MARKSZ71

iTrader: (3)

finally got my right set in other day


Intake Exhaust
.100 72 cfm 63cfm

.200 141 cfm 112 cfm

.300 204 cfm 153 cfm

.400 252 cfm 194 cfm

.500 283 cfm 212 cfm

.550 298 cfm 225 cfm

.600 308 cfm 229 cfm

This is with a 2.04 int,1.585 exhaust. It was flowed on a 3.90 bore w 1 3/4 exh pipe and a radiused inlet on a superflow 600 bench.

gomer

iTrader: (13)

Mark, the .500 exhaust should have been 215, not 212. Sorry for the typo. Here's a before and after graph of his old heads vs. the new ones.
The blue lines are his new heads, the red lines are his old heads.

eb02z06

iTrader: (18)

So when are these going to be avaialble and how much? What is the runner sizes and what CC's are they?

gomer

iTrader: (13)

I was really in a hurry to get these installed for Mark, so I didn't get a chance to check the runner volumes. I have another set due in next week. I'm going to CC the intake and exhaust runners to see what they turn out to be. Maybe TSP can chime in and tell what they are supposed to be.

eb02z06

iTrader: (18)

So are these the TSP heads or the PRC heads? I'm assuming there working together? If it comes from TSP I'm sure they will be a good quality product.

gomer

iTrader: (13)

Mark ordered them thru TSP and had them shipped to me. They arrived in a TSP box. On the packing slip it was billed as PRC heads.

Bo White

iTrader: (59)

Post your pix of em gomer. Now I know who MARKSZ71 is lol.

MARKSZ71

iTrader: (3)

lol

gomer

iTrader: (13)

Here's some pics. I have some better ones I can post tonight when I get home.

JF WS6

Are these in stock anywhere? Or are all the ones that were available spoken for and now they are all behind on orders?

gomer

iTrader: (13)

I ordered another set Monday and was told to look for them in about 2 weeks.

JF WS6

Did you order from TSP or Racetech (Terry?)

USMC Devil Dog

Is Terry working at Racetech now? The same Terry from Patriot?

Brian is supposed to be emailing me some flow #s from a set in the shop.

Are these hand finished?

f-bodman

Pretty good numbers, not quite as good as the prototypes you had though gomer. Those did have slighty bigger valves if I remember right though. I was told by TSP mine should ship the beginning of next week. I can't wait. What size cam are you gonna run Mark? Thanks for the info fellas.

MARKSZ71

iTrader: (3)

226 226 since i only have 323 gears mine only have 204 valves not 205 like gomers

pdd

iTrader: (3)

very nice guys

MUSTANGEATER

iTrader: (10)

Any flow Numbers with the Intake in place? Also any information on who does the port work on them?


Floyd.

gomer

iTrader: (13)

Mine had 2.055/1.60 valves in them and were flowed on a different bench. The bench I had Marks flowed on is pretty "stingy". All of the PRC 2.5's will have 2.04/1.58 Manley valves. That size combo allows the heads to use the stock GM installed seats. If you go to a 2.05/1.60, you have to install larger valve seats which make the heads cost more $$$.

btw, all the heads are hand finished.

eb02z06

iTrader: (18)

How much are these heads? I would like to see what they make witha MS3?

gomer

iTrader: (13)

$1,529 outright, no cores. The next set I get will be going on a 2002 WS6 with all bolt ons, forged 347, FAST 90mm setup, 6 speed, Moser 12 bolt with 3.73's and chromoly DS, the cam is going to be a MS3. It should be on the dyno the same day I get the heads. I have a set coming for my car too and I'll be running them with a MS3.