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Thread: LS1 into a LS7???
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11-12-2006 #21
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Most efficient way to do a 427 is a LS2 sleeved block with Eagle 427 rotating and CNC ported LS6 heads. It'll make 600hp at the flywheel...Costs about $10.5K and will destroy the GM crate LS7.
Originally Posted by rohrt
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11-12-2006 #22
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Pretty bold comment considering that the increased MOI will eat up a fair share of the increased HP (under the curve) from the optional build. A simple cam change and header selection at the get go will net over 650hp from a crate LS7. Originally Posted by SLED28
As for the money, sure $2000 sounds like a huge amount in the difference between the optional build and a crate LS7.... but the crate also comes with a bunch of other stuff, a warranty and less 200grams of bob weight per cylinder.
11-12-2006 #23
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I said a GM crate motor, not GM crate motor + cam mods. What waranty will you have left if you change the cam? I know many shops offer waranties on their motors. But I was saying GM LS7 crate = 450rwhp or 500flywheel. A 427 LS2 with cam/heads = 525rwhp or 600 flywheel. Originally Posted by chicane67
11-12-2006 #24
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Yeah, warranty...... its funny that I said that. Most of them, no matter who its from, doesnt hold its water.
Well just for sh*ts and giggles.... a stock GM crate LS7 with the UMI Delphi 4B computer will net 550-560hp at the crank with zero mods what-so-ever.... and doesnt impose warrant conficts. And is still sheds 1840G or recip mass.....
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