Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
carbon deposits shouldn't be a problem using modern fluids and the lack of led in the gas. and quite possibly running the highed compression with the increased heat that goes along with it may even help keep carbon deposits out of the chamber.
Posted on: 2012/7/16 10:47
|
|||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
I've decided to use the original 327 head, so I should be at 8.1:1 CR. That should be nice and safe.
The car was originally a three speed non OD, so it already has the 3.90 rear axle ratio. Not like I want to make land speed records, but cruising at 60mph or so will be comfortable. That is pretty much the minimum speed on the autobahn, and even the back road traffic moves at 100kmh(62mph). -I have other vehicles when I want to go fast ![]() My engine builder keeps getting 'urgent projects' to do and delaying my build....it's getting frustrating.
Posted on: 2012/7/17 5:57
|
|||
1953 Clipper Delux Club Sedan, 1953 Caribbean, 1969 912, 1990 Miata
|
||||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
I think you will be far happier with the lower compression. In overdrive you will be able to effortlessly maintain 125/130 all day long--but with a rate of consumption that will make you cry. These cars are amazingly un-aerodynamic.
Posted on: 2012/7/17 10:58
|
|||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
Quote:
I just drove a '54 Clipper with 327 "Thunderbolt" 3-speed OD. Don't know the axle ratio, but the car practically refused to go below 60 mph on the speedo. 70 was "comfortable" and it had a lot more beyond that. You should be able to bite a few BMWs in the ass!
Posted on: 2012/7/17 16:29
|
|||
Guy
[b]Not an Expert[/ |
||||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
Quote:
I'd like to learn more about installing the 288/327 head on a 356. Are the head gaskets the same for all three, too? Which would you use, if not? Any chance of finding that Service Counselor date? Does anything else need to be done before attaching the different head?
Posted on: 2012/7/24 22:58
|
|||
West Peterson
1930 Packard Speedster Eight Runabout (boattail) 1940 Packard 1808 w/Factory Air 1947 Chrysler Town and Country sedan 1970 Camaro RS https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=4307&forum=10 http://aaca.org/ |
||||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
The same head gasket was used for all 356 Engines and 1948-52 288 and 327. The part number for 1953-54 is different but I don't know why as the bolt pattern was still the same.
The later 288 and 327 heads will drop right on to any 356 but there may be differences in mounting of throttle linkages and the temperature gauge connections are different for 1948 and later. Service counselor Vol. 24 No. 7 has the article on changing compression ratio. Water outlet size is the same but the long stud used for the 356 would have to be used in order to retain the cast outlet neck.
Posted on: 2012/7/25 1:31
|
|||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
Thank you very much for that.
The question begs to be asked: Since the 327 head fits the 356, and the 288 head fits the 327, why did Packard not recommend putting the 288 head on the 356????
Posted on: 2012/7/25 10:04
|
|||
West Peterson
1930 Packard Speedster Eight Runabout (boattail) 1940 Packard 1808 w/Factory Air 1947 Chrysler Town and Country sedan 1970 Camaro RS https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=4307&forum=10 http://aaca.org/ |
||||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
One pure guess on that was with a stock 6 volt ignition and very low octane gas it might get into detonation. Again that's a pure guess but 6V ignitions are not known for there great ability to ignite.
Posted on: 2012/9/10 12:18
|
|||
|
Re: 9.2:1 CR in 327?
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
Quote:
Really? This is news to me. One of the reasons to go to 12-volts was for cranking the ever increasing compression on the new OHV V-8s, but never heard it was for hotter spark. (o[]o)
Posted on: 2012/9/10 16:28
|
|||
We move toward
And make happen What occupies our mind... (W. Scherer) |
||||
|