"The 68-69 383 4bbl. is the only 383 to have been built with positive deck height from the factory. The blueprinting manuals list it as +.020 to +.021"
?????
NO , totally INCORRECT .
Quote: IIRC, according to information posted in a similar recent thread, compression height for a '69 383HP piston was 1.932. This would put the piston 0.0025" in the hole assuming a deck height of 9.980" and rod of 6.358" and stroke of 3.375".
This is correct and the 68 383 4bbl and 4bbl HP is the same as in 69. just an FYI the 68-69 383 2bbl has the same CH piston but it has a shallow round dish to lower the compression towards it's rated 9.2.
Quote:
Quote: 021 above the deck would be impossible to put heads on it....
Not impossible with the open chamber heads used in 68 and 69.
Or a very thick head gasket. The .021 spec is the NHRA spec, many people CONFUSE this as actual built factory spec.
it appears that at least one member has actually paid attentions to my maniacal
