global-i

Hi
I am looking for some advice on heads, for a supercharge LS1. (04 Holden Monaro)
What are the best heads to replace the stock items with for the setup below? (Budget of about $1600)
What cam would you also recommend in conjunction with the heads? (I still need it to pass UK emissions testing)
The other mods I am also adding at the same time as the heads is a NOS GM EFI Nitrous System (PART Number 05177NOS) running a 50 Shot just to cool the charge and a Kenne Bell, BOOST-A-PUMP .

Current Mods are
Harrop 112 intercooled supercharger running @12psi
camshafts 212/212 inlet lift .3041 Exhaust lift .3038
Dual roller cam Chain
Dual valve springs on stock heads
Pistons = Mahle Forged Aluminum.
Rods = Manley H Beam Forged Steel
Crank = Stock
Modified air intake and panel filter
Twin plate clutch
Stainless steel header and exhaust
Sports cats

TIA

headed-ws6

iTrader: (34)

I would look into some 6.0 truck heads and a 02-04 zo6 cam both are very boost friendly and can be had for 500$. Plenty of guys on the board are making north of 500rwhp with this mild combo and as far as i know is the most emission safe combo to go with without breaking the bank.

52172

iTrader: (2)

look in the sponsor sales section you can pick up some Trick Flow heads for 1600 as cast and they flow almost as well as their CNC'd version. That is the best head for the money.

98Z28MASS

iTrader: (6)

Id say maybe a lingenfelter GT2-3 cam and either a set of ported 6.0 (317) heads or if you can get the Trickflows for that price listed above that would certainly be a good option as well. Also, maybe look into some used AFR 225 heads in the for sale section. Is this a stock shortblock btw?

TrickFlowTech

Our "as cast LS1" would work out great. Check out the link to our website for full details on the head. They normally retail for $1699.95.

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