I have recently bought 3 Spitfire 1500 s, one is a '73 and two are '80 s.
They sure are cheap these days! I have been trying to determine what the
compression on these 1500s is, but I seem to be getting conflicting
information from all of my resources. Is there a way to tell from the
numbers on the heads what the compression is or was the compression changed
by the shape of the tops of the pistons, such as the flat top pistons used
in a TR-6 giving the 9.0:1 as apposed to the 7.5:1 using the 'dished'
pistons. Is there good source for this info?
Ed Dressler
Delaware Valley Triumphs
'72 TR-6
'62 TR-4
'61 TR-3A
'68 MGC
Multi Spits
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