impaled

i am looking for a set of LT1 heads to port and polish with my instructor, and found a set of 93 heads. will those heads work fine or do i need a '96 set or heads?

thanks.

fergymoto

iTrader: (129)

They will work.

chevy42083

I've always wondered the same thing.

I have '93 heads with a 94/95 intake. I've seen some places that claim '93 head ports were shaped slightly different. .... but it's all a crap shoot as to whether the ports on mine were matched or not. Never had them off to even take a look.

impaled

as far as inspection goes, i obviously cant magnaflux them (aluminum), dont want to pay to get them pressure checked, which leads me to die penetrant to look for cracks. so where could i get some die pennetrant?

i dont want to blow $150-200 for heads that are cracked

if they are just a little warped my instructor will help me mill them as long as it doesnt send my compression beyond 93 octane.

ss.slp.ls1

iTrader: (36)

Try to find a set of heads with casting number 10207643 or 10128374, they have more meat on them and are more desirable for porting.

Hardtop94

iTrader: (14)

i have the stockers off my 94 z28 i started porting one but didnt finish and the other is untouched, the come complete and have no cracks, i pulled them and upgraded, pm if your interested but otherwise any year lt1 head will fit.

impaled

thanks for the good casting numbers.

$O$OE

iTrader: (14)

are the heads i bought of you any of those listed above?
I always wondered about those heads if they had more meat on them, was never sure though.

impaled

what is a fair price for a set of unworked LT1 heads? just to make sure i dont pay too much...

$O$OE

iTrader: (14)

I have no idea, im guessing around no more than 100

whammer33024

iTrader: (6)

if you found them for 100 bucks then you're doing REALLY well...175-200 is usually what they go for...trust me...i'm looking right now, lol

ss.slp.ls1

iTrader: (36)

Not sure. You have to look at them.

Last time I bought head, I picked up a set for 300 about 3 years ago.
I'd try to get them for 200 or less.

$O$OE

iTrader: (14)

yeah ill check them out in march or ill have my brother check them out

Puck

iTrader: (17)

93 heads should be the 374 castings.

Like stated, they will all work on any LT1. Also, you would have to mill stock heads a LOT to get out of pump gas range with the stock block and pisons so you shouldn't worry about that either .

impaled

i found a set of 374 heads for $150 and am going to pick them up in a day or two.

as far as porting goes, what do you think i will be able to put in as far as valve size?

ss.slp.ls1

iTrader: (36)

I don't think you want to go anything bigger that 2.02"/1.6" to avoid valve shrouding. But I'd double check on that.

impaled

the AI compition port has 2.000 and 1.560" valves, so that would probably be sufficient. the 1.6" might be pushing it at that rate. i know AI has put alot of thought and testing on their LT1 heads.

1badzee

iTrader: (12)

Damn, that better have been some good head if it cost you that much!

ss.slp.ls1

iTrader: (36)

LOL. For that kind of money, I could get what ever I want.

Hardtop94

iTrader: (14)

trying to dump my stockers for 100 bucks seen them for more but dont know why you would pay more, i found a set of edelbrocks on craigslist complete for 500 thats a deal but they wont work for my setup, going to get a set of the patriot lt1 heads they look like a great buy with all they have