FreakChevy

Quick Q

Are those PRC heads r ported OEM LS7 heads or an aftermarket heads?

99LS6SS

iTrader: (4)

I think the PRC's are a brand new oem casting that they do work to.

Jimbo1367

I misspoke. I really meant......


He doesn't care about updates. He's got the HYPE going.

Jimbo1367

in all seriousness. the flow data looks killer. Anyone wanna give me a 427/454 shortblock so I can get these heads and find out how good they are? I wonder how bottom end power is with such a big port.

Sales2@Texas-speed

iTrader: (5)

Jimbo, it was the weekend and we need a couple days off like everybody else. Jason cares more about the PRC cylinder heads than anyone else alive! He's a busy guy and surely just forgot to get an update on his 454 up. I'll put a bug in his ear abut it.

Jimbo1367

Matt,
I was just trying to get somones (at Texas-Speed) attention or responce. I guess it worked. LOL. I am looking forward to see the results

thanks,
Jim

Jon@Texas-Speed

iTrader: (18)

A call or a quick bump would be more appreciated than big red font saying that we somehow don't care about something. That reflects badly on us when that is not the case at all. I can assure you Jason will get the info. up as soon as he has a chance. He spends more and more time in the head shop these days and less time posting on the internet. I'm not really sure what the hype is but that post was a little unwarranted.

Jon

Gordon0652

iTrader: (4)

Can not wait for mine! If/when TSP gets those castings. Changed my mind two times because of these heads. Those two times i bought other style LS7 heads, now going with these on a solid set up! Hope they get the castings this week!

Sales2@Texas-speed

iTrader: (5)

Jimmy: I remembered we actually did post the results for that build but didn't link them to this thread....you must have missed the results. Linked below for your convenience.

https://ls1tech.com/forums/generatio...gine-dyno.html

FreakChevy

What about the cost of the job if i already have stock OEM LS7 heads?

Jimbo1367

Ok. my bad. point taken.

FreakChevy

any ome from tsp can answer my q??

pantera_efi

iTrader: (1)

Remember all ITB's are not designed with the same method.

This report of the "(4") hood bubble in a Fox" may add requirements for the chosen intake system.

Now calculate the required butterfly and runner size/legnth to make over 750 HP.

Then add the cost of a "fabricated" intake, air door, injectors, regulator, linkage, air filters, AND compare the prices to know ITB products that offer the same complete package.

Finally add the "supercharged" ram effect with the MUCH cooler intake air temperature.

There is only one choice for this application.

Lance

fuel

iTrader: (13)

what size is the exhaust runner

DR.LS7

What inlet and exhaust gasket are you guys running on these 285 heads. is there somehing that doesnt have to be trimmed? does GM have in/ex gaskets to suit their LSX DR/CT heads?

Jon@Texas-Speed

iTrader: (18)

Good news guys we're working on the a PRC aftermarket casting cylinder head! We will be pricing it very similar to the stock LS7 castings PRC ported! Check it out:

Below are some screen shots of our CAD data for everyone to checkout!

supermouse4

I can't wait for more information on these heads, its going to be good.

DR.LS7

bump bump