wooly

Hey guys just want some info on a pair of decent ls3 port heads.

Im after a set for my twin turbo 408. 4 bolt head looking to run 20-25psi boost. So needs to have a decent deck thickness..

Im thinking a set of trickflow 255. What are peoples thoughts has to be rectangular port.

DEFYANT

I would do a set of ported LSA/LS9 Cylinder Heads with uograded springs/valves.

stmz28

iTrader: (9)

I would go with a set of trick flow heads. I just got a set from lil john give him a call
http://www.liljohnsmotorsports.com/

CAMSTER

iTrader: (10)

Please go for them, those heads are at the top of the food chain in the ls3 engine, by the way get the 6 bolts they are stronger with the extra bolt boss in there, if you are using alum GM block weld receiver outer stud tread buss and add stud to aid block to head clamp on boost.

You can easily make them or order them from ERL performance and weld them on, you'll be glad you did.

The weak alum block will thank you cause their decks are kind of thin and will else keep you from looking at your MLS head gaskets very often.

http://www.trickflow.com/partdetail....1&autoview=sku

wooly

Thanks for the replys

My block is actually a iron ly6 so will be stuck with 4 bolt.

And yeah the trickflow seem the way to go just wanted a few more opinions to make me feel there the right choice.

I might talk to liljohn he has already supplied most of my parts already.

Cheers

sparky 2211

so how do you get the big valves in a 3.78 hole I am looking to use the early 6.0 Iron heads but I am a NuB and do not have a set of heads yet maybe monday

I8URLS1

iTrader: (15)

As others have said the TFS 255 heads are badass. I have a set that was done by TEA and I would get the 6 bolt Incase you ever step up your block later it's only $100 more and you'll kick yourself later if you don't get them. John will likely get them done through TEA as well if I had to guess