lsxballs

is a 347 forged a good investment if want to be spraying the car basically every weekend a 150 shot


and any estimates of 1/4 time with 347 ms3 or megadeath cam heads and 150 nitrous

99blancoSS

iTrader: (115)

Welllllll.
You can look at it a few ways...

You won't make anymore power than you do now, in fact maybe a little less, unless your putting a new top end on as well. After spending the money you might be a little disappointed at the same power levels. Unless your doing heads but if you already have h/c combo your not making more power.

SO if you can distinguish and live with the money spent for a 347 and the same power levels but knowing your safe to spray then your good to go.

But if every-time you step on the gas your expecting to be faster, you won't be and will be disappointed.

I'm the latter of the two and having been there and done that I would go bigger.
If you have a good block(haven't spun a main) then you can do a 383 for cheap money.

Or you can go to a 370 to save a little coin or a 408 would be the next least expensive way to go.

lsxballs

do u need a 6.0 block for a 408 or can it be done with a ls1 block

99blancoSS

iTrader: (115)

6.0 block

deuce_454

putting money into modifying a car is never a good investment.... but if you were about to spray the hell out of it i t would be money wisely spent.... 150 shot of nitrous isnt spraying the hell out of it though... i wouldnt spend the cash on a forged rotating assmebly...

either stay stock and spray 150... or go nuts, get a forged 6.0 and spray 2 or 3 stages...

allngn_c5

iTrader: (3)

Well he did say 150 shots every weekend. Maybe his spray the hell out of it opinion is based on the number of 150 shots sprayed VS the size of the actual shot sprayed. I am with you though, if he's going forged for nitrous, you might as well get as much out of every bottle that you can, MULTI STAGE dumdumdum.

john563

iTrader: (17)

yeah 408 and multi stage gets my vote

white00ta

iTrader: (-1)

Just my opinion I had the same plans as you. I built the block "forged 347" to keep it safe and spray. Now i wish i would have went with a 6.0 block. I feel like i wasted time and money to go 347 when a 6.0 block was little more dollars away.

Option 1: Spray 150 on a stock block all day long till she blows...
Option 2: Build a 347 and regret it when your done...
Option 3: get a 6.0 block and build. never look back..

First Collision

iTrader: (13)

same here.. I built a 347, even reusing my stock block, a 408 wouldn't have been much more and I really wish I would have gone that route.

greatskiiiier

iTrader: (10)

if your ganna do a forged 347 get a blower or turbo on that bitch, otherwise go bigger

Johnnystock

iTrader: (6)

Listen to these guys, I did the forged 347 and I really wish I would have gone for the 408.

01SuperSport

iTrader: (7)

Well I don't know the cost of building any one of the two but if the 408 isn't much more than do that. The 347 would still be good though if you don't want to go bigger. Plus the heads and big cam with a 150 shot on top of that will give you plenty of power to turn in 10's at the track for sure.

lsxballs

yeah i think im going with the 408 dual stage

Kingc8r

iTrader: (21)

Yea but then you will have to buy heads, intake, trans and a rear end plus misc stuff.

My buddy is going through this right. I don't think he expected all the little stuff that goes along with a 408.

At first it was just a shortblock, now he added heads. Has to get a new intake, trans, rear end, fuel system, blah blah blah.

Just make sure you plan everything out

Kingc8r

iTrader: (21)

When I say ' have to' it isn't a must but it would be dumb to build a 408 and choke it with stock parts...

I would only do that if it was for a short time

First Collision

iTrader: (13)

^^ I had to buy all of that anyway...

I blew the 10 bolt exactly 1 month after I built the 347. I bought a FAST 92, heads, and a cam.. then my inj. were maxed, and I upgraded the fuel pump.

These are all costs of building any motor. I would have spent about another grand to buy a 408 shortblock vs. what I spent rebuilding my shortblock to a 347.

Emoney97ss

iTrader: (42)

wouldn't a forged 347 be light then a stock rotating assembly? which in turn would allow the motor to rev faster?

XpEdItIoUs

iTrader: (44)

I thought doing a forged 347 was cheaper since you are reusing the block and crank, 408 will require buying a 6.0 iron block, and a new crank. Dosn't the crank add another 1k to the build?

Emoney97ss

iTrader: (42)

yeah, its cheaper to build a forged 347 it doesn't matter what anyone says...

SOMbitch

iTrader: (8)

Forged = heavier than hyperteutic so all else being equal costs you a few ponys......