Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Completely forged 347, 348????

Thread Tools
 
Search this Thread
 
Old 12-28-2004, 12:53 AM
  #21  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by jrp
your luck cant have been any worse then mine, my motor went . i replaced it with a forged 347; stock treated crank, custom diamond pistons, eagle H beams, Clevite bearings, brand new ls6 block, arp main heads studs, all machined and balanced for under 3k.
Well i think i have a hole in my piston. I just had my ATI blower installed and drove it maybe 500miles and the the dipstick started blowing out spraying oil all over the engine. So it's either the ringland or a hole in the piston. It's gonna be bad if i dont' do something about it. Where did you get all of your work done at or did you do it yourself. How much power will your setup handle?
Old 12-28-2004, 12:55 AM
  #22  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by LSONE
http://www.ls1speed.com/catagory.cfm?catagory=engine

you might wanna call them up, or any other sponsor for that matter, and get their advice.
Thanks i will do that. They put my heads and cam in my car for me so iwill just give them a call.
Old 12-28-2004, 12:55 AM
  #23  
TECH Fanatic
iTrader: (1)
 
LSONE's Avatar
 
Join Date: Jul 2004
Location: Palm Harbor, FL
Posts: 1,453
Likes: 0
Received 0 Likes on 0 Posts

Default

um, i think thats normal for FI engines. you'll need something to relieve the pressure in the crankcase, thats why its blowing air out the dipstick.
Old 12-28-2004, 12:58 AM
  #24  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

I have tried catch can and breathers too nothing helps. When i take the oil fill cap off smoke comes out like a choo choo train. Everyone has told me that this is a tell tail sign that something is wrong with the piston.
Old 12-28-2004, 01:00 AM
  #25  
TECH Fanatic
iTrader: (1)
 
LSONE's Avatar
 
Join Date: Jul 2004
Location: Palm Harbor, FL
Posts: 1,453
Likes: 0
Received 0 Likes on 0 Posts

Default

ya i did a quick search and found your other thread. definantly give one of our sponsors a call, they can diagnose your problem for sure, and maybe also hook you up with a good deal.
Old 12-28-2004, 01:02 AM
  #26  
jrp
SN95 Director
iTrader: (16)
 
jrp's Avatar
 
Join Date: Jul 2003
Location: Valencia, Ca
Posts: 10,755
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by Mike2002
Well i think i have a hole in my piston. I just had my ATI blower installed and drove it maybe 500miles and the the dipstick started blowing out spraying oil all over the engine. So it's either the ringland or a hole in the piston. It's gonna be bad if i dont' do something about it. Where did you get all of your work done at or did you do it yourself. How much power will your setup handle?
i spun some bearings in mine. i bought my new shortblock from a former sponsor (long ordeal, dont ask). from what i've researched HPE has one of the best prices on an off the shelf shortblock. since you've got a blower i'd build it with that in mind.

as far as my power i should be in the 450+rwhp range; 12:1 compression, heads, cam, full bolts ons, yada, yada, yada.
Old 12-28-2004, 01:09 AM
  #27  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Yeah i am putting down 530 at 8#'s of boost right now and i would like to up the boost when i go forged. I hope to put down a little over 650 at the wheels. I don't know what to do. Just keep searching. Don't want to go the wrong route and be even more in debt.
Old 12-28-2004, 05:34 AM
  #28  
LS1TECH Sponsor
iTrader: (6)
 
mikey's Avatar
 
Join Date: Nov 2001
Location: Reading, PA
Posts: 2,102
Likes: 0
Received 0 Likes on 0 Posts

Default

Another option is to go with an LS2 block and 4.000" stroke for a 402CI. We have two of those on the go right now.

Mikey
Old 12-28-2004, 04:01 PM
  #29  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by mikey
Another option is to go with an LS2 block and 4.000" stroke for a 402CI. We have two of those on the go right now.

Mikey
Has anybody really proven this setup yet? Also doesn't it take a great amount of modification to make it work? What would something like that cost?
Old 12-28-2004, 07:41 PM
  #30  
LS1TECH Sponsor
iTrader: (4)
 
Bryan@LME's Avatar
 
Join Date: Aug 2004
Location: NW Houston
Posts: 301
Likes: 0
Received 0 Likes on 0 Posts

Default

Hey Mike,

If you are interested in the nicest parts and highest quality machine work, at a resonable price give us a call at LME. In most cases we can have your engine to you in 2 weeks.

