346 vs 370
10-12-2009, 07:05 PM
#11
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go 6.0 it has a 4" bore and can use heads with bigger valves, like l92 heads and those heads flow really well, it would have more potential. the 5.3's cylinder walls get kinda thin when boring out that much, and the block has to have been casted really well or it cant be bored out all the way because there would be a thin side to the cylinder. there is alot more money involved with stretching out a 5.3.
10-12-2009, 07:19 PM
#12
go 6.0 it has a 4" bore and can use heads with bigger valves, like l92 heads and those heads flow really well, it would have more potential. the 5.3's cylinder walls get kinda thin when boring out that much, and the block has to have been casted really well or it cant be bored out all the way because there would be a thin side to the cylinder. there is alot more money involved with stretching out a 5.3.
10-12-2009, 07:23 PM
#14
When your trying or wanting to make big hp, mileage should not even be a concern.. Hp burns fuel.. The 370 is a bigger engine and will burn more fuel...Unless you have a fuel mileage tune done for it. In that case it would be pointless to have even built a engine for power..
10-12-2009, 07:26 PM
#15
10-12-2009, 08:00 PM
#19
Check-
http://speed-eng.com/store/lq9-engine-block-p-8772.html
http://www.texas-speed.com/shop/item...d=683&catid=83
Any other link you know of that will be cheap or whatever it is. Just want to see that engine/ heads etc already built up just ready to go put in truck and play.
Last edited by Go5.3tt06; 10-12-2009 at 08:08 PM.