| Re: l98 heads on 5.0L?
my simple search resulted in nothing, maybe if i had an hour to sit on the comp and sort through all the stuff that wasnt pertinent then the "simple search" would have helped. i called SDPC and they told me the combustion chambers are exactly the same, i read in CHP that the 5.0L CC were 56 so if that was the truth this would only be about a 2 tenths of a compression point drop which would not be all that bad considering stock CR is 9.3 to 1 the chambers in a L05 are 65cc the L98 are 58 so if this were an L05 which it is NOT then this would actually raise compression 7 tenths bringing it to approx 10 to 1 which would probably net more horsepower just from that alone... anyway though it is an L03 and the valves on the L98 heads are indeed bigger so that would mean at the very least a slight flow increase. i have also read somewhere that the 5.0L heads have 52cc so that would mean a 6 tenth point loss which would be approx 8.7 to 1 which is still decent and would work fine with pump gas, but would it produce more power? the basic question here is will an LT1 cam and L98 heads make more power on a 305 and what head gaskets should you use... i thought it pretty much pointless to use different 5.0L heads because next year the plan is for the L98 shortblock to be stroked and this was just told hold off till then when we will reuse all the topend on that, so maybe what your saying is the LT1 cam would work well in the L03 without a head swap? and in that case, would we need to change the stock springs or are they good with around .460" lift? thanks in advance
__________________ u call it "drifting"? i call it a lack of proper traction, the fastest way around the track isnt sideways with the tires smoking (well, most of the time). oh yeah japan makes the best race bikes, but the cars are for transportation.  and thats, your new opinion!
Last edited by FlippindaBird; 09-21-2009 at 01:57 PM.
Reason: forgot something
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, thanks for the help 
