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Super73 · 04-18-2008, 09:00 PM

Same here.. I have been tuning the LS1's since 2001 (For personal and friends) as well as building LS1 stuff for personal and friends for quite some time.

There are turbo cars going bottom as fast as bottom 8's on stock blocks and cranks. The l92 heads (LS3 heads) are incredible right out of the box (But you need at least a 4.00" bore).

My little 347ci motor with 3 year old factory (ported) LS1 heads is making 430rwhp through a 4L80E (heavy auto). This is with an off the shelf cam. I will be hitting this block/stock crank with a 300hp shot of N20.

04-18-2008, 09:00 PM	#3
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: ls 376/515 Same here.. I have been tuning the LS1's since 2001 (For personal and friends) as well as building LS1 stuff for personal and friends for quite some time. There are turbo cars going bottom as fast as bottom 8's on stock blocks and cranks. The l92 heads (LS3 heads) are incredible right out of the box (But you need at least a 4.00" bore). My little 347ci motor with 3 year old factory (ported) LS1 heads is making 430rwhp through a 4L80E (heavy auto). This is with an off the shelf cam. I will be hitting this block/stock crank with a 300hp shot of N20. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 04-18-2008 at 09:01 PM.