Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

[Domenic T.]

Cant get to my shop as I am stuck recovering from a hip joint replacement and can't find where to get new ones.
Going crazy and want to order new diaphrams for my end carbs, but have to stay at home.
The rubber on the new diaphrams (never started) crumpled and I need to order them, but can't get to the car for a while and would like to have them ordered.
Just started the new engine I rebuilt just before the operation after the car sat in the shop for a about 6 years with newly rebuilt carbs. Broke in cam and runs great, but sucked on vac lines going to end carbs before the operation and noticed that I could suck and no movement ot resistance. just like a empty straw.
Funny, ALL the new rubber except the tires rotted before I started the car after a frame up restoration. Now the rubber in the carbs that never saw fuel!
Even opened the new shifting boot and it was already cracked. Now the carbs.
Can you guys save me a bit of time and give me a head start on getting them?

Dom

[Richard M.]

Re: Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

Dom, I don't have the Holley part#(EDIT-yes I do, see below) but I just did a quick check on Zip's website and found them.
It states made in USA so hopefully better than what you had on there. Click on link below.

Zip CZ-721 In stock. $49.99 each.

Rich
PS they have free shipping today if over $149.

cz-721.jpg

EDIT- Found the Holley # 135-6
135-6_03.jpg

[Mark M.]

Re: Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

Holley 135-6. Sold by many. My you have a speedy recovery.

[Gary B.]

Re: Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

[Patrick B.]

[Richard M.]

Re: Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

Good catch Patrick. They may be fine.

Dom the venturi hole is very small, iirc along the inside of the throat.

Edit- Dom see this Post for photos of the venturi hole you have to tape off to test vacuum. Hard to see from the top. It's just below the circular cast line.

Note view is upside down.
PA100067.jpg

Rich

[Domenic T.]

Re: Stuck at home and can't get to shop for part #'s on 69 435 HP end carb diaphrams

Guys,
Knew you would come thru with good advice. I did give the engine full throttle and it only opened to the limits of the mechanical. But maybe that's why I had full mechanical on my 409 with Rochesters! Might be that there is a lag with the vacuum system?
Going to get the walker and a ride to the shop Tuesday and I will try all the good advice first, then take it apart and take a look at it.
Confession: I bought my vette (67)in 1971. I worked as a Chevy mechanic and the 67 came thru as a total with the 435 in it and headers and so forth.
Well I ended racing with the 409 and you would think i would be in heaven, but besides changing all the failed 396/427 cams, lifters, and pushrods I drove a 327 in a Chevy II from the repair lot to my stall and was amazed at the performance. SO, I installed a 365 HP 327, SB hood of a 66 and weaker front springs and was happy till I hooked up with you guys.
Body came off the frame and the BB went back in. My carbs are 69 because we did a lot of trading back then and I got a great set from a friend that I think just wanted a 4 barrel, and the ones I got were in much better shape than the 67's. Didn't know down the line that I would go to all original.
I will say that the BB will have to live up to that snappy SB.