450 or 600?
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Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=23058
Printed Date: May-07-2024 at 1:30pm
Topic: 450 or 600?
Posted By: 62 wood
Subject: 450 or 600?
Date Posted: August-11-2011 at 2:13am
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Just dug the 62 Classic out of the barn. ... Been kind of thinking of replacing the twin sidedrafts with a 4bbl for the old 312 y block. Getting mixed signals on which Holley would be best? 450cfm or 600 cfm? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Replies:
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 8:10am
Well, my choice would be... twin YH's!! I'm in the process of rebuilding mine now. I do need to call Don down at Daytona Parts due to one problem. I have a left over part on both that I don't know where they came from!!! 
So, you want to cut a hole in the dog house to make the Classic look like Reids??  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
62 wood wrote:Posted By: BuffaloBFN
Date Posted: August-11-2011 at 10:04am
Priceless! ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: Riley
Date Posted: August-11-2011 at 11:42am
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Steve, from what I've read on the car sites, the smaller carbs are what people are using on cars.
We are running a 625 cfm edelbrock, however, and it runs great. New 450 Holley's are pricey! Check your valve lash as that was the biggest problem we had initially with getting ours to run good. Not to start a Holley vs AFB war, but there seems to be way less tuning with an AFB than a Holley on a Y block. People I've talked to don't like to admit that on line though, LOL. Y Blocks Forever is a great Y Block site. ------------- |
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 1:32pm
Greg, Even though I was only doing one carb at a time so I would have a reference, I found out that if you turn the carbs over to clean them, parts fall out of holes. Then the big problem is which hole did it come out of?? The other problem is the build sheet that Daytona sent with the kits doesn't show these parts!!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Riley
Date Posted: August-11-2011 at 1:41pm
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Pete, doesn't your big manual from marineengines.com have great diagrams? Mine does, I could try to fax them to you. ------------- |
Posted By: boat dr
Date Posted: August-11-2011 at 1:52pm
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Steve you are correct, these carbs are way too much for your tech skills. Please install a non correct induction system, then raise or rebuild a engine cover to really trash it out.A 2x4 looks great, nailed to the floor, no carpet needed.
As Bruce stated ,use an Edelbrock, easy to install and almost Bubba proof. ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: boat dr
Date Posted: August-11-2011 at 1:55pm
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Bruce there is a difference beiween looking at the pictures and rebuilding after a complete tear down. There are 4 versions of YH Carters, what your pic show is a "general" picture...Not enough detail for our needs...... ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: Riley
Date Posted: August-11-2011 at 1:57pm
I prefer the standard height motor box with a period correct inverted Table Talk pie plate.  ------------- |
Posted By: 62 wood
Date Posted: August-11-2011 at 2:02pm
Twin YH's!! who would have thought of that?
Actually, For the scoop, I was thinking of a pc of aluminumn furnace ductwork, all polished up! Right now, I am after something that is easy to get the boat running. I can assure you "no animals will be harmed in making this film"! / I can always change back over to the stock intake/sidedrafts later.  ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 62 wood
Date Posted: August-11-2011 at 2:05pm
I was thinking of coining up to get the treated 2x4's. That way it will match the wood tower I plan to build for it next summer! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 2:16pm
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Bruce,
Yes, my manual has the YH diagrams. Thanks for the offer. I probably should have looked at them in more detail. I did look but at first glance, they looked like the exact same as the diagram/build sheet that came from Daytona. Now I know better because I just got off the phone with Daytona and found out what the extra part is. My memory sure is going because once he told me, it came back to me. It's a spring and pin that came out of my OLD needle and seat. No longer needed with the NEW Daytona design needle and seat assembly!! So, I haven't screwed them up yet!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Riley
Date Posted: August-11-2011 at 2:23pm
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Pete, part of my memory has been replaced with zip lock sandwich bags and a sharpie. ------------- |
Posted By: BuffaloBFN
Date Posted: August-11-2011 at 2:40pm
Sometimes they even have springs behind them. Then they land behind something that hasn't moved in 20 years.
