dhdenney

iTrader: (53)

Bought these heads off Ebay. They're supposed to be ported and look like it to me because I think I see "machine swirls" in the ports. I just wanted confirmation from someone who knew because this is my first set of LS1 heads. I just thought the ports were a little skinny to have been ported.

Bader-X

iTrader: (2)

I suggest posting more pictures from inside the ports showing the valve guides and also inside the exhaust ports (with aiming a light on them for the picture if no flash) and if the valves are not there a pic from the bottom of the valve locations showing the inside of the port from there to help better tell if they were ported and what experienced people might say.

dhdenney

iTrader: (53)

OK thanks. I'm going to work right now but I might try and get some more pics later.

99blancoSS

iTrader: (115)

Yep, what he said. Theres more to porting a head than the intake runner.

dhdenney

iTrader: (53)

OK here's a couple more. Camera is not that great and one has a glare on it but probably tells a better story. I just didn't have anything (stock) to compare these heads to. I can see where they've been worked some.

jeffstar

iTrader: (6)

those look handported to me or maybe hand finished? Get the flow tested!

Bader-X

iTrader: (2)

http://www.motorsporttech.com/fbody_engine01.asp#mtitb

don't know if they're stock vs ported ls1 or ls6.

oange ss

iTrader: (50)

what ever they are, hope you got em cheap...

dhdenney

iTrader: (53)

I gave $700 shipped for them. I took a chance on them. You guys are starting to make me feel bad.

dhdenney

iTrader: (53)

I thought they looked handported too. They actually feel very smooth vs what they look like.

oange ss

iTrader: (50)

sorry man, not my intention....but there is a wealth of information on this site from people who have alot of knowledge and or experience at that stuff, maybe should have asked first...good luck

dhdenney

iTrader: (53)

They looked good from the pics that were in the listing but who would I have ask? You can't post Ebay auctions on the forum unless they're your own. I thought it looked like a good deal so like I said I took a chance. Even after getting them I couldn't tell a whole lot about them cuz I never had any LS heads before. That's why I posted. LT1 heads, I can tell quite about about them. After looking at my LS heads, I realized I didn't know much so that's why I am asking now.

Studytime

iTrader: (15)

It looks like a stock head someone hit with a cartirdge roll and threw on ebay to make some quick money. The intake runner looks untouched as well as the exhaust. They didn't even take the rocker arm bump out of the intake. I honestly wouldn't spend money getting them flowed if the obvious things are not done, then the port work you can't see probably wasn't done either.

Sorry man, but I think you've been had.

Ben T.

jeffstar

iTrader: (6)

Yeah, you have probably screwed yourself honestly. I home ported a set of LT1 heads once and the car made pretty good power (380 rwhp) with a cam and exhaust, maybe you'll get lucky and make around 400 with a cam/intake/exhaust?

Sorry.

Xtnct00WS6

iTrader: (8)

Just hand port them yourself for the cost of the equipment. Those will flow very near stock as of now. You could also send them out to someone like Patriot Performance for CNC'ing. Good luck man.

dhdenney

iTrader: (53)

I was wanting to run these with my turbo build. Although you don't have to have the best head for FI, I'm not going to run them yet. First LS project going downhill already.

Xtnct00WS6

iTrader: (8)

Those have too much compression with the 243 for FI man. You should look at some 6.0L heads.

dhdenney

iTrader: (53)

They're 241's. With a 28cc dished piston and a .053" gasket, they yield CR in the low 8's.

dhdenney

iTrader: (53)

These are stock valves aren't they?

Xtnct00WS6

iTrader: (8)

Ohh ok...my bad, you didn't mention what casting you had. Yes, those look like stock valves.