305 heads on a 350
G3GM :: G3 Tech :: Engine & Driveline
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Re: 305 heads on a 350
Edelbrock sells a bracket w/ provisions for the kickdown, throttle & cruise in a 2 piece bracket. I am mickey mousing mine for now because I do not have cruise and think the provision for that would look like crap on mine. In my case I believe I can bend the bracket to fit the bolt holes as they are close. Might also be able to cut some away to adapt it. Also, you can not re-use the factory engine lifter brackets any more...at least I can't because the one up front where the throttle return spring hooks into (on the cast iron intake) are recessed and the Edel 2116 are not, plus the holes are not lined up the same, so I may shave a bit off & reuse the little one from the back of the old intake to get by until I can have one made. I'm still putting all the stuff back on to fire it up but rain is coming so i will be delayed...as i have no garage.
I posted some pics of what they look like a while back "dry-fit" on the car.
http://www.g3gm.com/t4500p15-1977-chevelle-malibu-classic-progress-photo-s-aka-mali See page 2.
I posted some pics of what they look like a while back "dry-fit" on the car.
http://www.g3gm.com/t4500p15-1977-chevelle-malibu-classic-progress-photo-s-aka-mali See page 2.

77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
I figure I am going to just take the one I have and cut the bottom off and just weld a new bottom on it that fits the bolt holes on vortec manifold it wasnt the stock bracket anyway. Its the steel one Edlebrock sells. What about your plug wires ? I am using the center bolt valve covers. How are you retaining them? The regular retainers have no place to bolt to.

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
I have pretty thick insulated plug wires & they have "socks" on the ends where they snap into the plugs. I'm not 100% sure but I think there are retainers avail that go under the center bolts.

77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
Yeah I looked today they do make a retainer for that. There is also those little holes on the sides of the heads.Im going to see if I can use them, they are threaded.

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
Try Moroso part # 72143 for the wire looms I bought them and they work great .
http://www.moroso.com/catalog/categorydisplay.asp?catcode=40009
http://www.moroso.com/catalog/categorydisplay.asp?catcode=40009

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
What re-seller did you use? These look great.

77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
Summit racing. I just started the car up tonight. it started freakin raining just as I backed it out of the garage.The weekend looks nice though so we will see how it goes.

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
What heads & manifold set up did you use? Do you still have the cross breather type or did you eliminate it? I found some brackets online, gonna check out @ auto zone from Spectre they are normally a stock item. $20 for the TB bracket (bolts to carb stud & tightens via allen wrench to the side of the plate) & cheap money for the return spring bracket here's a link for that & pic of the TB set up http://www.spectreperformance.com/#CATALOG.4708



77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
I used the GM heads and the Edlebrock manifold (Performer).I got the whole set up from Scoggin Dickey bolts gaskets and all.My buddy uses that bracket on his truck Its a little flimsy but he got it to work you are going to have to mess with it. On another note I took the car out tonight for the first time it pulls really good.Better that the old Camel hump heads I had on there and Its not all dialed in yet, BUUUT snow tomorrow, so I may not be able to use it for a while

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
I ended up buying the return spring bracket. Had to bend it a little but worked out good. Don't know what I'm doing yet w/ the throttle body & kick down yet. I agree the other was a bit flimsy so may end up using mine and making some bends to fit. problem is w/ my Edel 2116, the middle drivers side bolts are not used to bolt to the cylinder heads. I suppose they are there for the bracket but it does not line up well so I have to adapt it to be used towards the rear of the intake. I just don't like the look of the Edelbrock bracket. Maybe I can find another but for now what I have will do. Glad to hear you took it for a spin! Noticeable difference, huh? Snow is coming here too 3-6" *&@^%! But I am headed out to work on the car anyway!

77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
They make some nice brackets that they sell in Summit but they are about 100 bucks but are aluminum and will probably work like a champ. See what I didi was use the Edlebrock bracket for a regular manifold and then cut off the bottom and made a new bottom out of plate and welded it on to the bracket, worked good it seems. Yeah I had it second and it was pulling like crazy I was about to shift but came up on the guy in front of me too fast.

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
I got in the right side header, plugs, starter, etc before it began to rain hard but was almost there...sheesh! Got me a nice air cleaner too! Can't wait to fire the old girl up & just hear the difference. Then must bleed brakes before she'll drive.

77mali- 2012 Donating Member

- Street Cred: 14
Re: 305 heads on a 350
Sorry I couldnt get back to you we had no power due the freak snow storm.
What rockers are you using?
What rockers are you using?

ant7377- G3GM Senior Member

- Street Cred: 12
Re: 305 heads on a 350
Comp Cams Magnum Rockers. These are flat tappet shape w/ Roller. Got the car started but some back-fires cut the warm up short. Either the dist rotor is in wrong or wires....no fire in #2,4,6. Have to check what's going on. Sorry to hear about your loss of power. That stinks.

77mali- 2012 Donating Member

- Street Cred: 14
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