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#21
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The holes are the same size. All the water holes on the head intake surface, two front two rear are the same. Now how long have you been working on Pontiacs?
Robert Williams
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"Three may keep a secret, if two are dead" ~ Benjamin Franklin ~ |
#22
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Robert Williams:
The holes are the same size. All the water holes on the head intake surface, two front two rear are the same. Now how long have you been working on Pontiacs? Robert Williams<HR></BLOCKQUOTE> Been working on Pontiacs for a while. But haven't on a 301. I thought they were the same. Did some looking and read and was told they were not the same. So, I called Year One. The dimensions they gave me were different. After your post I checked again. They show a 1.19 for the 301 and 1.89 for the non 301. When I heard that a second time it didn't click. There is no way the non 301 is that big. Did a little more digging and looks like they are the same. Which works for me. I'll hunt around for a less a cpl for my #62 heads. Will make the routing of the cooling lines much easier. Thanks for making me look some more. Honest dad, that 455 on the side of the block is a serial number [img]/infopop/emoticons/icon_smile.gif[/img]
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67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
#23
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One of my friends is running RA-4 heads on his T-A. He has the 301" 90 degree heater nipple on the back of both heads and the water lines run from the nipples on the back of the heads to the water crossover on the front of the engine.
Robert Williams
__________________
"Three may keep a secret, if two are dead" ~ Benjamin Franklin ~ |
#24
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Robert Williams:
One of my friends is running RA-4 heads on his T-A. He has the 301" 90 degree heater nipple on the back of both heads and the water lines run from the nipples on the back of the heads to the water crossover on the front of the engine. Robert Williams<HR></BLOCKQUOTE> Good to know. You have mad my life a little easier. But, I'm sure something else will come along and screw it up ... [img]/infopop/emoticons/icon_biggrin.gif[/img] Honest dad, that 455 on the side of the block is a serial number [img]/infopop/emoticons/icon_smile.gif[/img]
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67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
#25
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Well, I got the car back on the road today. Impressions:
1. The flow through the radiator is GREATLY increased. Probably close to 2x as much flow. 2. The car ran about 20 degrees cooler than usual. There's a hill near my house, and the car would always go up over 200 degrees when running up it. Today, it got to 185. 3. Unfortunately, after heat soaking the car, and doing a couple of three gear WOT passes, it still ran around 205 degrees. This is still about a 15 degree improvement over what it did previously. Next step is to get a smaller water pump pulley. I'm beginning to believe, however, that I just need a bigger radiator. I'm going to drive the car to work tomorrow (30+ miles each way), so we'll see how it does. |
#26
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not to sound stupid but what is the purposs of doing this?
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#27
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by jcs64:
not to sound stupid but what is the purposs of doing this?<HR></BLOCKQUOTE> purpose is to lower the water temp about 10-20 degrees. Honest dad, that 455 on the side of the block is a serial number [img]/infopop/emoticons/icon_smile.gif[/img]
__________________
67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
#28
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I think that really looks good.
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#29
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Nice work John..
That Unilite looks familiar. Did I sell that to you about 4 years ago? GURU: One who knows more jargon than you Scott Schering 70 Firebird 455 12.34 @ 108.2 Http://www.pontiacs.org
__________________
William's Law-- There is no mechanical problem so difficult that it cannot be solved by brute strength and ignorance. Scott Schering Http://www.pontiacs.org |
#30
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by sscherin:
That Unilite looks familiar. Did I sell that to you about 4 years ago? <HR></BLOCKQUOTE> Sure did It finally died a couple of months ago, though... the shaft got enough end play in it that the advance mechanism ground itself to pieces on the support plate for the unilite sensor. It got replaced by a MSD billet distributor (they were about the same price new). It figures, because it died about a month after I bought the Mallory advance adjustment kit. |
#31
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Oh man I'm sorry it broke.. I hope ya got some good use out of it.
GURU: One who knows more jargon than you Scott Schering 70 Firebird 455 12.34 @ 108.2 Http://www.pontiacs.org
__________________
William's Law-- There is no mechanical problem so difficult that it cannot be solved by brute strength and ignorance. Scott Schering Http://www.pontiacs.org |
#32
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by sscherin:
Oh man I'm sorry it broke.. I hope ya got some good use out of it.<HR></BLOCKQUOTE> It didn't break... it just wore out. I got a LOT of use out of it--put in the car in late '98, drove all the way across the country with it, ran 12's with it. I definately got my money's worth. |
#33
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Oh god don't remind me about 98..
Great year job wise.. horrible in other respects.. You know the story John GURU: One who knows more jargon than you Scott Schering 70 Firebird 455 12.34 @ 108.2 Http://www.pontiacs.org
__________________
William's Law-- There is no mechanical problem so difficult that it cannot be solved by brute strength and ignorance. Scott Schering Http://www.pontiacs.org |
#34
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I wanted to keep mine under the manifold. It is a Victor, so there is reasonable room underneath it. Below are a couple of pictures of it.
http://www.jimspontiac.homestead.com/Index.html |
#35
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#36
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#37
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How big (Dash number) are your lines and fittings,
Jim? Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#38
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Tom you beat me to that question
and where is it plummed into? the Intake or the Timing cover. |
#39
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It has been so long since I did it that I don't remember the size for sure. I think it is #12. The line goes into the backside of the manifold water cross over. We welded a pyramid onto it to assure there was enough meat for a threaded fitting. I already had a nipple welded onto the front of what used to be the PCV hole in the valley cover so I could install a rubber hose to a breather. That blocked the path to the passenger side of the manifold cross over.
http://www.jimspontiac.homestead.com/Index.html |
#40
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If they are not #12, then they are #10. It seems to me that I was going to run a #10 from each side and then "T" into a #12, but I might have ended up with all #12. I will have to check to be certain of what I ended up doing. I do remember that the fittings and the hose were pretty expensive. I originally did It out of rubber hose and plastic fittings to the front cover, but I didn’t like how it looked or how the water would circulate.
http://www.jimspontiac.homestead.com/Index.html |
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