Starting to freshen up my old build, aiming for 460whp. Ideas?
05-09-2014, 12:37 PM
#22
Yeah, but...it doesn't matter. If an engine is breathing enough air to make 460whp, it doesn't matter if it's 346ci or 454ci, both the LS6 and LS2 manifold have been proven to be capable of keeping up. Let's not forget where this argument stems from...
05-09-2014, 05:34 PM
#26
I would sell it all as a longblock and buy a 370ci engine and ported OEM castings.
There's a good chance the heads need new valves, guides, and a valve job. The pistons could have gotten banged up if not destroyed, so you're probably in need of a shortblock anyways.
420whp seems pathetic with AFR heads, but hopefully it runs better than those numbers suggest. 460whp should be easy with more cubes and a decent set of OEM heads.
There's a good chance the heads need new valves, guides, and a valve job. The pistons could have gotten banged up if not destroyed, so you're probably in need of a shortblock anyways.
420whp seems pathetic with AFR heads, but hopefully it runs better than those numbers suggest. 460whp should be easy with more cubes and a decent set of OEM heads.
Ron
05-09-2014, 09:00 PM
#28
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This is absolutely correct if all else stays the same, but with the extra cubes you can run a bigger HCI combo and still have similar drivability as a smaller combo with a LS1
05-10-2014, 08:17 AM
#30
That's kinda my point. Who is going to run a 5.7 cam, say a 224/224 or 228R in a 6.0? If you ask me, that test was, well, pointless to put it bluntly.
You pick the cam to optimize the heads, the heads to optimize the displacement, and you wind up with a combo that ultimately dictates the power.
You pick the cam to optimize the heads, the heads to optimize the displacement, and you wind up with a combo that ultimately dictates the power.
05-21-2014, 09:48 AM
#31
Posted by Bluedevil415 : Bump from the dead LOL. A while ago i had to swap the stock ls6 short block because i had excessive blow by. I swapped to a stock ls2 short block and kept everything else the same. My previous numbers on the ls6 were 484/412. My new numbers with the ls2 were 493/435. Best E.T has been a 10.98 at 128 M.P.H
05-21-2014, 06:19 PM
#33
https://ls1tech.com/forums/18217051-post305.html
Posted by Bluedevil415 : Bump from the dead LOL. A while ago i had to swap the stock ls6 short block because i had excessive blow by. I swapped to a stock ls2 short block and kept everything else the same. My previous numbers on the ls6 were 484/412. My new numbers with the ls2 were 493/435. Best E.T has been a 10.98 at 128 M.P.H
Posted by Bluedevil415 : Bump from the dead LOL. A while ago i had to swap the stock ls6 short block because i had excessive blow by. I swapped to a stock ls2 short block and kept everything else the same. My previous numbers on the ls6 were 484/412. My new numbers with the ls2 were 493/435. Best E.T has been a 10.98 at 128 M.P.H
