i use this little program to calculate CR's
http://www.sophtwarekodewerks.com/Packages/EngineCR/EngineCR.exeStock K
Bore 2.401
Stroke 2.480
Combustion CC = 22 (from Hondaman's measurments)
Piston type domed
Piston volume 6.25 cc
Deck clearance 0.039 (1mm) (guess)
Head gasket diameter 2.402 (guess)
Head Gasket thickness = .051
gives CR of 9.2 (exactly what my book says)
inches for my pistons (10.5:1) with K head
Bore 2.559
Stroke 2.480
Combustion CC = 22 (from Hondaman's measurments)
Piston type domed
Piston volume 7.08 cc
Deck clearance 0.039
Head gasket diameter 2.402 (guess)
Head Gasket thickness = .051
gives me 10.50:1
my pistons (10.5:1) with K head dohc rods
Bore 2.559
Stroke 2.480
Combustion CC = 22 (from Hondaman's measurments)
Piston type domed
Piston volume 7.08 cc
Deck clearance 0.098
Head gasket diameter 2.402 (guess)
Head Gasket thickness = .051
gives me 8.75:1
my pistons (10.5:1) with K head dohc rods, with F head
Bore 2.559
Stroke 2.480
Combustion CC = 27 (from Hondaman's measurments)
Piston type domed
Piston volume 7.08 cc
Deck clearance 0.098
Head gasket diameter 2.402 (guess)
Head Gasket thickness = .051
gives me 7.539:1
but you might get diffrent numbers...
bob