am boring my block out and am on a budget
i currently had 1g rods machined down to fit 2g pistons. the block is going to be bored .020
my goal with hp is 450
will my machined 1g rods fit an aftermarket piston like wiseco or ross? i have 1g rods that arent machined...would they be a better fit?
OR
should I just go eagle and wiseco or eagle and ross EVEN though i do not intend on ever going over 450 hp...seems to me like a waste????

Is it worth putting aftermaret pistons with 1g rods?? or just go oversized 2g??

let me know

im tryin to get the cheapest way thats going to effectively reach my goal
 
Well start off with a 6 bolt for sure dont waist your money or time with a 7 bolt.
I found that prepareing 1g rods to race spects costs only a little less than going with a forged steel rod that need very little machine work. I went with scat rods. The only thing that needs to be done to the aftermarket rods is to have the piston pin fit to the rods. My machinest found the eagle rods to be poorly machined from rod to rod so we went with scat and were perfect out of the box and only needed the piston pin bores on the rods sized to were he wanted them. If you are wanting to make over 400 HP now you will soon be over that in the future and grow out of the 1g rods so I would go all forged without question. (Why limit yourself)
The scat rods also have alighnment dowels on the big end to keep the bearings straight under heavy loads and during assembly. I assembled my motor and found the rods to be very high quality for the price. The eagles are over rated in my oppinion. There are so many aftermarket rods out there now and eagles would be the last of my choise. Others will disagree about the eagle rods but I am just posting what I have found.
 
thanks alot for ur opinion...
i was asking about going 2g pistons again because my rods are already machined
eagle rods are cheap
thats why i was going to go with them
 
i have 2g pistons and 1 g rods, i was looking at making at least 400awhp on them. i havent been able to have it tuned yet, but it looks like i will have it done another week or two. ill let you know how they hold up. i have heard some people talking about how the 1g rods can hold up to 550. now i wasnt sure if that was at the wheels or not. but im not to sure how much the 2g pistons will hold up to, i havent been able to find that out. but if your looking at making around 400 you should be fine with your current set up.
 
you should get a nice port and polish job too just to free up better flowing action.
port and polish is not to expensive. if your doing cams you shoudl also look into buying upgraded springs as well. :cool:
 
Prices on port jobs depend on the guy porting it. I did mine in school, with one of my instructors helping me. Its not easy and its quite a bit of work. It took me around 30-40 hours. So I doubt it would be cheap. I'll ask my instructor today how much he charges if I remember, but he does more pushrod mopar heads than 4 valve dohc stuff. I wouldn't trust just anybody to do it. Good luck
 
i decided im not going to port the head. just dont have the money.
im down to 2 coices i need to make SOON
eagle/wiseco for under 700 bux which is cheap but im also broke
or overbored 1 g pistons for under 100
i have a big turbo but i mean honestly...ill neevr get over 450 hp and if i ever get to the point then shouldnt i built anothe rblock whenever the time comes?
let me know what you think
 
Im in the middle of my rebuild and I am going with 2G pistons. I dotn want to have the biggest baddest car in the world so why build it that way. If you goals arent going to exceed 450 WHP then just get some 2G piston. Most people go forged and never make more power then the OEM parts could handle. I think most of it is just to say they have a "built" motor.
 
thats what im saying...im not building a race car. im going for show and go. i want to run low 12s at the track maybe high 11s and that wont take 500 hp to do. im not rich so im tryin to spend my m,oney rationally. i can put the money id put into those elsewhere
i need some more input then im oging to make my decision
thanks
 
if i do go forged wisecos with eagle rods..am i going to be able to run more boost and get away with it?
 
Lots of boost is not going to cause the damage, it's the detonation that goes with it if you don't have enough fuel to support it. Is this a 1g or a 2g? I don't understand why people that are building engines on a budget don't just stay with 1g pistons and save themselves on the machining of the rods.
 
its a 2g...im on a budget and i have 1g rods and i have 1g rods machined for 2g pistons on hand right now so i could just get oevrsized 2g pistons for 150
thats the way im leaning b/c i doubt il ever have the power to need aftermarket rods
i will have enough fuel but i mean forgerd can handle more heat
i have a turbo that is capable of running 40psi
i know with afetrmarket rods and pistons i can run more boost
just wondering if going aftermarket is gona make that big of a difference with how much boost i can run
 
If your engine is tuned right the 1g rods should be fine. Check at the machine shop to see how much it would be to have the rods shot peened and polished. This will add alot of strength. Also make sure to put some arp rod bolts in them as they are very cheap insurance that your rods wont leave the crank. ;)
 
im guessing they have arp bolts because i got the engine after it was rebuilt with 2g pistons. the head had arp bolts so they knew what they were doing. if it doesnt then i will defintly get them
so 1g rods and 2g pistons should be fine and with 780cc injecotrs i should be ready to go right?
think this is the route im going
 
I think the 4g63 has been proven time and time again to have a very stout engine from the factory. I believe the evo's have similar rods to the 2g's and look at the power some of those guys are making. I'm building a 2.4 and am using forged parts but you gotta do what the wallet allows you to do sometimes. Good luck on the build and watch out for that pesky detonation, your rod bearings will thank you! LOL!
 
well i think im going to go with stock cast pistons for money reason...that lef tove rmoney will by me a clutch and flywheel. 2 things im gonna need and it will help me get my car back on the road. just opne thing
1g or 2g pistons??? i have the roads for either so what do i do
im gonna eb running a good bit of boost and hear lower compression the better the tuning window..so what to do??
 
i keep heairng people go 2g pistons...but y? higher compression equals more power at less boost. but if im running a big turbo with alot of boost dont i want the lower compression?
 
orangecrush4g63 said:
i keep heairng people go 2g pistons...but y? higher compression equals more power at less boost. but if im running a big turbo with alot of boost dont i want the lower compression?

How many people drive around in the boost all the time?? Not many. Those who have a 1G with stock pistons know how weak our engine is out of boost. It is a pig to drive around becasue it makes no power. If you can bump up the compression then your out of boost driving will be a bit nicer. How much extra compression do you want is the question. Yes, a car will make more power with more boost and less compression but there is a nice sweet spot that you want to be in. For our cars it seems to fall between 8:1 and 9:1 for pump gas. The 2G pistons are smack dab in the middle of that. Most forged are 9:1 unless you specify otherwise. The new EVO piston are about 8.7:1 so again in that sweet spot.

All of this has to do with your tune. Everyone keeps saying to just toss away money and go forged becasue they will handle more. But if you tune is shitty you will cash out your fogred motor just as quick as the OEM stuff. I have seen alot of cars go plenty fast on a 1G rod and 2G piston. Its your money so spend it how you want.
 
ya im almost sur eim gonna go stock pisotns now but i will be running at least 21lbs on the street at all times so i figure the low compression is going to give a better tuning window
 
just want evryone to also know that im not a cocky bastard who thinks 450whp is going to be easy...this is my goal for the car over a long period of time. If i put down high 300s this year i will be more than happy

please gimmie a little more feedback...i know you guys have answers
 
ok guys...i have 1g ords and they can hold almost just as much as eagles...if i keep those i save myself 350 bux
i can get wisecos that will hold up to more heat..give me a higher compression(8.3:1) for 370 bux!
i personally think this will be a great combonation that will save me some money and give me a strong runner...pleas elt me know if its a good or bad idea..thanks!
 
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