7mgte head porting and polishing thread

[NashMan]

Well I have been doing allot of reading though out the years on this subject , and now doing head's for other people here is one I am doing right now


here is what a stock head looks like this is good on to some of them have some nasty casting bulbs in them

detail's thus far

de-shouded valve seat's then slight plunge cut

and this is were I am now

this is mild light porting/blending and clean up it's not fully done since there is some parts to work on mainly the part a round the valve seat need to be taken down and then gasket match it


later on I will show my cylinder head I am building for my self and is consider to be a wild head that will need custom piston made for it

 

[NashMan]

well got so more done today

finished roughing in all the intake ports and did some conning of the valve guides

stock

conned

 

[NashMan]

well i have fished the hole head and figure she will flow alot more then stock


I will be building flow bench coming up here for when I start on my wild head i have in my mind


any who here are the pic's

if any of you guys wana do this at home and no worrie about mess it up. Just take down the area around the vavle guide and open the up the grove abit and then cone the vavle guide, mix this with slight deshording of the valves and you be shocked on the out come for doing so very littel


oh ya the head not fully finished just need ot take the sharp corners off in the combustion chambers

 

[radiod]

Looks nice....I'm interested to see the results. Do you have flow numbers on the head before your work or what a typical stock head flows?

 

[NashMan]

the numbers are around

i don't have numbers for this head but it simuler to the one I ran in my car and did 535 at 15 pounds at 7200 and 617 on five slugs at 20 pounds

 

[NashMan]

for the next wild head the hole valve guide casting seat is being hogged right out and then the valve guide being cut down to about the high of the stock floor is


and I still working on my combustion chambers but I have to cc them before I go further and allso take mold of the chamber and send it off to je pisonts


but i need ot talk to je about the combustion sides (much like 2jz head) but if I take to much away not sure if they can make piston with out it popping out of my block and messing qench and stuff

all so going to be running stock sized 2jz valves