So I am planning to build a all motor engine B18c

I am still in the process of gathering parts and before I send everything out to the machine shop for assembly.. I am looking for advice

here is a brief preview of the set up:
82mm Toda high compresion pistons
Toda B-spec Camshafts
Toda Valve springs
Ferrea Valves


I got this port & polish p72 Cylinder head in a trade a while back.
The big question.. SHOULD I build on this cylinder head.. It seems to have had a valve drop on cylinder #2 in the past.. Can anyone tell if this is a Standard size Valve?








Thanks in advanced

 

bump

 

lookin good. keep up the progress. Lemme get them rims when u wanna sell.

 

Thanks bro. Big project so all I need is time and money. I will problaby make a build thread before I have everything put together.
Which rims are you looking at? I got some 4x100 bbs for sale and the 4x114 prelude rims.

Still looking for some advice: to build with this head or not. .. I know I can just take it to the shop and ask but im not ready to pay a visit to the machine shop just yet.

 

Its hard to say if it has std size valves from a picture you are going to have to measure it the damage to the chamber is repairable however you don't know about the port work?who did it? Just from looking at the picture it seems like some guides were cut and some were not? You will be ok building with this head so long as it gets overlooked and redone also check the deck make sure this head has not been overmilled already

 

Cool thanks for the advice.
Yes I noticed the guides were cut too (is this common, good or bad?), there is only one of them that wasnt cut and thats the one that seems to have had a drop valve. (maybe it was replaced?)
I dont know any history behind the Port & polish work accept that it looks very well done and consistent. I traded for something that was valued (to me) $225.00 So i believe I came out of top on the trade. The head came complete but there seemed to be some rust-like residue.. I let some motor oil sit on the head and was able to clean some of it off.. But i am sure that if I get it hot tanked it will look good as new.
On the front of the cast there is a stamp with the initials D.H.R .. I dont know if thats the previous owners name or machine shop who did the work. (never bothered to look it up).

Anyways, Thanks for the input. I know my best bet is to take it in to the machine shop but for the time being I am trying to hold off on all expenses.

 

Dhr is dave hickman racing. I would suggest replacing all the guides look at your lmas they may need to be replaced , and you will have to do a recon at the very minimum on this head, plus the chamber is going to need some massaging as well

 

Thanks for the great advice, this information is gold. That way when I go to the machine shop I'll know what to expect.
Could you please expand a little more on what LMA and recon mean?

 

Lmas are the lossmotions they have obviously sat for a while and if it dropped a valve you don't know if they bottomed out or if they will stick and be louder than hell . And with the recon get a good three angle valve job, chambers fixed, install and ream new guides,resurface and assemble. And at the very minimum have your springs checked to make sure they haven't gone soft or coil bind