------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 2:47pm
Billy calls the parts that go flying "Jesus clips" because when it happens you say something like "Jesus ##@*@" ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: boat dr
Date Posted: August-11-2011 at 3:05pm
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How many here have ever seen the inside of a YH, much less rebuild it to factory spec's.Pete has done very well on his rebuild,one bobble aint bad.
The newer needle/seat combo will work far better than the old style. The old parts are what stumped Pete, not the rebuild. My Dad had a saying " nothing is impossible, if you do not have to do it yourself " or "have the money to pay someone else".... I wish I had Steve's money so I could afford the latter....... ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 62 wood
Date Posted: August-11-2011 at 3:17pm
Paying someone aint the problem.. I just cant find no one to work for $3.35/hr. .. Holly's website http://www.holley.com/applications/CarburetorSelector/CarbSelection.asp - Carb Selector shows 450 cfm... BTW, I HAVE seen the inside of a YH (too many times) thats why the 4bbl ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 3:25pm
Well then just order a couple of Daytona kits and go after them!! I'll bet Pam would be happy to hear the kits costing $78.00 instead of the cost of a new carb. Do you have the intake manifold?
Btw, if you're real nice to me, I may take the job on for way less than the $3.35 an hour!! However, it won't be until after Labor day when I go up and test to see how well my rebuilds went!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: boat dr
Date Posted: August-11-2011 at 3:52pm
Steve , is that not a NOS carb that you are currently using on the 6 banger now? As in, not rebuilt ,but new off the shelf? If so, and this is a new carb,refer to my statement above.............  ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 62 wood
Date Posted: August-11-2011 at 4:03pm
Yes , the 64's YH is a new off the shelf carb, but only after having 48 of them torn apart,TRYING to get ONE to work... now you want me to try and get a PAIR of them going? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: boat dr
Date Posted: August-11-2011 at 4:12pm
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Too f$^&# nking funny workman...............Boat dr ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: Clew In
Date Posted: August-11-2011 at 9:10pm
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Funny Stuff!
What about the good friend that drops a few spare parts in the baggie of your marked parts. Tom ------------- Clew In |
Posted By: BuffaloBFN
Date Posted: August-11-2011 at 9:13pm
It wouldn't have been much of a joke if it hadn't been Pete in the first place. ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: 8122pbrainard
Date Posted: August-11-2011 at 10:00pm
Greg, The "first" place category comes after my rebuild test the week before Labor Day. Currently, Billy is the BIG #1 on the YH's!! At this point, what Billy has told (helped me big time) me was and all confirmed by Daytona is the only discrepancy was Billy did not know the left over part I described. Tim at Daytona knew on the spot but, he's seen more YH's!!!!
Now, the big question is Will Steve actually go original, or go with a modified dog house and the down draft???  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Gary S
Date Posted: August-11-2011 at 11:58pm
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I would put the Holley on and tear a couple of boards off the barn to raise the motor box,by the time winter comes you'll be done with the boat and then you can put the boards back.You'll have plenty of time between leaf plowing jobs to get er dun ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: Gary S
Date Posted: August-11-2011 at 11:59pm
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or just put a chevy in,it's like what,8 new holes to drill? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: boat dr
Date Posted: August-12-2011 at 12:01am
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Pete, maybe a polished S/S adapter for a single YH on a 2 barrel truck intake. That way he can just swap carbs between the two engines.Even Steve can do that..... ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 62 wood
Date Posted: August-12-2011 at 12:47am
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if i wasnt such a intelijent man, i'd think yuo was makin fun of me and wud take ofence to them there statmunts.
btw,,,4bbl here I come!!!!!! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: August-12-2011 at 12:50am
Billy. I've already considered The SS intake And even mentioned it to Sieve. The thought was if he could supply me with a couple of those fancy SS intake tubes, I'd do the YH carb rebuilds for free!!!! BUT, it already may be too late.... I just pulled the second YH and sealed the 5 gal. can with duct tape. Steve nay need to wait a couple more months!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 62 wood
Date Posted: August-12-2011 at 12:57am
------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 62 wood
Date Posted: August-12-2011 at 1:00am
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make sure you scroll the above pic sideways!!!
