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mikediaz · 05-19-2006, 09:43 AM

Hey guys. I know where the water inlet is on the tripower manifold (its the one with the thermostat in it no doubt). But where is the water outlet on it? I can see that on my 4bbl manifold there is a small 90 degree pipe that a hose clams onto which I must assume is the outlet pipe but I see no such pipe on my tripower manifold. Does it screw in or something? Where does it go?

Thx
Mike

T.Weber · 05-19-2006, 10:26 AM

Yes,
the nipple is threaded and screws into the Tri-Power manifold just like your 4BBL manifold. It WILL be a PITA to get out the 90 deg. nipple with out destroying it tho.

mikediaz · 05-19-2006, 10:55 PM

hope they make repro ones... i'd like to leave my 4bbl manifold as in tact as can be.
thx for the info!
mike

mikediaz · 05-19-2006, 11:22 PM

Wait I was just looking at my tri power manifold and couldn't find any threaded holes where the 90 degree nipple could screw into. Well.. other than the hole I<i>thought</i> was for the temperature sensor. There is a mysterios hole right next to the thermostat hole though... is that where it goes.. mine's not threaded though...
Anyways I appreciate any and all help.

Mike

T.Weber · 05-20-2006, 03:33 AM

Mike,
There is one listed on eBay now. Search 62 Pontiac and it will show up.

Carl A · 09:14 PM

Do these pics help.Pic #2 Is where your mystery hole goes to on back of timing cover.Do you have the nipple on the back of head by the distributor.

Carl A · 05-20-2006, 09:10 PM

This is a pic for 64 ?

6T5 Cat · 05-20-2006, 09:10 PM

Mike, the thermostat is the outlet to the radiator. The inlet is the lower radiator hose that runs to the timing cover. There is no nipple on the intake for 65 and up cars. 64 and down had the nipple that ran from the front of the intake to the heater core. 65 and up engines had the nipple in the passenger side rear expansion plug hole on the head. The mysterious hole next to the thermostat is where the intake meets up with the timing cover and is sealed with a rubber washer that looks like a garden hose washer. You better check your engine to see if it's a 65. Sound like you may have a 64 enigne, or your 65 block has 64 heads and intake on it. And, the 65 intake will not bolt up to 64 and down heads. Got a picture of your engine to post?

Carl A · 05-20-2006, 09:22 PM

Heres the mystery hole mount from front.The 3-4" long bolt to left of filter

mikediaz · 05-21-2006, 12:57 PM

Well here's the story:

I read this thread's posts yesterday night at around 11'ish. I was so worked up thinking I may not have the 'correct' parts under the hood that I got out of bed and went outside to check out what I had.

My 4bbl manifold has the nipple on it.
This means it must be a pre-65 manifold which means I must have pre-65 heads.

So at this point I was like ok.. well who knows maybe during a prior owner's engine rebuild his 65 heads were bad and 64 heads were on hand and voila... right...?? Right?!

Well. this morning I had to drive back to Blacksburg to get ready for a month of Summer classes here at VT. I figured I'd get some rest for the trip ahead of me in the morning.

Woke up this morning, said my goodbyes to the family and on my way I was.
Side story: I got a ticket for speeding on the 4-hr drive in the '65 bonnie over here... I wasn't happy getting my first ticket but I suppose it happens and I should be more careful next time.

Ok so I get to B'burg. All the while I'm thinking... well I'm pretty sure I have a turbo 400 transmission which started shipping on the ponchos in '65 so .. hopefully they kept the engine block that came with it too and just switched the heads.

So, having arrived at my destination, I pop up the hood and check out the engine block casting number:

27P
381313

I didn't know at the moment that it was '64 engine code but I did know enough to tell it wasn't a 65 block ( i learned it was a 64 engine code a few minutes later when i went inside for internet access)..

So it's a 64 389 auto block. 303 hp.
I ran the carb ID tag # too.
3651 S
Which decodes to a 1964 421 cu. in. auto block's carb...

I'm not terribly surprised that the 421 carb works with the '64 389 block. They probably rejetted correctly.. not sure if they changed the 'correct' 64 389 venturi clusters in the carb but oh well..
Last night I was worried that it might not be a 65 block
This morning I discovered it wasn't a 65 block.

Went through the usual range of emotions.. mad.. disappointed ... but not for too long though.

