porting the a20a3 head

[stephensimmons]

Well I started porting my head today for my low budget build and thought I would share these with yall to see what yall think?








These are all ruff cuts but its a start! I got a little excited to be building an engine again after about 9 years. Well I built a 14.0L cummins bout 2years ago in my big rig but that was all in 9 years and it feels good to do it again! Just though i would share that with someone or people that might care.

[Tdurr]

looks pretty good for rough cuts man! good luck with everything!

[stephensimmons]

looks pretty good for rough cuts man! good luck with everything!

Thanks alot!

[stephensimmons]

Well I finished my ruff cuts so heres more pics!







Now I gota polish it so I can send it to the machine shop to get It shaved and a 3 angle valve job! Ill be back with more pics after the polishing!

[Tdurr]

sweet!! i might need to send u a head to get port and polished by you!

[stephensimmons]

sweet!! i might need to send u a head to get port and polished by you!

LOL! We'll talk about that 4sho!

[2oodoor]

looks like you are having fun with this one..
Pretty interesting project you have there

[stephensimmons]

looks like you are having fun with this one..
Pretty interesting project you have there

Yes it kinda is. All the engine I've built ran alot better when I spent alot of time from the head up. And my stageII cam is finished jus waiting for them to open so I can pay for it and get it on the way. So im bout to take the head to the shop in a few to have it shaved down valve job done and cleaned of coarse!

[2oodoor]

nice job on the exhaust ports too btw

[stephensimmons]

nice job on the exhaust ports too btw

Thanx! And trust me that too alot or time! I had hella crampe in my right hand after doing those!

[2drSE-i]

Slap a head gasket on there and then open the chambers up to the edge of the headgasket. It will help a LOT for deshrouding the valves. Other than that, it looks great!

[stephensimmons]

Slap a head gasket on there and then open the chambers up to the edge of the headgasket. It will help a LOT for deshrouding the valves. Other than that, it looks great!

Thats a good one! I never done that one but I will and thanks!

[2drSE-i]

Thats a good one! I never done that one but I will and thanks!

Check this thread

http://www.onecamonly.com/general-te...ries-head.html

Its on onecamonly, but the guy doing the work is AwESOME

[mushroom_toy]

Wish I would have done this before i slapped the head on. XD

[stephensimmons]

Wish I would have done this before i slapped the head on. XD

I wish you had too! It took me about 4hours to do it.

[mushroom_toy]

Did you use a dremel? I would just be scared that I would take off too much material.

[stephensimmons]

Did you use a dremel? I would just be scared that I would take off too much material.

LOL!!!!!!!!!!!!! Yes..............well kinda sort of............Dose my Black&Decker 1/2in drill with a set of 1/4in shank carbide burr set count as a dremel?........

[mushroom_toy]

dont know lol. I could still technically do some porting on the intake an exhaust side...but I dont know exactly what to do lol.

[stephensimmons]

dont know lol. I could still technically do some porting on the intake an exhaust side...but I dont know exactly what to do lol.

If your going to do it just clean it up real good and make sure u get all the shavings out!

[MessyHonda]

head looks good...i was trying to remember a company that did head porting for a very decent price

[AccordEpicenter]

looks pretty good. Just remember not to polish the intake side that much, just finish it up a bit with sandpaper rolls and such

[stephensimmons]

head looks good...i was trying to remember a company that did head porting for a very decent price

I never knew of any. All the ones I know of ether was outrageous (so I thought) or wouldnt do it. That why I always did all my own and always made sure I had more than one head when doing a different head for the first time. Besides dont mind the time I put into things like this because that alows me to spend money else where in the project.

[stephensimmons]

looks pretty good. Just remember not to polish the intake side that much, just finish it up a bit with sandpaper rolls and such

I was told that before, some thing about the fuel atimisation or something? Im not sure of the correct term but ill be sure to do that. I just gota find my 1/8in dremel now being I did this with a 1/2in drill. Oh and thanks for the reminder and thank you Messy too.

[MessyHonda]

found it...this site makes me want to port and polish

[stephensimmons]

found it...this site makes me want to port and polish

Shit do it! We both know that you will gain the most hp by port and polishing that any other mod EXCEPT boosting,nos,or supercharger. And secondly thats the problem with our motors they cant breath and of coarse the long stroke and small pistons which is not a huge problem but would be better if they had short strokes and larger pistons.