Bryan
@ LME
713-849-4505
Old 12-28-2004, 07:55 PM
  #31  
LS1TECH Sponsor
iTrader: (6)
 
mikey's Avatar
 
Join Date: Nov 2001
Location: Reading, PA
Posts: 2,102
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Mike2002
Has anybody really proven this setup yet? Also doesn't it take a great amount of modification to make it work? What would something like that cost?
Mike, the block is cast the exact same way as the LS1s so I don't see any problems with these at all given the number of 600+rwhp 346's. It's not difficult at all to make it work. Call me on the cost involved. Just an FYI, Rapid uses all premium quality parts such as Callies cranks, Manley, Crower or Oliver rods, Diamond pistons, billet main caps, etc. I refuse to build low dollar time bombs.
Old 12-28-2004, 08:27 PM
  #32  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by mikey
Mike, the block is cast the exact same way as the LS1s so I don't see any problems with these at all given the number of 600+rwhp 346's. It's not difficult at all to make it work. Call me on the cost involved. Just an FYI, Rapid uses all premium quality parts such as Callies cranks, Manley, Crower or Oliver rods, Diamond pistons, billet main caps, etc. I refuse to build low dollar time bombs.
Ok i will try to get my lazy *** out of bed tomorrow and give you guys a call.
Old 12-28-2004, 11:20 PM
  #33  
TT-TECH Veteran
iTrader: (29)
 
Inspector12's Avatar
 
Join Date: Mar 2003
Location: Pearland
Posts: 4,779
Likes: 0
Received 2 Likes on 2 Posts

Default

Mike - You are getting to carried away in my opinion. I had the same issue most FI guys do the ring glands are usually the first to go just look at the pics in my signiture. I just rebuild it used forged Mahle pistons and some H-beam rods. I am makeing 569rwhp and am planning on 6-700 range when I am done. You should just start simple and work your way up. If you insist on a forgen crank get a 4" for a 383. If not just buy some forged pistons and nice rods and rebuild or buy a sponcers forged 347/348. Harland is running 8.20' and 170mph on a stock crank. They are really nice pieces if you ever talk to any machinist they will tell you that too. Oh by the way I only had about 18 miles on mine when it happened to me so I know how you feel about the luck thing. Good luck on what ever decision you make it is your money! Oh and if I was going to have some one build me one I'd call Kurt over at Wheel to Wheel they have a very good track record with forced induction. No offence to other sponcers it is just my opinion.
Old 12-28-2004, 11:26 PM
  #34  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Inspector12
Mike - You are getting to carried away in my opinion. I had the same issue most FI guys do the ring glands are usually the first to go just look at the pics in my signiture. I just rebuild it used forged Mahle pistons and some H-beam rods. I am makeing 569rwhp and am planning on 6-700 range when I am done. You should just start simple and work your way up. If you insist on a forgen crank get a 4" for a 383. If not just buy some forged pistons and nice rods and rebuild or buy a sponcers forged 347/348. Harland is running 8.20' and 170mph on a stock crank. They are really nice pieces if you ever talk to any machinist they will tell you that too. Oh by the way I only had about 18 miles on mine when it happened to me so I know how you feel about the luck thing. Good luck on what ever decision you make it is your money! Oh and if I was going to have some one build me one I'd call Kurt over at Wheel to Wheel they have a very good track record with forced induction. No offence to other sponcers it is just my opinion.
No i completely understand. I haven't ruled out a stock crank yet i am still debating. That is why this post is here to hear your guys opinions. I respect all of them and definitly take each of them into consideration. IT all depends on the money flow. I dont want my car to sit all summer but i also don't want to half *** this and regret it later.
Old 12-29-2004, 03:53 PM
  #35  
12 Second Club
iTrader: (6)
 
Viper's Avatar
 
Join Date: Dec 2001
Location: Cleveland, OH
Posts: 4,909
Received 3 Likes on 3 Posts

Default

DON'T half *** it - ask me how I know.
Old 12-29-2004, 04:13 PM
  #36  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Viper
DON'T half *** it - ask me how I know.
what happened to you?
Old 12-29-2004, 04:17 PM
  #37  
12 Second Club
iTrader: (6)
 
Viper's Avatar
 
Join Date: Dec 2001
Location: Cleveland, OH
Posts: 4,909
Received 3 Likes on 3 Posts

Default

A sponsor who no longer exists charged big money but used inferior parts. I'm now on my 3rd motor as his forged shortblock lasted 12K. Doing it right this time.
Old 12-29-2004, 04:31 PM
  #38  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

what is your current setup? What forged internals are you using and who did the work?
Old 12-29-2004, 04:40 PM
  #39  
12 Second Club
iTrader: (6)
 
Viper's Avatar
 
Join Date: Dec 2001
Location: Cleveland, OH
Posts: 4,909
Received 3 Likes on 3 Posts

Default

LPE shortblock with Mahle pistons and:

http://www.lingenfelter.com/ls1shortblock.asp

AFR heads

Custom Cam

Won't be all put together till spring. H/C from not a sponsor. The assembly will be done by a local shop. I'll install the motor back in the car.
Old 12-29-2004, 04:44 PM
  #40  
11 Second Club
Thread Starter
iTrader: (13)
 
Mr. Bungle's Avatar
 
Join Date: Aug 2004
Posts: 1,828
Likes: 0
Received 0 Likes on 0 Posts

Default

Doesn't the LPE block have stock rods? I know it has the stock crank but i think it has stock rods as well.


Quick Reply: Completely forged 347, 348????



All times are GMT -5. The time now is 08:18 PM.