Aluminum heads, what can you tell me about these?
02-08-2003, 06:53 PM
#1
Safety Car
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Aluminum heads, what can you tell me about these?
Here are the numbers I found on my aluminum heads. On the left section- 113198. On the right section- 14011077. These numbers were found on the driverside head. I have been told before they are definetly GM heads (snow flake symbol on the edge). My main question is does anyone have part numbers on the valve stem seals that go in these heads???? Any comments??? Thanks abunch.
So far what I have found out is they were produced in 1989-94. Are open chamber, 118cc, IP 295cc, replacemant C port. Any comments much appreciated.
[Modified by 71,454,4spd, 6:02 PM 2/8/2003]
So far what I have found out is they were produced in 1989-94. Are open chamber, 118cc, IP 295cc, replacemant C port. Any comments much appreciated.
[Modified by 71,454,4spd, 6:02 PM 2/8/2003]
02-09-2003, 04:47 AM
#2
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Location: In Dreams There Is Truth Ohio
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Re: Aluminum heads, what can you tell me about these? (71,454,4spd)
Good heads, square port, 3rd design, ones Im running on mine, have that crazy hump in the exhaust port....don't know why the General put that hum there, but flow numbers are better without the hump..
All you have to do is measure the diameter of the valve stem, that will tell you the seal size, could be 11/32, or 3/8.
All you have to do is measure the diameter of the valve stem, that will tell you the seal size, could be 11/32, or 3/8.
