00 Trans Am

With 383 stroker kit from texas-speed-
http://www.texas-speed.com/shop/item...d=884&catid=88
And MS4 and 2.5ported LS6 heads on an LS1-
http://www.texas-speed.com/shop/item...d=832&catid=47


I was thinking of this set-up But im still not sure just looking for some ideas and opinions on it.
And if anyone has this set-up and if they can give me any help and If i should bore out the stock block.

Paint_It_Black

iTrader: (1)

You'll need a bigger cam and much better heads if you want to sniff 550 from a 383.

00 Trans Am

So what kind of power do you think it would make over 500?

Marc 85Z28

iTrader: (8)

A 383ci engine with that cam and heads is going to make around 100HP LESS than your goal.

Benny Blanco

If your gona spend the money go with a 414 from TSP thats one bad *** motor or a 408 both are sweet ......BB

00 Trans Am

trying to reuse my block or get a ls2 or 6.0L iron block if the LS1 block wont make much power...

Paint_It_Black

iTrader: (1)

it will make good power, you can get 500 out of it, the thing is the bore size limits bigger valves.

00 Trans Am

what about the 6.0L iron block im thinking og doing it only 750bucks and should be too expensive to build and i can get a 408 outa of it.

Paint_It_Black

iTrader: (1)

You should easily break 500 on a 408 unless you have a very high stall convertor and a TH400 trans. But for a 408, you will DEFINATELY need a bigger cam than a little MS4. Rough estimate, add 10 degrees duration to each lobe going from a 346 to a 408 for similar camshaft / cid ratio.

landonew

Thanks. That is very helpful information. So If I wanted a car that had the same street characteristics as my H/C car, I would go with a 240/242. What about the lift? That should go up too correct?

Paint_It_Black

iTrader: (1)

Lift will because the lobes will be bigger assuming you're just going with longer duration in the same lobe line (LSK, XFI, XE-R, XE for the common comp cams stick). Displacement absorbs overlap, so yes, the characteristics should be similar. You don't neccessarily need it ground on lobes with .700 lift or anything, you have to stay within your heads and valvetrain. If the heads back up or flow goes static at say, .650 then don't run a lift over .650 and make sure your springs can handle the lift. Don't be afraid of lift either though. 2 valve engines love more lift. I run .644 on my 228 intake lobe, nowadays these springs are made for it.

00 Trans Am

well ima go with the 6.0L iron block and some stage 3 ported 6.0l heads and the 408 stoker kit from teaxas-speed. Just idk what cam to go with yet.....

Apollo0526

iTrader: (3)

id say a good size cam for bigger cubes, take a look at tsp gaint

Paint_It_Black

iTrader: (1)

Get a custom one.

00 Trans Am

This set-up should be well over 550rwhp lets just hope it all goes as planned. Should have it finished after summer Right now T56 and the ls1 engine is out on a stand. I installed an 228/232 cam in it and after 6months of running good it just hit the *******. lifter grinded cam up.