I have not been on here in a long time but trying to get back to car. Won't go into all the details, but found I had one cylinder with no compression and pulled the heads. Found a leaking exhaust valve and took them to a machine shop. They cleaned them up and just called to tell me both are cracked .

Anyone have replacement #5 heads available? Willing to consider #6 or #7a if i have to. Cores or complete, let me know.

 

Dane, I have some #3's. From what I understand they are as good as 5's.
Let me know if you can use them.

 

Thanks Adam and that could be an option. PM me the price.

 

On those 3's, just make sure you take a beveled drill bit and hit the pushrod holes. They're made for the 45 degree cam and get danger close to pushrods when using them on a later engine. Otherwise, stick a big valve in 'em and they'll be just fine with smaller combustion chambers.

 

Dan Mascal or Dr Dan on ROP is selling #5 heads on Real Olds Power. He is a stand up guy, pretty sure I bought my 403 T/A mounts off him for the Olds 4x4. He was GM mechanic for years, helped me online by sharing his knowledge and a successful Olds racer. He is from Florida. The #3 heads will work, as said may need clearancing and will boost compression over a set of untouched #5, 6 or 7 heads.

 

I have some 7 or 7a heads off my running when removed 72 350 but I'm in mass so shipping will be more than someone closer PM w interest

 

I have several sets of #5 heads. I can provide them as cores or ready to bolt on, including opening up bolt holes to 1/2" for late model blocks. Email me direct: drolds1@bellsouth.net. Thanks, Bob.

 

Thanks for all the leads and I'm following up on several. I may have more specific questions on what to tell the machine shop if I go with the #3's.

 

Dane:
I have a set of #7 cores off a '71 Supreme and a set of 7a (with valves) off a '72 Supreme. The 7a heads came off a running engine but they have been in my garage for 4-5 years so probably worth freshening up at the least. I'm in Houston so logistics shouldn't be too difficult.

Rodney

 

Pair of #5 heads on the engine, U-Pull-It in Albuquerque. Two barrel engine.

 

Working with ROCKETMAN269V on some #5's, will update as it works out.

 

Thought I should post an update, better late than never. I did get some #5 heads from Bob and had his shop rebuild them so they were ready to bolt on. Fastenal took longer than expected to deliver and I took longer than expected to install, but they are on and the car is running well again. Thanks for all the leads and found lots of tips on re-assembly by searching old posts and from Bob himself. Been a long time since I have been this deep into an engine and it really went pretty smoothly. This is a great forum and resource.

 

Glad I could help.

 

4 heads are also just as good