Ferrari 365 GTS U.S. Version
This Daytona engine was pulled from our Daytona Spider restoration project car and tested before being rebuilt. This is a good representation of an average US model Daytona engine. Look at how the restrictive US model headers hurt the top end
power. A leakdown test showed some cylinders were on the wear limit. The power seems to be close to that calculated from contemporary magazine road tests, so it’s believable.
Type: 365 GTS (251)
Bore: 81mm
Stroke: 71mm
Compression Ratio: 8.8:1
Heads: stock
Cams: stock 246°/243°, 9mm/8.8mm lift
Induction: 6 Weber 40 DCN carbs with air filter housing
Exhaust: stock US headers
Ignition: stock distributors with points/condenser/coil
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