450 or 600?

62 wood wrote: 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?

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??

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.

Pete, doesn't your big manual from marineengines.com have great diagrams? Mine does, I could try to fax them to you.

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......

8122pbrainard wrote: 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 lie Reids??

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.

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!!

8122pbrainard wrote: parts fall out of holes.

Sometimes they even have springs behind them. Then they land behind something that hasn't moved in 20 years.

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.......   

62 wood wrote: boat dr wrote: 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.......    Paying someone aint the problem.. I just cant find no one to work for $3.35/hr. BTW, I HAVE seen the inside of a YH (too many times) thats why the 4bbl

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!!

boat dr wrote: 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.............

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?

Funny Stuff!

What about the good friend that drops a few spare parts in the baggie of your marked parts.

Tom

BuffaloBFN wrote: boat dr wrote: 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. It wouldn't have been much of a joke if it hadn't been Pete in the first place.

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???   

or just put a chevy in,it's like what,8 new holes to drill?

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!!!!!!