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hey guys, what happens if I do a 5.3 to 6.0 and install the 862's to the 6.0? the thing is I had them ported, polished and the 3 angle valve job on them and kind of would like to stay with them if they will do me any good.. or should I use the ones the 6.0 have?? cause i dont think I can afford the heads job again right now..
thanks guys!
Will work fine. Will bump up compression
so it would be better than 6.0's heads?
You will gain a lot of low end torque and lose a lot of top end horse power.
Alot of people down here swap 5.3 heads to bump up the compression with good results.
will work fine
had a friend with and lq9 6.0 and had an ms3 cam and 862 heads ported, milled, and valve job and went 12.3 with traction issues. so i think it will work good.
WOW! That will work!! It would work better in a Lq9 vs Lq4 right?? I'm talking N/A..Quote:
Originally Posted by rdsmoke
Quote:
Originally Posted by White Devil
heres a comparison dyno the red ( 402 rwhp) is when i had ported 706 5.3 heads..
http://i177.photobucket.com/albums/w...ilvy/dyno2.jpg
the blue line is from a head and cam swap ;)
It will always "work better" when you run them on an LQ9.
BUT...since the cc is a lot smaller on the 706/862 heads (about 10 cc), you deck them a little...and they are going up against an LQ9's flat top pistons--there might be a concern of PTV. But since this combo has been fashioned before and there have been no major problems, I am sure you'd be fine.
38rwhp for the cam and L92 heads?? That'll work!!Quote:
Originally Posted by skeet
Quote:
Originally Posted by White Devil
you're missing the real story on that Dyno graph.
I would love to see the "avg. hp" difference in those two graphs.
I bets its a LOT more than a 38hp gain.
Avg. HP matters a lot more than Peak HP
they will be fine especially if you had them add larger valves when you had them done the first time.
So, L92 heads will work even better on a Lq9?? You also need to replace the intake right?
Correct and correct.