Help with Olds 307 Project

[Olds 307 and 403]

What cfm is the Holley carb? It will probably be way rich as is and the square to spread bore adapter as mentioned. He will need stock replacement pushrods for a 85 to 90 Olds 307 Vin Y. They are different as that motor has the taller roller lifters. Surprised a flat tappet doesn't go flat using the roller lifters.

 

[yitzac1990]

this is what I saved on ebay for now...yay or nay?

https://rover.ebay.com/rover/1/711-...0001&campid=5338393046&icep_item=333694387161

How much would you want for the headers shipped to 35811?

 

[yitzac1990]

i have no idea what the CFM of the carb is...

I believe the push rods that i had help finding were about 7.7" long....does this sound right?

 

[Olds 307 and 403]

Distributor should work fine, be aggressive with the timing. A 600 cfm is plenty big for that 307. The push rods sound right. My regular, no roller cam push rods are just over 8" long. I believe there is about a 1/2" difference between the two.

 

[Olds 307 and 403]

What about the 58070 part number? They seem to be the same, just un-coated...

Yes. Quite often there is something like -1 added to the part number for ceramic, this has an actual different part number.

 

[yitzac1990]

and the square to spread bore adapter as mentioned

Can you give me a part number for the correct adapter? Would the Mr Gasket 1932 work? It will be going on an A5 manifold that I can hopefully grab from Rocketman!

Mr. Gasket 1932 Mr. Gasket Carburetor Adapter Kits | Summit Racing

Free Shipping - Mr. Gasket Carburetor Adapter Kits with qualifying orders of $109. Shop Carburetor Adapters at Summit Racing.

www.summitracing.com

 

[Rocketman269V]

I have the adapter; just have to see if I have all of the hardware/gaskets. Let me check. Thanks, Bob.

 

[Olds 307 and 403]

Yes, that Mr Gasket adapter will work.

 

[yitzac1990]

I may also have a cheap set of used G-body headers that will work for you.

Hey bud, could you PM me some pics and a price on these please?

 

[Rocketman269V]

I still have not located them.

 

[yitzac1990]

Let me know if you are able to please