The Mopar 383 {1962 thru 1967} ~ 'You Magnificent Bastard'
Pepper-Pete,
In 1963, here are the Compression Rates for the 383
383/305 HP ~ 2-Barrel ....... 9.2-1
383/330 HP ~ 4-Barrel ...... 10.0-1
Both had the same Cylinder Heads with a 73.5 CC Combustion Chamber.
And both had the same Piston/Deck Height at {-.014"}
But, the 383/305 HP had Dish-Pistons with a .045" recess {= 5.11 CC's}
Mopar Engineers...... You Magnificent Bastards
On the 383, Mopar Facts........ 5.11 CC's = .8 in Compression Ratio.