My SIII before the build.
We have lost 1/3 of the compression in No. 2 cylinder and found a loss of power after our trip back from Invasion VIII.
Traveling with traffic at 70MPH for 6 hours may have been a little much for the old girl.
(I will provide a breakdown of the steps I took to do the work at the end of the page, I hope this will be of help to others)

SIII engine above before the work starts.	SIII engine above before the work starts.
Rocker cover and rocker assembly pulled from the head and ready to pull the head.	Head pulled from the block
View of head	View of head
View of head	Top of block after head was pulled - The copper / silver gasket is still on the block.
Top of block.	Top of block
Starting to clean up the head	View of head and water passage
View of head	View of head
Almost finished cleaning the head	Almost finished cleaning the head
Almost finished cleaning the head	Cleaned up the water passages
Top of piston (cylinder #2), until I clean up the piston I will not be sure but it looks like the following letters are printed on the top of the piston.	View showing top of head
New head gasket	New head gasket
New head gasket	Head Gasket and rebuild materials, Ultra Black for sump gasket, Lube Assembly Grease for pistons etc. Brake Parts Cleaner to clean head, pistons etc. Ultra Copper for exhaust gasket, Copper Spra-A-Gasket to Coat Head Gasket.
All 4 pistons pulled from the block	Now to start cleaning each piston.
Two different rings used at the top land	Original rings are removed.
Piston #1 - how clean should clean be?	Piston #4 has one thin and one thicker ring used at its top. Piston #1&#3 have a single thicker ring.
"L" Left?	"D" grade cylinders are 3.2114" to 3.2118" dia
"HC" - High Compression ?	? Inside ring - why
Oil ring on left - secondary top ring on right	Inside ring and standard ring
Rod bearing	Rob bearing
Clean Pistons - I will check the ring lands when I receive the new rings from SS.	Pistons all clean - but may not be useable due to ring lands are worn.
Mod to timing cover for new build - chevy seal	I then purchased a new set of rings for the pistons. Measured the ring lands to make sure they would still be ok with the new rings.
I purchased a ball hone and engine cleaner. Honed and cleaned the entire block.	(I had a computer melt down and lost a number of photos of the build. The image above is the finished rebuild.)
Each cylinder was checked, top middle and bottom of the cylinder. Using a new ring and measuring the gap at each location of each cylinder. I found that the block was still ok to use as it was, yet if there is a next time, a great deal more work will need to be done (oversized pistons and rings etc.).	I installed the rings, didn't need to gap them at all (things are at there limit). I used assembly lube, installed each piston matching things up as they had been removed. Bolted things down, installed a new timing cover, rebuilt the cabs with new kits, installed a new NOS fuel pump, new oil cooler, lines, coil and fire things up.
Custom center caps have been made for the rebuild and they look quite good.	MGB seat, new role bar and original boot rack installed for the 2009 summer season and we are good to go.
I hope that I have been of some help, please feel free to contact me if you are doing the same to your Alpine. I would love to help in any way.

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