you guys are just jealous! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: Riley
Date Posted: August-12-2011 at 10:02am
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Steve, sounds like you got it covered. It's just bolt ons and easy to convert if you ever want to, and the padded engine box is easy to convert as well. It's not like you are going to ruin your boat. The only down side if you convert to side drafts is getting used to the loss of power from going to 2 1 barrels from a 4 barrel. ------------- |
Posted By: 8122pbrainard
Date Posted: August-12-2011 at 10:10am
Bruce, I don't feel this is true since those YH's can handle plenty of CFM's. CFM specs are hard to come by but Craig (64X55) who has a X55, did do some reasearch on them. From a good source, he found out each will do about 225 to 250 CFM. The only advantage in my mind with a 4bbl, is you have the luxury of having the secondaries kick in when needed. Take a look at the bore size of a YH sometime - they are big!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 62 wood
Date Posted: August-12-2011 at 1:15pm
Here is a quote taken from http://www.blackhawkengr.com/ - Black Hawk Engineering . They make custom metering rods, etc for the YH. ......."""The throttle body has a 1.83" bore to fit the F flow (180 HP) turbocharger inlet bore. The Performance Trends "Engine Analyzer" simulation software predicts that the throttle body will flow 256 CFM versus 128 CFM for the original "180 HP" YH carburetor. With the boost limited to 12 PSI for longevity, Engine Analyzer predicts 193 HP net versus the 148 net HP of the stock "180 HP" system. The EFI system is able to produce better fuel economy despite generating more power. I will also manufacture smaller throttle bodies for the B-flow (150 HP) turbochargers."""... They are talking about a replacement throttle body on a turbocharged engine. The "software" predicts 256cfm vs 128cfm of the original YH carb.. ...Anyone got a hole saw big enought to cut a hole for the flame arrestor? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: boat dr
Date Posted: August-12-2011 at 2:39pm
Bruce where did you get those "FACTS", my 312 is rated at 215 HP w/2 YH Carters.How much can I gain w/4 barrels vs the twins? Do you have different HP rating with a 4 barrel or you just pulling numbers out of the AIR??? If so back them up with data, not "hear say". Now back to the story....... ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 8122pbrainard
Date Posted: August-13-2011 at 1:57pm
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Steve,
It can be done!! There really isn't anything hard about rebuilding YH's!! The trick will be getting them back on the engine and seeing if any tweaking is needed. By now, you should be a "master tweaker" of the YH's!! Yes, there were a few extra parts left over in the kit but that's what makes a good mechanic - making it work with missing parts!! Actually, after talking with Daytona, the YH kits are universal covering all 4 generations of the carb so, some of the parts in the kits aren't used on all of the models. They sure did throw in the extra gaskets though!!
I'm just trying to keep you from cutting a hole in the top of that dog house!!! There is nothing wrong with the YH carbs!!! 
 ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 8122pbrainard
Date Posted: August-13-2011 at 2:40pm
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Steve,
You mentioned using an aluminum HVAC part and polishing it to mount on the top of the dog house. I just checked McMaster and they have this one available up to a 12" diameter. Cool looking!! Go for it!! And, the 12" is only $32.00. You could probably even find one at Menards cheaper!! 
Then, you need an angle ring and some drywall screws and the job would be done!!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 62 wood
Date Posted: August-13-2011 at 3:27pm
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Pete,
I was thinking more of a pc of furnace plenum, lay it down on top of the doghouse and cut the front out for forced air induction ... ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: August-13-2011 at 3:36pm
Ok, got it!! Hey, get a floor sweep and mount it upside down. Take the door off it and put a length of ducting on it so the top scoop area is over the windshield and wow, you'd get plenty of forced air induction. You could even do some foam gasketing around the flame arrestor to force the air directly into the carb.
 ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: boat dr
Date Posted: August-13-2011 at 3:42pm
Pete we should be able to pull this off, but it seemed "SO SIMPLE" at the start.Steve and I may start swapping boxes via UPS.One mans trash is anothers treasure ????? I vote for a Pro Stock auto scoop  ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 62 wood
Date Posted: August-13-2011 at 5:01pm
Actually I think its more like .. "One mans treasure is another mans even more desirable treasure!" ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: August-13-2011 at 5:42pm
Steve, We are both very lucky that we have Billy around!!
So, it sounds like I can't talk you out of going non original!!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 8122pbrainard
Date Posted: August-13-2011 at 6:04pm
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Steve,
I feel you may need to change your screen name to something like "Mr. non original Velcro guy" !! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Riley
Date Posted: August-13-2011 at 11:05pm
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Carbs look good painted up Pete.
Steve, Ram Air like the GTOs had, I like it! That ought to really boost the hp. ------------- |
Posted By: peter1234
Date Posted: August-13-2011 at 11:35pm
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if its just about getting it running and getting the bugs out try borrowing a good working one.. we used to pass around a good working holley two barrel to each other when we had a new motor or project . it was always a known factor that we couldnt really blame the carb.. gave us time to play with valves or timing or whatever ------------- former skylark owner now a formula but I cant let this place go |
Posted By: boat dr
Date Posted: August-14-2011 at 12:22am
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Steve , so far I gotta a good 4160, fuel pump, thermostat cover...Boxed up........... Whattcha got that I need ?? ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 8122pbrainard
Date Posted: August-14-2011 at 10:23am
Well, I just finished opening up the two YH's again. I forgot to check the metering rod height which is one of the rebuild procedures.  They both checked out fine but it sure would have been a problem if they were wrong.
Steve, That NOS YH you got, do you happen to know what "generation" it is? The improvements from gen 1 to gen 4 really improved the YH performance and reliability. I have the gen 4's and keep in mind, mine haven't been opened up since I got the boat (about 1981) and then it was for just a float height adjustment. The really big improvement is the design of Daytona's own needle and seat for the float/fuel level. They make their own for most of their carb kits. It's not even a needle in a seat but a flat face Viton seal (the "needle") that seals off on a convex seat. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Riley
Date Posted: August-15-2011 at 12:12am
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Steve, I see you haven't installed your intake. Both the side draft and down draft I've seen have an exhaust crossover. I am re installing ours with the truck gaskets which have a plate with a small hole in it rather than the open port. Its supposed to keep it from getting as hot as the open port. ------------- |
Posted By: 8122pbrainard
Date Posted: September-07-2011 at 5:52pm
Two rebuilt YH's on the 312. Steve, there really isn't anything different about rebuilding a YH compared to other carbs. I did have to open them up and adjust the float level.
 ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: BuffaloBFN
Date Posted: September-07-2011 at 9:15pm
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I spy a donut? Tsk tsk. ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: 8122pbrainard
Date Posted: September-07-2011 at 9:18pm
When I made the new prop shaft, it somehow came out and inch short!! So, it was an easy solution instead of getting another chunk of stainless and starting over!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 62 wood
Date Posted: September-08-2011 at 2:07am
So Pete, how do they work? Where did you end up with the floats? btw, I just got my 4bbl intake sandblasted... ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier 62 Classic.. 73 Ski Nautique |
Posted By: 8122pbrainard
Date Posted: September-08-2011 at 8:19am
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Steve,
The book calls for 9/16 in forward and 7/16 aft. I ended up with 5/8 forward and 1/2 aft. There is also a metering rod adjustment. I set it per the rebuild instructions. Did you ever check it? I didn't put much time on it and will go back at it come spring. I still may need to adjust the metering rods but want to pull some plugs to see how the mixture is. There's no backfiring so I feel it's still running slightly rich. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |