jdhedman

iTrader: (31)

These were on the car when I bought it.. I am putting a new setup in the car and parting out the old.. but I dont know what heads these are.. any help would be amazing..

Thanks
Jeremy

all of the casting numbers and markings are ground off

jerflash

usually a CNC head porter CNCs there logo on the head somewhere like the front head surface. its messed up that the casting numbers are not on the head anymore...My guess is they are some ported 5.3 heads

Blu99T/A

iTrader: (5)

My PRC's from Texas Speed do not have any "PRC identifying" markings on them. I know the newer ones now do, but mine are a few years old and do not.

Fb0dy0nly

iTrader: (10)

Every # on the head is ground off, even just the random numbers they have imprinted?

Sounds like something someone would do on a stolen block...

01ssreda4

iTrader: (96)

D port exhaust signifies 243/799 heads. They are obviously CNC'd. Look to have Patriot duals installed. They would be worth some if you could verify who did the porting or flow numbers.

ZYA_LTR

Except that the pictures look like circle port exhaust heads to me, no D-port present. And they are center bolt heads, probably off an 98 Z28 or 97/98 Vette.

ULTIMATEORANGESS

iTrader: (4)

what kind of power did your old setup make?

garygnu

you would have to flow them to sell them ,maybe $700 if good flow numbers.

jdhedman

iTrader: (31)

The old set up made 401rwhp

jdhedman

iTrader: (31)

http://pbr40.photobucket.com/albums/...g?t=1246835492

01ssreda4

iTrader: (96)

Look past the soot and you will see the D ports. OP, can you wipe away the soot on one of the exhaust ports so we can see it more clearly?

jerflash

i did not see the D-ports at first...good call 01SS. Still bugs me that there are no casting numbers at all...kinda strange

BOBS99SS

iTrader: (2)

What cam is in the car

bayer-z28

iTrader: (14)

That was my guess as well.. Older PRC 215 LS6 style heads prolly. Early PRC heads were kind of a risk as some were dropping the rocker bosses because of the heavy intake port work. This problem was remedied in the ones following that design.
That's what I was looking for too.
Center bolt are 99 and up. And not necessarily... No casting #'s or marks = aftermarket.

01ssreda4

iTrader: (96)

IMO, if someone took the casting numbers off, they may have been interested in keeping the fact that they were CNC'd LS6 heads a secret. I mean from that point of view you wouldn't want to wipe a 241 number off bc that would appear stock. Have a 243 or 799 number would be a dead giveaway that the heads have been off the motor.

jdhedman

iTrader: (31)

Don't know what cam ie in the old setup yet. Will be pulling that later this week. The ports are d shaped I can take some more pics tomorrow night. How much would it run me to hqve these flow tested and were would I have it done? I just don't know what to ask for these.. and don't want to sell them as something they are not. Or get taken.. lol. Thanks for the help and info so far

bayer-z28

iTrader: (14)

I don't think anyone ground off the casting #'s... The odds are good that they're aftermarket heads. The only reason someone would grind offf the numbers is to hide 799 or 853 castings and try to pass them off as LS6 heads, but the exhaust ports would be a dead giveaway and the lack of the /\/\/\ marks near the exhaust side head bolts.

And it's nice to know that OP is an honorable person in the crowd looking to make an honest buck. I HATE when people try to BS a sale and pass things off.. That would be grounds for IMO.

ZYA_LTR

I think your right, it's hard to tell, but the side shots look like the Dports, i just thought form the straight on shots that the soot made it look circular, and that i was seeing the short turn in the runner. My booboo on the center bolts too, it was a late night post, no drinking and posting for me anymore.

BlackScreaminMachine

iTrader: (17)

At this point, send them to a shop for clean up and flow bench, get a fresh sheet. Being CNC'ed means work has been done and would be worth some $$$. Having a cleaned up set also makes it more appealing to a potential buyer. Have the springs check as well, and if they are in spec, have them reinstalled or just buy a new set. Your not going to lose $$ especially with recipts as the buyer would have to do the same anyways.

The biggest thing next to flow #'s is what CC the Combustion Chamber is as most people looking for heads need to know this and that will determine who are potential buyers.

jdhedman

iTrader: (31)

awesome info Guys.. Now I just have to find a place with a flow bench local