cammednasty

I got a 94 camaro and the guy i bought it from said they were lt4 heads but i dont think so. the numbers are:
drivers side: 10128374 4063
passenger side: 10207640 4188
if anyone can identify if these are stock or not please let me know

djjab57

iTrader: (17)

374 is a stock head and are you sure the 2nd isn't 643 ? weird it has 2 different heads he must of replaced one or both but from different cars. Well there is 3 different numbers so 640 might be the other

cammednasty

i took the valve covers off because i thought one of the lifters was ticking but the push rod is actually rubbing. the intake must have been ported and now it doesn't fit right.

djjab57

iTrader: (17)

I'm not sure about this but may not fit cause the heads are different. I'm not sure if the different casting are the same or not but I'm sure one of the smarter peeps on here will chime in. I dont see how porting it will change the fitment. With changing the heads my 1st thought would be he ran the car hot and warped the heads. LT4 heads only came on a year or 2 vettes if i remember right

ElkySS

iTrader: (6)

only on 96 grand sports and very few 1997 ss camaros

1963SS

I just checked mine and they are #12555690. That's my LT4 number. There were two others. One had problems with the studs and a repair kit was on the recall list, I think and they were superceded by a different part number with the proper parts installed. They were numbers 12363287 and 12557773. I believe that's all of them........but I could be mistaken.

defaultexistence

iTrader: (11)

OP,No you don't have lt4 heads
Btw
http://www.grandsportregistry.com/lt1vslt4.htm

Camaro350Z28

iTrader: (6)

LT4 heads actually have lt4 stamped on them under the valve cover. I think you can even see it though the oil cap

jmswain

Yes this is true , I have a lt4 with after market valve covers , I have to take them off to see it . But you are right the lt4 stamp should be on passenger side under the oil cap .