Intake manifolds 212 / 420

[Lincoln Street]

Using a 420 for motorcycle build; have seen many curved intake manifolds, to relocate carbs on 212 and others, around and behind the valve cover. Will these 212 manifolds (or some other) bolt up to my 420, to locate carb and KN style air cleaner behind the engine, keeping it within chassis? Thanks!

 

[Denny]

No! Make your own to fit.

 

[Sparkwizard]

Custom parts for custom applications are generally not available online. As stated above, you may have to DIY.
GX390 parts might get you in the ball park. I have been known to cut up old chrome shopping carts and weld the curves together to make custom intake and exhaust pipes. That may be an option, assuming you have welding equipment.

 

[Master Hack]

Or you could just go to Wally World!

 

[Lincoln Street]

Custom parts for custom applications are generally not available online. As stated above, you may have to DIY.
GX390 parts might get you in the ball park. I have been known to cut up old chrome shopping carts and weld the curves together to make custom intake and exhaust pipes. That may be an option, assuming you have welding equipment.

Basic question is; the carb mount bolt pattern is 2.115” O/C, on the 420. The intake port is <> 1.25”, and the bolts are not directly opposite each other…what are these dimensions on the 212? I can build whatever, just looking for existing first! Thanks.

 

[Sparkwizard]

Compare the gaskets.

 

[bullseye670]

Here is what I used. Amazon.

• 

Roll over image to zoom in

Ask Rufus​

Can it handle extreme temperatures? Is it suitable for boost applications? Does it come with clamps? Ask something else

45 Degree 4-Ply Thickness 5mm Silicone Hose Clamp for Turbo/Intercooler/Intake Piping Black Color (ID: 1.0"(25mm), black)​