DIY head porting

[maldotcom2]

Oh right ok. I didnt notice that groove on my V6 heads. Back to square one i guess.

 

[greenfoam]

Yeah it's a bit of a 5 litre special that grove. You really don't need to touch the face of the port at all, it's not any kind of restriction.

Have a read of these pages

Porting School #5 Identifying Primary Restrictions - GoFastNews.com - All Racing News All the Time!

 

[Matt_vp]

Yeah it's a bit of a 5 litre special that grove. You really don't need to touch the face of the port at all, it's not any kind of restriction.

Have a read of these pages

Porting School #5 Identifying Primary Restrictions - GoFastNews.com - All Racing News All the Time!

Great link thanks for more helpful info.
Matt.

 

[maldotcom2]

Awesome info, thanks. Those diagrams are just what i needed.

 

[gavb90]

mate no offence but if you dont no what your looking at there you obviosly dont no much about porting so i wouldant evan attempt it because if you go to far you will hit the water jackets or go realy close to it then your heads are stuffed

Ok, so you've rekindled my interest in this. I understand the principle of port/gasket matching and grinding the bosses down, but with the port matching how far down do you feather the grind?

Also, in reguards to the actual port i've got a question. Hope you don't mind but i pinched one of your photos greenfoam so i could illustrate what i mean.

So the red area is the original intake port right? The green area is what could be potentially opened up to match with the intake manifold? If that is the case, why is A the only area that is removed, why not remove B too? Also how far down do i feather this port?

Thanks.

 

[maldotcom2]

You dug up a 9-month old thread to say that? Ripper of a contribution, hope to see ya next time! :rofl2: