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It has been a busy week so I haven't done much with the car BUT I did check the chamber volume.
Colored rubbing alcohol:
Plexiglass, a horse syringe,
Vaseline to seal the plexiglas to the head.
Who knew that Vaseline had other uses ????
I checked 2 chambers and BOTH came in at 86 ccs. The chambers are shallower than 5 other open chamber heads I checked that showed to be 90ccs and 88 ccs.
The Summit racing Compression ratio calculator numbers are as follows:
Bore: (diameter) 4.28
Stroke: 3.38
Cylinder Head Volume: 86 ccs
Effective Dome Volume: 0
Use (-) for Dome and (+) for Dish.
Deck Clearance: .009
Compressed Gasket Thickness: .039
Number of Cylinders: 8
Compression Ratio : 9.19 : 1
So, just a smidge under 9.2 for an iron headed street 383.
Total Displacement (in.3) : 389.03
Total Displacement cc's : 6377.54
Colored rubbing alcohol:
Plexiglass, a horse syringe,
Vaseline to seal the plexiglas to the head.
Who knew that Vaseline had other uses ????
I checked 2 chambers and BOTH came in at 86 ccs. The chambers are shallower than 5 other open chamber heads I checked that showed to be 90ccs and 88 ccs.
The Summit racing Compression ratio calculator numbers are as follows:
Bore: (diameter) 4.28
Stroke: 3.38
Cylinder Head Volume: 86 ccs
Effective Dome Volume: 0
Use (-) for Dome and (+) for Dish.
Deck Clearance: .009
Compressed Gasket Thickness: .039
Number of Cylinders: 8
Compression Ratio : 9.19 : 1
So, just a smidge under 9.2 for an iron headed street 383.
Total Displacement (in.3) : 389.03
Total Displacement cc's : 6377.54