mfj

definitely stage 3 heads and cams with a 5.1L stroker kit. Get billet though, i seen the 3.4L cobra destroy the factory forged manely h-beam rods. Oliver billet rods are pretty much the strongest on the market, for our modular motors...

mfj

but im not sure that u know exactly what ur getting yourself into [&:]

mfj

for ur heads, for the 3.4L whipple to reach its potential: at least 40 cfm over stock

cams:

intake lift: 484
intake duration: 258

exhaust lift: 484
exhaust duration: 270

Fobra

I wouldnt do a stroker.. just get it bored over... but again that depends on whether or not your sticking with a positive displacement blower... this also relates to cams.. youve already got cams that are profiled for a positive displacement s/c, they are not as "all around" as the older non s/c cobra cams.. so if you were going turbo a cam upgrade for you would probly pay off more, than say a person with an older cobra motor who was going turbo with a built motor given the 7500+ rpms you would be turning, however the opposite is also true, meaning that cams for you wont pay off as much with a positive displacement blower, as they would for an older cobra moving to the same type of blower...

so what all that really means is your cams are fine for your type of FI, however a port and polish, new valves and springs would be worth it.

evil monkey

Thats some awsome mod's your talking about, what about cooling?

chevysalesman614

i'm just learning about v-8s. however, what i've learned from my cobalt (please dont laugh if i'm wrong) is that when you swap to a more effecient supercharger it produces less heat therefore the stock system is adequite. although, we (cobalt owners) we're getting alot of cobra heat exchangers coming our way ( a huge upgrade for us) so i guess its a popular mod for those (cobra owners)still using the heaton with smaller pullies.. probably only those who went with pullies that overspin the blower.

please dont read what i have said and take it as absolute fact. its just a guess based on prior eaton s/c experience(M62)


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