09-29-2010, 04:30 PM | #1 |
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Port LS3 heads or invest in LS7 heads?
Just trying to figure out which would be a better way to go? (cost effectiveness)
Is is worth it to invest in CNC ported LS7 heads to swap out with the LS3's? Or am I better off just porting my LS3 heads? Either set up I go with would have new valves/springs, etc... My plan is to get a 418ci or 427ci stroker kit(maybe), blower cam and procharger. |
09-29-2010, 06:53 PM | #2 |
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LS7 heads wont fit on an ls3.
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09-29-2010, 07:28 PM | #3 |
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not doubting you but why won't they fit?
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09-29-2010, 07:31 PM | #4 |
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Bore is too small on the LS3 and valves would hit. You have 2 choices to get LS7 heads. Either go with a different block or go with ET small bore LS7 heads. Both options will be very pricey.
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09-29-2010, 07:39 PM | #5 |
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answers my question then doesnt it! Thanks
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09-30-2010, 09:11 AM | #6 |
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There's some good options coming very soon though... We have a aftermarket casting LS3 head being finished that will move LS7 flow numbers & still retain all your LS3 hardware. We also are working on a LS7 heads with large & small bore options!
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10-01-2010, 10:59 AM | #7 |
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10-01-2010, 12:03 PM | #8 |
BAMF SS
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throw the 427 stroker idea out the door... a 4.1" stroke crank is excessive
stock ls3's will flow enough, but if you feel the need to waste money, get a set of ported ls3 heads
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10-01-2010, 12:24 PM | #9 |
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I would wait to see what SEMA brings.. it's only a month away.
That's when new parts get announced... especially something like what you want. |
10-01-2010, 12:52 PM | #10 |
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What he said If you're going forced induction with cam, stock LS3 heads would be more than enough.
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10-02-2010, 09:31 PM | #11 |
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you would be better off to ditch the ls3 style all together and get some trick flow 235's or afr 230 heads.
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10-03-2010, 12:10 PM | #12 | |
BAMF SS
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Quote:
explantation please
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10-04-2010, 02:31 AM | #13 |
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Yeah unless AFR or Trick Flow come out with a LS3 style head the cathedral port head idea would be a bad costly idea.
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10-04-2010, 03:24 AM | #14 |
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get L92 ported heads
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