Quote:
Originally Posted by bubba428
well thats cause the ignition system and the Ls1 have a very good bore/stroke combo
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I think it has less to do with bore/stroke and ignition as it does with cylinder head technology. LS based motors have 15 deg. heads versus old school 23 degree heads. 15 deg. heads on a SBC are super ultra race bred type heads, think nascar, think world of outlaws on alcohol.....Even 18 degrees stuff, while now is kinda common, but even that was once only for the elite.
here's a link to flow sheets for lots of different aftermarket heads most are 23 degrees units:
http://www.purplesagetradingpost.com...fo/heads1.html
Heres a link to brodix 15 degree heads....look at the difference in flow potential:
http://www.hekimianracing.com/brodix.htm#B12
Now compare the flow numbers of the LS1 units in the first link to the brodix 15 degree flow numbers......see the similarity????
Its in the heads more than anything.
Chris