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Old 11-07-2012, 04:56 PM
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Why do my heads say ?

Pontiac on them? I just got this car and I was told it is a SBC 383 but I noticed the heads say Pontica on them and appear to be aluminum. Any other casting numbers to look for to identify them and what they could be?


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Old 11-07-2012, 05:53 PM
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Originally Posted by Dajerseyrat View Post
Pontiac on them? I just got this car and I was told it is a SBC 383 but I noticed the heads say Pontica on them and appear to be aluminum. Any other casting numbers to look for to identify them and what they could be?

Holy Cow Dude you got a set of these:



10033867 Pontiac Motorsports Head
This aluminum head for small-block Chevy V8s offers a substantial increase in both airflow and horsepower with minimal preparation. It has a standard intake port location, and is compatible with most small-block V8 components. Ductile iron seats for standard length 2.100" intake valves and 1.625" exhausts are installed. Phosphorous bronze guides are included with this head but are not installed. It has conventional 62cc combustion chambers, and uses 3/4" reach gasketed 14mm spark plugs.

This is a solid gold find in aluminum!

Bogie
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Old 11-07-2012, 08:38 PM
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Originally Posted by oldbogie View Post
Holy Cow Dude you got a set of these:



10033867 Pontiac Motorsports Head
This aluminum head for small-block Chevy V8s offers a substantial increase in both airflow and horsepower with minimal preparation. It has a standard intake port location, and is compatible with most small-block V8 components. Ductile iron seats for standard length 2.100" intake valves and 1.625" exhausts are installed. Phosphorous bronze guides are included with this head but are not installed. It has conventional 62cc combustion chambers, and uses 3/4" reach gasketed 14mm spark plugs.

This is a solid gold find in aluminum!

Bogie
Im guessing this is a good thing??LOL.. I have the receipts for the engine build and the valves are Manley SS, with titanium retainers and some other real deal parts..

So they are made by Pontiac for motorsports applications? And pretty rare I assume?
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Old 11-07-2012, 08:54 PM
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Holy Cow Dude you got a set of these:



10033867 Pontiac Motorsports Head
This aluminum head for small-block Chevy V8s offers a substantial increase in both airflow and horsepower with minimal preparation. It has a standard intake port location, and is compatible with most small-block V8 components. Ductile iron seats for standard length 2.100" intake valves and 1.625" exhausts are installed. Phosphorous bronze guides are included with this head but are not installed. It has conventional 62cc combustion chambers, and uses 3/4" reach gasketed 14mm spark plugs.

This is a solid gold find in aluminum!

Bogie
Quote:
Originally Posted by hcompton View Post
I may be talking out my arse but i think they are nascar/racing heads from before sb2 and 18 degree heads. Now they are just sold out of the parts catalog for engine builders. Good stuff usally. A few of the custom gm heads are really good and actually used in many racing applications.

Does the car run it does sound like a real deal effort. I guessing its fast.
I just picked it up and have been getting thing sorted out. It starts and runs, aside from pulling it in and out of my garage I haven't driven it, but it does sound like it's pissed off at the world It revs so damn fast its not even funny..
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Old 11-07-2012, 08:56 PM
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here is the engine they are on.Dry sump 389 stroker..



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Old 11-07-2012, 11:27 PM
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How does one go about putting a value on a car that nothing is really known about? I mean, most times when a guy buys a race car things like what heads are on it et cetera are central to its value.
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Old 11-08-2012, 05:57 AM
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This is turning out to be quite a cool car,what kind of a deal did you get on it?Let me know if there are others like it for sale? as long as its not too much
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Old 11-08-2012, 08:20 AM
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I'd be pulling it down for a good inspection and possible freshening considering it's a race car.

Once it's apart the specs can be recorded. Once that's done- depending on what's found- changes could be made to make it more street/pump gas friendly if it's going to see much street time. But at least then it would be known what it is that's being dealt with.
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Old 11-08-2012, 09:18 AM
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If you keep idling this thing in the driveway you are going to foul the plugs again.
and will be replaceing them again. You need to take this car out and drive it.
prefered a nice long hi way drive to get the combustion chambers cleaned out.
Believe me I have been dying to do just that...A hurricane last week and a friggin noreaster this week have been preventing that.Mother nature is not playing nice.. FYI I have to pull it in and out to work on it or get stuff off my loft in my garage, so thats the closest to driving it I have gotten..

On a side note Im getting better at not stalling it out pulling it in and out, down to 3 stalls each attempt..(the clutch is really tricky and has a very unforgiving throw)...
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Old 11-08-2012, 09:21 AM
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How does one go about putting a value on a car that nothing is really known about? I mean, most times when a guy buys a race car things like what heads are on it et cetera are central to its value.
I trade my car for it, it was a no brainer for me cause the body and suspension set up were exactly what I was looking for. I have all the receipts for the engine and have an idea of whats in it based on the owners description. The car was used as a road race car and has seen track time at Limerock and Poccono raceway according to the owner. It may be a little harsh on the street, but thats what I like.
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Old 11-08-2012, 05:40 PM
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what times did it turn at limerock raceway? anything in the low 50s is very very impressive
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Old 11-08-2012, 06:33 PM
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what times did it turn at limerock raceway? anything in the low 50s is very very impressive
Not a clue...Didnt ask..
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