Does the LS1 Have a forged crank?

Does the LS1 come with an main bearing girdle?

can you run solid lifters and solid shaft rocker valvetrain on the stock heads?

can you spin the engine to 8500 RMP?


Are the sleves in the block replaceable or bore-able or is the LS1 a throw away block?

Do they make forged high compression pistons for the LS1 that are reasonable in cost?

 

Does the LS1 Have a forged crank? - stock, no

can you spin the engine to 8500 RMP? probably...i remember some company destroking an LS1 to a 302 and spinning it to something like 8000. but i have to ask...WHY?


Are the sleves in the block replaceable or bore-able or is the LS1 a throw away block? i beleive you can resleeve them, you can also bore them a little. i think .030 or .040" is about max

Do they make forged high compression pistons for the LS1 that are reasonable in cost? what is "reasonable"?? remember speed takes money...how fast do you want to go?

 

Are the Pistons more than $600 a set?

I like RPM because of the power and the sound. I drive the freeway alot and I can use a High RPM Engine going back and forth to school. I would shift at 8000 RPM but I need a cushon to redline. so 8500

 

Will the stock crank take 8500 RPM?

What about the valvetrain?

 

If you want something to spin up to 8500 RPM, get a Honda S200.

 

i wouldn't trust the crank that high.....and definatly not the rods or rod bolts.

and yeah....spinning that high just to enjoy the sound on a commute...

you're looking at an engine build up that would probably run you $10-15000 or more.

do a basic bottom end rebuild, nice cam and spin it to 7000.

besides and engine that spins to 8500...or even jsut 8000 will be a total dog on the street at lower rpms. you'd have to drive around town at 3000rpm just to keep it running.

 

as stated before...no

yes and no....no specific girdle...but they do have 6 bolt mains and the oil pan increases structural rigidity

yes

stock...no....with the right parts... yes

you can bore the stock sleeves and resleeve if neccassary

depends on your definition of reasonable...$6-800avg

 

Does the LS1 Have a forged crank?
No.


Does the LS1 come with an main bearing girdle?
No. It comes with a 6-bolt mains aluminum block.

can you run solid lifters and solid shaft rocker valvetrain on the stock heads?
Yes.

can you spin the engine to 8500 RMP?
Not without completely rebuilding the internals and providing a sufficient heads/cam/intake setup that allows you to - such as some huge C5R heads, 265cc ETP, or canted valve heads, etc along with a 28x/29x .900-1.00 lift solid roller, and a specially-made sheetmetal intake manifold.

Are the sleves in the block replaceable or bore-able or is the LS1 a throw away block?
The block can be safely honed around .005 to .010 to allow aftermarket pistons to be installed. You wind-up with 347ci using the stock crank, but the LS1 block can go up to a 383. You can also wet-sleeve the block and go 454ci and beyond.

Do they make forged high compression pistons for the LS1 that are reasonable in cost?
SRP or JE should be fine.

 

Unless you are going to enter serious road-racing, there is no reason to wind the LSx engines anywhere near 8500rpm.
There are many great choices for forged pistons including Diamond, Mahle, JE, Speed-Pro and others. Check the sponsors...->
The LS1 block will take a .030 overbore NP and makes a nice stroker 382/383 (I own one)but to get lots of cubic inches, you will need to go to a different block. Some common big-inch LSxs include: 402, 408, 418, 427, 436 and with the new tall-deck blocks 480+ c.i. is attainable.

 

Are you asking these questions to figure out if you should buy an LS1-powered car? If so, have you driven one?

Agreed, high-RPM cars can sound pretty awesome, but you do NOT need to spin an LS1 to 8500 RPM to make power.

 

Dude, 8,500rpm in a Recip Engine... why?! I'd go with a power adder WAY before I'd try to go that route.

You mention 3 things in this post that make me think you either inexperienced around engines, or just plain nuts.

They are:

8,500 RPM
Stock Heads (w/ a Solid Roller Setup - C'mon)
Reasonable Costs




If you want something that sounds cool at high RPM, go get a RX7 with a Rotary. But don't get pissed when you keep getting passed by Blown (or even cammed) LS1's shifting at 6000rpm.

 

Yeah, the LSx isn't a high-strung I-4 that needs a bunch of RPM. If you are going to build an engine on the basis of sound, this might not be the right vehicle for you.

 

On the contrary... drop a few bucks on a Corsa or Borla catback (or Magnaflow if you're on a budget), and an LS1 sounds awesome. A few more on a set of headers and you'll really get some attention (not to mention some power!).

 

I meant that enabling your car to rev to 8500 rpm in the interest of sounding good shouldn't be your main goal. Personally, I think my car sounds pretty good, but it took some trial and error...

 

You'd be suprised how good a V8 sounds at 6K, and how docile you can build one that will spin to 6500ish for streetability.

If your building a 5.7L(+ if stroked) V8 that spins to 8500, its NOT going to be streetable. Will have no low end TQ. And will SUCK to drive on the street. It will loose its fun after a while.