how to make your LS1 forged....
Thread Starter
Joined: Mar 2010
Posts: 732
Likes: 13
From: Murfreesboro, TN
how to make your LS1 forged.... i have been running cam + bolt-ons for about two years.....i really want to do heads and a FAST int, but i keep reading that 98's have weak rod bolts, so i don't want to ruin a nice set of AFR's or TFS's.....my rev limiter is set at 6300 now, but one day i'd love to try a single turbo shooting for 550-600rwhp.....so with all of this in mind, my question is what all goes into making a rock solid bottom end.....aftermarket rotating assembly and bearings???.....i installed the cam by myself, so i know the basics, but how much of the bottom end build can i do myself and what will i have to get done by a machine shop?....also, what are the better brands for a crank, rods, pistons, etc?.....is there a kit that produces good results?.....how much HP will the stock crank hold if i just do pistons/rods?.....what is the difference between a 346 and a 347 LS1?....would it be best to go 383?.....sorry for all of the questions, just thought this could be a good thread for those of use who are thinking of going forged.
383 means you need a 4" stroker crank.
eagle, callies, plenty of rotating assemblies to buy.
If you dont have the proper tools to measure and balance the crank etc. then just let a machine shop do it.
eagle, callies, plenty of rotating assemblies to buy.
If you dont have the proper tools to measure and balance the crank etc. then just let a machine shop do it.
Honestly if you are going to put that kind of money into an engine, I would possibly look into building a 5.3 or 6.0. Find one cheap and build the motor on the stand and keep your car on the road until it's done! Just a thought for ya....
Thread Starter
Joined: Mar 2010
Posts: 732
Likes: 13
From: Murfreesboro, TN
thanks gary, this is the kind of info i was looking for.
Thread Starter
Joined: Mar 2010
Posts: 732
Likes: 13
From: Murfreesboro, TN
cool, i'll check around and see what i can dig up......i think you guys have talked me into throwing one on a stand and building it up, should be fun.
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Common 347 ls1 build for supporting 700-800 rwhp (I went with this, love it)
1) Wiseco pistons
2) Callies compstar rods with ARP 2000 bolts
3) ARP Main Studs
4) Stock crank
The stock crank is good for much higher than 550 rwhp. If you know you're going boost, just keep the stock crank. If you are going N/A, I think an ls2 or ls3 block is a better idea because it gives you a lot more potential. Make sure you set your piston to wall clearance and ring gaps accordingly if going boost.
1) Wiseco pistons
2) Callies compstar rods with ARP 2000 bolts
3) ARP Main Studs
4) Stock crank
The stock crank is good for much higher than 550 rwhp. If you know you're going boost, just keep the stock crank. If you are going N/A, I think an ls2 or ls3 block is a better idea because it gives you a lot more potential. Make sure you set your piston to wall clearance and ring gaps accordingly if going boost.
A forged crank is still worth looking into. Better quality, little bit lighter and you know its not gonna break. Plus at this point just buy the damn stroker crank and enjoy the extra ci
347 is when you hone out the block of a ls1 or 5.3 to 3.905 to take a typical aftermarket piston (diamond, wiseco, etc)
to build an engine whether its a 5.3, 6.0, or whatever needs to be planned right from what I've seen...
I'm getting an engine built as we speak and the price for the block (core) and parts+ labor can add up to close to what a shortblock cost from a sponser...
I would keep that in mind because its easy to buy all the parts, but getting it all put together and properly getting it together are diffrent ball games..
to build an engine whether its a 5.3, 6.0, or whatever needs to be planned right from what I've seen...
I'm getting an engine built as we speak and the price for the block (core) and parts+ labor can add up to close to what a shortblock cost from a sponser...
I would keep that in mind because its easy to buy all the parts, but getting it all put together and properly getting it together are diffrent ball games..
Oh and by the way I would have went and built a 6.0 stroker, the only reason I'm staying 5.7 is because my cam, converter were spec'd for a 5.7.... that and I'm reusing my forged ls6 rotating assembly..
I'm building an IRON 347
I'm building an IRON 347
lol Yeah i told my engine builder how much power I wanted to make and he raised his eyebrows at the eagle h beam rods... but said they were ok...
Id love to buy lunati, callies, etc....
but theres too many people on here making stupid power on stock cranks and eagle rods/diamond pistons...
Id love to buy lunati, callies, etc....
but theres too many people on here making stupid power on stock cranks and eagle rods/diamond pistons...
