64-67 Buick 300 exhaut manifolds. On an Olds 215?

[hoffbug]

Does anyone know if the 64-67 Buick 300 exhaust manifolds will work on an Olds 215?  Is there any weird angles, plug intefearance, or other issues?

[mgb260]

They will bolt up to the motor but you may have firewall clearance issues.

[hoffbug]

OK. This would be going tinto a Vega.

[roverman]

IME, They always dump/fit better. Less prone to cracking, flow better = win/win.  roverman.

[MGBV8]

Buick 300 exhaust manifolds on Olds 215 heads?  I have a set of Buick 215 exhaust manifolds you can have if they will help.

[hoffbug]

Thanks Carl... I have a set of 300 manifolds but they are in storage right now...Just wont be able to get to them for a while.

 Were the 64 300 manifolds different than the 65-67 manifolds? I know the heads are different.

After years of collecting parts and dust Ive finally come to the point I need to do something with the Vega?Astre project and all the parts Ive collected,  or just sell it all....

The stroker engine would have to be put on hold... I have a bone stock Olds 215 I could rebuild and get all the running gear sorted out and this thing ruuning and road worthy... Then I could always install the stroker down the road .

[mgb260]

Tony, This old Phil Baker article shows the 300 exhaust manifolds compared to 215. Phil said they dump better for the Vega. Lots of other info in the article.

http://www.teambuick.com/reference/library/affordable_aluminum_v-8.php

[hoffbug]

I have the article. I had spoken with Phil a few times in the past...Just a really nice guy.

  I just wasnt sure of the Olds heads in Particular... They are layed out a little different than the Buick heads.

[joe_padavano]

"I just wasnt sure of the Olds heads in Particular... They are layed out a little different than the Buick heads."

The intake and exhaust flanges on the Olds and Buick heads are exactly the same.

[Moderator]

Exhaust port and bolt layout are the same for all 215s, but spark plug location and angle vary between Olds and Buick. I don't know if spark plug clearance might effect fitment of 300 heads on an Olds 215.

[BlownMGB-V8]

The flange location between the Olds and Buick 215 is slightly different but the same headers will fit. Just makes a slight difference in body clearance.

Jim

[hoffbug]

What about spark plug access?

[BlownMGB-V8]

You may have to cut away the straps between the ports on the header flanges.

Jim

[hoffbug]

But the stock cast iron 64 -67 manifold don't present any plug access issues on Olds heads?