Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: Which would be a better bang for the buck both built out of a 6.0 iron block?
370 with ls1 ported heads
38.78%
408 with ported ls1 heads
61.22%
Voters: 49. You may not vote on this poll

info on which to build 370 or 408

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Old Feb 7, 2009 | 07:29 PM
  #61  
zo6 vett's Avatar
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From: mobile alabama /south Floria
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Originally Posted by dankl
Correct me if I'm wrong, but I'd think the bigger bore + longer stroke (408cid) would rev slower than the shorter stroke (370cid)...

Also, someone mentioned if your not going FI, go smaller cid...I'd think it would be the other way around. If you don't want FI, go bigger cid.

Sounds like your leaning towards the 370cid, either way good luck. Personally, I'd go bigger cid, as you can tell by my sig.
Thats Exatcly right .the 370 & the shorter stroke will LOVE Fi ,the longer stroke 408 is Na friendly ,i personally think the 370 will rap up quicker with Fi than the 408 will & if i am gonna add a blower or turbo on the car I would opt for the 370 ,ask a machinist about longer strokes & shorter strokes in theroy with fi & lets see what he says about it.I have ate crow before Doesnt taste well ,doubt i am eating crow on this ,heh

Last edited by zo6 vett; Feb 7, 2009 at 07:38 PM.
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