Went from a 326ci to a 382ci motor is that right? Different heads, compression, rotating assembly, cam, possibly intake and don't know about the exhaust. Decent numbers I guess but not really breath-taking for a complete engine rebuild. Stock 5.3L puts down 295hp + 80hp so your looking at 375hp. Decent numbers.

 

I saw this series of components advertised in GMHTP recently. Curious, what makes these 'commercial' or any better for a low hp or stock rebuild? Are the LSc cranks of a lower grade material? Cost? The reason I am asking is I would like to rebuild a LS1 block I have with a 4" crank for my Tahoe. It's purpose is my DD and pulls the truck to the track so I am looking for an economical and reliable low-mid torque build not a high hp racer.

 

Adam, can u just show the actual before & after results w/ real #'s at given RPM rather than just say 80 this & 74 that? Info seems very vague, no pricing info.

ForcedTQ, what's the difference betw. 243 & 799 heads? What motor size do they come stock? 4.8/5.3 or 6L?

SO a 382 or 383 stroker is what we're lookin at basically? Like A Low Dime said, did the gains came thru the cubes, the ~1/2 pt. compression bump, or is it from the lighter rotating assembly?

 

Tom, I was looking into the 243/799 heads today, and it seems that the 243's were originally LS6 heads (with sodium valves, etc.), and the 799's are what the GMT900 4.8/5.3's come with.

 

and the L33 and some Ls2 iirc

 

That's right, I saw them listed too...I actually searched this section for "799". I'm still trying to find a list of all of the GENIII-IV casting numbers, with specs, pros/cons etc...

 

Like the others above have said, they're the same casting (essentially, intake ports, exhaust ports, combustion chamber shape and size), just used on different engines from the factory. In some (02-06 Zo6 Corvette) instances, the exhaust valves in these heads were the Sodium Filled variety.

 

enough of the banter, please keep your questions directed to our sponsor and the subject of this thread

 

So did the 5.3 that was dyno'd have the same cam in it then transferred to the stroker or was it added to the stroker build along with 243s that flow better than the stock 762s and a half a point of compression.

 

I will try and clarify quickly, It is has been Dubbed LSc, because we are targeting those who desire a little more torque, and a little more power. (basically guys with boats and campers, not racers) The Crankshaft is 5140 as apposed to 4340, and we recommend keeping this kit below 650 hp. If you are looking for more gains....you obviously know we have other products that will make that happen!. I posted figures, because I wanted you all to see the effectiveness of the kits, if you would like to see the dyno results, private message me and I can email or fax it to you.