i am trying to see if this is at all possible, or has been done.
i recently have read a post where a le3 package did 420 rwhp stock bottom end with stok sized valves, with heads that flowed in the 270 range, with nice bolt ons.

i was trying to see what would a stock bottom end do with some cnc'd lt4 heads and intake that flowed 300+cfm's with 2.08 valves and a big custom cam, what would a setup like that put down, any suggestions?

 

LE3 valves are 2.055 and 1.60.... stock is 1.94/1.50

You wouldn't need a big custom cam to go with LT4 ported heads.

Bret

 

so with the right lt4 combo. wht kind of numbers are possible?

i think the guy that did 420 w/the lew had 2.00 valves, the old style, not the new.

 

Nope.... Lloyd only has LE3 heads with 2.055/1.60 valves...

You could make some pretty good stink with a LT4 head and a cam like the LE2.

Bret

 

these are his heads, i must have been mistaken, these arent the le3's, but these are what he used to do 420 rwhp.
- Lloyd Elliot heads with:
Ti Retainers
Comp 977 Springs 150 lbs on the seat
Rev 2.00/1.57 valves
Bronze Liners installed
Competition Valve Job
11.47:1 Compression Ratio

is 430+rwhp possible with some lt4's and a le3?

 

I am curious about the same thing. I have a set of LT4's i want to use on my 383. I just emailed Mr. Elliot to ask him a few questions.

 

There is a trans am on these boards with afr lt4 195's ported by e.b. racing and a custom cam from joe overton who is making 450rwhp and 400rwtq. If i were you I would send my lt4's to L.E. and get them ported to the le3 level then have either him or a number of of other people grind you custom cam.(joe overton,bret bauer,llyod,advanced induction,etc.) I am not sure if you heads will flow 300cfm but there is a lot more to it than that. Tell llyod you want to make the most power you can, bench flow numbers are not everything.