Jason 98 TA

iTrader: (4)

Guys we're proud to announce after months of development & testing that the all new PRC LS7 cnc cylinder head is complete! The PRC LS7 cylinder head was built for big cube ls engines wanting the maximum possible cylinder head flow for the dollar! With 390+cfm air flow capability this all new cylinder head is set to be the leading head choice for these new big cube LSx & LS7 based engines.

Extensive valve testing has resulted in an all new hollow stem valve option to help keep both price & valve weight down! No longer will it take $3000 to build a LS7 based cylinder head for your big cube project!

Current price on the base PRC LS-7 Cylinder Head is $1699.99 with standard stainless REV valves & stock LS1 springs. Upgrade to the all new PRC hollow stem valves & PRC double spring kit & the complete cylinder head kit is only $2199.99!

Here's the options available with these cylinder heads:

Stainless Valves / Titanium Valves / Hollow Stem Valves
Standard Spring / 928 Comp Springs / PRC Dual Spring Kit

Here's Flow data for you guys!
LS7 Int LS7 Ex PRC LS7 Int PRC LS7 Ex
cfm cfm cfm cfm
.200 161 114 168 119
.300 227 171 244 179
.400 291 193 304 207
.500 330 203 345 219
.600 351 209 375 229
.700 359 390

Check out additional pics & info @ http://texas-speed.com/shop/item.asp...d=823&catid=40

MARKSZ71

iTrader: (3)

heads look great jason

DONAIMIAN

iTrader: (18)

Ive been waiting to see who would be the first to offer a CNC program for these heads. Looks good.

Jason 98 TA

iTrader: (4)

Thanks guys!! We worked really hard to make this thing happen!

toneloc60

iTrader: (7)

I really want heads like this with the 6bolt/cyl option. The only heads offered right now with that option are ETP's for more than $4k. Any plans on making this happen?

Jason 98 TA

iTrader: (4)

Not at this time, currently we're only working on stock castings.

Thanks

Jason

toneloc60

iTrader: (7)

What size are the combustion chambers? I'm really debating whether I will need the extra 2 bolts per cylinder. I'm shooting for 600-650 rwhp NA out of a 441 ci LSX block. I know the heads can handle that, but I would also like to hit it with a 300 shot.

njc.corp

i am pretty sure it will take n20-

ChaseSS

iTrader: (17)

that is seriously an awesome product, glad to see you guys found a way to make that head affordable and flow 390+ cfm!! I now know what heads I want on my next build

toneloc60

iTrader: (7)

giving a bump for a good deal!