This could all be a good thing because:
#1 - My intent has always been to build a just-above stock '65 421 tri power engine and drop it in. The fact that I do not have a '65 389 in there now, I am even more anxious to get the 421 to put in there. Maybe this incident will help speed me up.

#2 - I thought the car had plenty of power already, and now that I know that was with the 303hp engine and not the assumed 325hp (1965) engine, I'll be getting an even bigger power boost out of 421 (when i get it in there) than I had thought.

I know there are lots of negatives to the situation but why waist time and energy focusing on things like I don't have a #s matching engine like I thought I did... or I overpaid for the car since I assumed it was #s matching...
Afterall- I did not ever plan on selling the car, and I did plan on changing the engine.

This post may have been more to help myself get over today's newly found information.. sorry if I bored anyone and thanks all for your help and any support you may give. It's still a hell of a car!

Carl A · 03:01 PM

So you have a great running 389, that your not afraid to take a 4 hr run,and you have a rebuilt tri setup, seems to me all you really need is a 64 tri manifold. http://cgi.ebay.com/ebaymotors/GM-PO...40324984QQrdZ1
and another( No carbs). http://cgi.ebay.com/ebaymotors/1961-...QQcmdZViewItem

mikediaz · 05-21-2006, 03:20 PM

That's a good way to look at it carl!

thx
I do think I'll save the tri-power setup for the '65 421. Just gotta get that project off the ground with a block. Holler if anyone hears of a good one for sale!

Thx all
mike

mikediaz · 05-21-2006, 09:53 PM

p.s. the trans is a turbo 400 <insert smily where the smiley wipes the sweat offf his forehead in 'phew' mannerism> ;P

Carl A · 05-21-2006, 11:10 PM

Well now for another wrench in the gears,I'm not sure but if your block is a 64 and the tranny is a 400 (65) dont you have starter mounting problem, whats the date on the block it might be a late 64 so could be a 65

Norwegian Bonneville65 · 02:20 PM

Quote:

Originally Posted by Carl A

Well now for another wrench in the gears,I'm not sure but if your block is a 64 and the tranny is a 400 (65) dont you have starter mounting problem, whats the date on the block it might be a late 64 so could be a 65

Well,Mike how about that,Our cars even have the same type of engine ??

I too have a 303 HP 389"
(Code 26K,Block " 9773155)from 1964 in my Bonneville !!
My TRI-Power intake is from 1963 (# 9770275)
I also have a TH 400 transmission.
From what I have heard,the 1964 Auto cars had block mounted starters,while the manual cars did not.
Please correct me anyone if I am waay off here,guys,I am still learning

Stig

mikediaz · 05-23-2006, 08:38 AM

Where do I check the date on the block? I know I had teh web page loaded up earlier that said where so I'll look it up and post here.
The starter is mounted down on the driver's side of the engine block all the way on the bottom. I'll get that date code.
Although I'm not holding my breath for a magically late 1964 engine on my '65 car... That'd be interesting but my PHS docs stated my block should be a certain code (WX? maybe? whatever the standard 389 for 65 auto trans bonnies was supposed to be).

I"ll check it out though. Thanks for tips and suggestions and encouragements!

6T5 Cat · 05-23-2006, 12:22 PM

Mike, the block date code is next to where the distributor is mounted.

Norwegian Bonneville65 · 05-23-2006, 02:53 PM

Quote:

Originally Posted by mikediaz

Where do I check the date on the block? I know I had teh web page loaded up earlier that said where so I'll look it up and post here.
The starter is mounted down on the driver's side of the engine block all the way on the bottom. I'll get that date code.
Although I'm not holding my breath for a magically late 1964 engine on my '65 car... That'd be interesting but my PHS docs stated my block should be a certain code (WX? maybe? whatever the standard 389 for 65 auto trans bonnies was supposed to be).

I"ll check it out though. Thanks for tips and suggestions and encouragements!

Hey there,Mike.

According to my partnumber source :
http://www.teufert.net/pontiac/page2.htm (Go to engine codes)
Your engine is a `64 389",303HP,4bbl,Auto.
The original engine for my(and Yours??) would be a code YF

BTW...what we both would want,is the YK...or the WJ....

Enjoy Your great looking Bonnie,Mike! Summer is here

Stig

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