[ae1969]

The 86' turbo has a 8 to 1 compression.

ANd the 86 NA has a 9.5 to 1

?
Questions:

1. Is the head of the turbo that much different? I thought they were virtually the same except for some of the coatings on the valves? If someone has a couple of heads laying around, humor me and do a few measurements.........

2. Are the pistons the same size? Height?

3. I want to retrofit the turbo head and the turbo pistons on to my NA. (You are probably figuring out why). Will this drop my compression to the 8:1 range? I am assuming the stroke and bore sizes are the same.

My understanding is that If I swap the head and pistons I will drop the compression of my engine.

Thanks