If i were making 500 hp with a stock cu, crank, and piston car, wat gains would i see from buying a 383 stroker kit?

 

Spinning higher, more torque, reliability.

 

More torque.

 

Any roughidea ofhow much tq?

 

I'm not sure.. I would guess a solid 20rwtq increase. Someone with first hand knowledge would need to chime in.

 

More torque which usually equates to more power. There isn't a formula for it. It all depends on the whole package.

From my experience: On a bone stock CT525 LS3 with a 3.620 stroke going to a 4.000 stroke and changing nothing else it gained almost 100ftlbs

 

I would not expect 100...20 might be on the low solid. I would say 30-35 would be close.

 

Lol i dont think 30-40 is enough for me to **** away 2000 for

 

It has alot to do with the combo also. Just stating 30-40 lbs. of torque is pretty generic. It also shifts the torque band accross the board. It is well worth it if you have the money.

 

Redz is correct, that was a very extremely over simplified explanation.

However, I don't see too many 383s that impress me. Imo if your going to do it, go 408.

 

With a full heads cam.car i.would only see 30-40? Can i do a 408 in an ls1? What gains from that

 

6.0 Lq9 based 408..

The gains for that are nice in both HP and tq as well as opening up nice options for heads etc.. I would use the same combo on a 408 that you have on an ls1 however.

You need to read some stickies. You are asking some very vague questions that have a very broad answer.

 

You can get 408 from an LS1 and at that point I know that you're pushing the CI limit for that motor (as in the cylinder walls can't be expanded any further without sleeving). That's all I know-and this is from me only observing. Like someone else said, someone with first hand experience needs to chime in. A friend of mine, KILLER-LS1 is running a forged 408 with I think an LQ4...

 

Lol ok will research

 

I would only recomend taking a stock ls1 block .010 over max. Which is basically a hone/cleanup. If you are doing a rebuild I would also stay away from the 98 blocks. It has been said to have poor oil circulation towards the back of the block.

The benefit of a 383 (using an ls1 block) as compared to using an LQ9 block is the 100 lb. weight savings. Then again the larger bore of the 408 helps in that area. LME made a pretty beastly 383 turbo car in a C6, but I think that was a large bore build. Don't quote me on it.

 

I have a 6.7L 408 Iron block storker. Its made from a 6.0L Lq4 truck motor. It is then taken .030 over and stroked to make the extra CI.

Its a beast and all but it seems the 6.0L in stock form would still be plenty. I have read about people that have changed the rod bolts and made gobs of power spinning them to 7k. That would be much cheaper to do.

 

O eff that poor oiling nonsense lol jk......nah id ike to keep her original block

 

Im missing the point of keeping the original block...

This isn't a 1st gen Z28, where removing a matching numbers block would destroy the cars value.

money? LQ9 blocks are only a couple hundred bucks...

Cuique suum

 

Idk i just waNna keep the original block.....doing a 500 hp build with a 98 isnt goona b bad......sure the newer blocks have better oiling, but the 98 blocks oiling is good enough

 

check TSP for a stroker kit.find a good engine builder in your area .you should get some good heads to help feed the extra cubes.