Match Race ~ 1966 Valiant 273/235 HP vs. 1965 Corvette 327/250 HP
1965 Corvette ~ 327/250 HP ~ Powerglide
Was always labeled as, the 'Girlie Version Vette'
The 327/250 HP Engine was the same Block, Cylinder Heads, Camshaft and Valve Train as the
327/300 HP Engine.
Pistons ........................ 10.5-1 Compression Ratio {Flat Top Pistons w/Notches}
Deck Height ................. {-.014"} Below Deck
Cylinder Heads .............. #3782461 "461" 'Double-Hump Casting' {ie; 'Fuelie Heads'}
Combustion Chamber ..... 64.0 CC {Factory} ~ 57.3 CC {Minimum}
Valves .......................... 1.94" Intake ~ 1.50 Exhaust
Port Size ....................... 160 CC Intake ~ 62 CC Exhaust
Camshaft ...................... 'Hydraulic' #3733431 {ie; early '300 HP Cam'}
Lift ............................... .399"/.399"
Duration ........................ 250*/250*
Overlap ......................... 32.5*
Valve Springs ............... #86 lbs. @ 1.66" {Valve Closed} ~ #180 lbs. @ 1.26" {Valve Open}
Intake Manifold ............. #3844457 Cast Iron Dual-Plane Square Bore {Low-Riser} {1.50" x 1.50" Throttle Bores}
Carburetor .................. Carter WCFB #3696S
CFM ........................... 425 CFM {Advertised}
Throttle Bores ............. 1.437" x 1.437"
Exhaust Manifold ......... 2.00" Header Outlets
Fuel Inlet Line ............. 5/16"
1965 Corvette ~ 327/250 HP ~ Powerglide
Was always labeled as, the 'Girlie Version Vette'
The 327/250 HP Engine was the same Block, Cylinder Heads, Camshaft and Valve Train as the
327/300 HP Engine.
Pistons ........................ 10.5-1 Compression Ratio {Flat Top Pistons w/Notches}
Deck Height ................. {-.014"} Below Deck
Cylinder Heads .............. #3782461 "461" 'Double-Hump Casting' {ie; 'Fuelie Heads'}
Combustion Chamber ..... 64.0 CC {Factory} ~ 57.3 CC {Minimum}
Valves .......................... 1.94" Intake ~ 1.50 Exhaust
Port Size ....................... 160 CC Intake ~ 62 CC Exhaust
Camshaft ...................... 'Hydraulic' #3733431 {ie; early '300 HP Cam'}
Lift ............................... .399"/.399"
Duration ........................ 250*/250*
Overlap ......................... 32.5*
Valve Springs ............... #86 lbs. @ 1.66" {Valve Closed} ~ #180 lbs. @ 1.26" {Valve Open}
Intake Manifold ............. #3844457 Cast Iron Dual-Plane Square Bore {Low-Riser} {1.50" x 1.50" Throttle Bores}
Carburetor .................. Carter WCFB #3696S
CFM ........................... 425 CFM {Advertised}
Throttle Bores ............. 1.437" x 1.437"
Exhaust Manifold ......... 2.00" Header Outlets
Fuel Inlet Line ............. 5/16"
