| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
06-09-2005, 02:17 PM
|
||||
|
||||
hey got a chance to score on to a set of 670 heads and from the info i got they are from a 1967 400 std HO Valves 2.11/1.77 72 CC or CR Screw in studs- dual valve springs- D port my question is would these heads work better then the 4x1H heads that are on my 1974 455
|
|
#2
06-09-2005, 02:17 PM
|
||||
|
||||
|
hey got a chance to score on to a set of 670 heads and from the info i got they are from a 1967 400 std HO Valves 2.11/1.77 72 CC or CR Screw in studs- dual valve springs- D port my question is would these heads work better then the 4x1H heads that are on my 1974 455
|
|
#3
06-09-2005, 08:38 PM
|
|||
|
|||
|
Yes they will work better if you can find 110 octane fuel. Your compression ratio will be somewhere in the neighborhood 12:1 or 13:1
|
|
#4
06-10-2005, 06:18 PM
|
||||
|
||||
|
What he said. The compression will be way too high for street use. Got a set of 7K3s that would work much better.....
|
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
