LOOKING FOR 65 BUICK 300 CI HEADERS

[RICK YOUNG]

Can't seem to find headers for a 65 300 CI.

 

Or does a 68 350 have same bolt pattern

[EmTee]

There may not be any available for that engine.  I'm not sure they'd be much help anyway, as headers really require complementary upgrades to the top-end (i.e., carb, intake & heads) to reap a benefit.  Even with that, those changes typically wind-up increasing HP at higher RPMs.  What the engine really was designed for was low-end torque and economy.  I'd suggest leaving the stock manifolds and adding a low-restriction dual exhaust system.

[RICK YOUNG]

I'm putting it in a 23 roadster.

The 300 is balance/blueprinted and upped to a 340 cam/pistons.

 

I have nice cast exhaust for sale

[EmTee]

OK, now I understand.  That said, you may need to look into custom headers as you're probably not going to find any off-the-shelf for that engine.

[Ben Bruce aka First Born]

20 hours ago, RICK YOUNG said:

I'm putting it in a 23 roadster.

The 300 is balance/blueprinted and upped to a 340 cam/pistons.

 

I have nice cast exhaust for sale

 

 Rick, go over to the dark side!   Some on the H.A.M.B. will know someone in your area that can build them. Many H.A.M.B. members in your area.

 

  Ben

[Aaron65]

The 300 uses a different exhaust pattern from the 350.  I don't think anyone still makes headers for the 300; Poston used to make them years ago.  You may want to check over at V8Buick.com to see if anyone has a set they'd be willing to sell.