This is to answer questions about stroking and boring
well the ls2 crank is 13mm longer...what would you do there? i know you could prob machine it, but thats a big obstacle in the fwd set up.
I have researched this throughly. You can not do that. The reason is the entire crank is different. If you really wanted a new crank than you would have to get it custom built.
The crank can't be that much different if all the journals are the same.Yes the crank is 13mm longer but thats nothing but turning it down. As for the counter weights(I'm assuming this is what you are talking about being so different) they might be bigger on the ls2 crank but that to could be cut down. I'd be willing to bet modifying an ls2 crank would be much less than having a custom one made. Anything can be done if you put your mind or money to it.
Teching In
Joined: Sep 2009
Posts: 40
Likes: 0
2 things. Show me one person who has positive dyno results from a cam on OUR ls4 engine.
I honestly think that for someone to gain good power from a cam (especially an aggressive one)- they need to get the headers and a different intake manifold on there to eliminate the main restrictions; but I don't see any reason why the LS4 would be any different than practically ever other engine out there.
The crank can't be that much different if all the journals are the same.Yes the crank is 13mm longer but thats nothing but turning it down. As for the counter weights(I'm assuming this is what you are talking about being so different) they might be bigger on the ls2 crank but that to could be cut down. I'd be willing to bet modifying an ls2 crank would be much less than having a custom one made. Anything can be done if you put your mind or money to it.
On the other note, there is no way you can bore out our sleeves that much. We can NOT bore the stock sleeves out another 21 cu in.
TECH Regular
Joined: Nov 2009
Posts: 446
Likes: 0
From: Farmington Hills, MI
Like others have said, there is almost no difference between an iron block and an aluminum block because the aluminum blocks have iron sleeves. It's not like aluminum heads vs. iron heads. The aluminum block is all about weight reduction.
LPE was able to bore and stroke a 346 out to 427 before the LS7 hit the scene, but it wasn't cheap. They put it in the Vettes they resell for the customers that wanted to go N/A. Since they were selling 600-2000HP TT 346's at the same time, I don't know why anyone would have bought one save for nostalgic reasons. There's nothing quite like buying a new Corvette and then chipping off another 40 grand plus.
Yep I found that out last night after looking around some more. Man I feel like a dumb *** but I did fine a place here in Ohio that makes crankshaft for 5sec. Drag cars and there 4340 forged 350 cranks were only like $300 or $400 so I'm gonna give them a call Monday and see what they are about
Yep I found that out last night after looking around some more. Man I feel like a dumb *** but I did fine a place here in Ohio that makes crankshaft for 5sec. Drag cars and there 4340 forged 350 cranks were only like $300 or $400 so I'm gonna give them a call Monday and see what they are about
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You easliy can make a 4t65e-hd handle 500 - 700 whp. Some 9 second cars were running 4t65e-hd's in the car. With enough cash you can make them "almost" indestructible. Intense and ZZP were both running 4t65e-hd's in thier 9 and 10 second cars.
-Mike
-Mike
its actually hard to find that 1" GM chain that contributes to 90% of our tranny's strength when built.
Ok....at what point is a forged crank actually going to become *necessary*?
Last I checked this wasn't just about getting a forged crank it was about boring and stroking. So on that note most if not all shops that make custom cranks are are making them forged weather they are 4340 or 5140.
Yep I found that out last night after looking around some more. Man I feel like a dumb *** but I did fine a place here in Ohio that makes crankshaft for 5sec. Drag cars and there 4340 forged 350 cranks were only like $300 or $400 so I'm gonna give them a call Monday and see what they are about
I'm trying to figure out why you're wanting to get a custom crank made.
