Dimensions of intake hole in head 80, 820, 830

Rwolfejr

Member
Hi,
Was wondering if anyone out there has an 80, 820, 830 head with the intake off or the head off where they could get a measurement of the rectangular intake hole for me. Or an intake gasket laying around would be close?

Eyeballing a couple pictures of mine I have it looks to be around 3" wide x 2 deep, with maybe around 1/2" radii (one inch circle) at the corners. But I'm going to need something more accurate than my guess. Also if you're at it anyway let me know how big the hole is when it turns round... the I.D. of the hose or the round inlet into the air cleaner where it drops into the intake.

I'm not ready to pull the tarp on mine just yet but wanted to start looking into a intake modification I'm gonna make this spring. Not a big deal or any big hurry just getting a little anxious and thought maybe somebody had a head laying around they could measure for me if they had a chance.

Thanks,
Bob

15619.jpg
 
got an 820 head on my bench and measured it last night. it was 2 and an eighth by three an eighth if I remember right. should have writen this last night before sleeping. will measure it again. Later John
 
Thanks John.

With the radius at the corners that'd make the hole about = to a 3.25 Inside diameter. Which makes sense I suppose since I'm pretty sure the intake pipe I.D. is 3"

Thanks again... I need to give this some more thought. Guess worst case... If what I have in mind doesn't help, I can put things back to the way they are now.
 

I got a spare 830 head if you need. It was cracked, but repaired. It would maybe work as a prototype for you. Lemme know if it interests you.

Adrian
 

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