Sportmachines
Active member
We are looking at using these heads on a build. Can anyone identify what these are? Something just doest look right. We were thinking it is a L-35.
Can anyone identify these Cylinder heads?
- Thread starter Sportmachines
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Sportmachines
Active member
Re: Can anyone identify these Cylinder heads?
We did notice the heart shape chamber. I will have to get some more pics. Anyone else?
We did notice the heart shape chamber. I will have to get some more pics. Anyone else?
nallj92
Active member
Re: Can anyone identify these Cylinder heads?
pictures of the intake ports/bolt patterns will also rule out vortecs or l35's
appears to have intake bolt hole bosses for l35/lb4 heads but with the vortec combustion chamber design(looks cast in) from what the pictures show.....interesting curious on date codes for these.
pictures of the intake ports/bolt patterns will also rule out vortecs or l35's
appears to have intake bolt hole bosses for l35/lb4 heads but with the vortec combustion chamber design(looks cast in) from what the pictures show.....interesting curious on date codes for these.
Sportmachines
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Re: Can anyone identify these Cylinder heads?
Now it gets interesting.
Now it gets interesting.
Sportmachines
Active member
Re: Can anyone identify these Cylinder heads?
So they will bolt right up. We may have found something off the wall.
So they will bolt right up. We may have found something off the wall.
Sportmachines
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Re: Can anyone identify these Cylinder heads?
This is very very interesting. You got any pics to compare?
This is very very interesting. You got any pics to compare?
Sportmachines
Active member
Re: Can anyone identify these Cylinder heads?
I wonder if it is something GM was trying out? The best of both worlds. Wonder how many of these heads are around?
I wonder if it is something GM was trying out? The best of both worlds. Wonder how many of these heads are around?
cloneman315
Active member
Re: Can anyone identify these Cylinder heads?
mpi/cpi truck or marine heads?
mpi/cpi truck or marine heads?
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Sportmachines
Active member
Re: Can anyone identify these Cylinder heads?
There's a local guy that welds cylinder heads?
There's a local guy that welds cylinder heads?
DaveP
Active member
Re: Can anyone identify these Cylinder heads?
So what IS the casting number and date of the OP's head? The question was asked three times, but never answered.
I too have a pair of 8181 heads. The date is D105 on both heads. April 10, 1995. That's pretty "late". But they do not have the chamber shape in the OP's pic.
I have a hard time believing that there is a different chamber shape with the 8181 casting number. This is not 'normal' behavior for GM based on decades of experience of observation.
So what IS the casting number and date of the OP's head? The question was asked three times, but never answered.
I too have a pair of 8181 heads. The date is D105 on both heads. April 10, 1995. That's pretty "late". But they do not have the chamber shape in the OP's pic.
I have a hard time believing that there is a different chamber shape with the 8181 casting number. This is not 'normal' behavior for GM based on decades of experience of observation.