kenkaru

http://www.shinken.us/DIY_heads.htm
So far I've just posted a compilation of pics that I put together for printing. I got all of the pics off this forum so thanks everyone! If you see some pics of yours, let me know and I'll put up some credits. In the future, I plan on adding notes and information that I found especially usefull.

I'm done porting mine. Just have to clean, paint em, and slap em on!

1dirtyZ

iTrader: (1)

great job! how did you get that kind of finish on the ports?
and what did you break into (the spot you marked with red on one of the ports)? was it a water passage or a bolt hole?

shouldaboughttheZ

iTrader: (8)

I would like to know also.

Bo White

iTrader: (59)

Good collection, I see a pic or 2 of mine in there

kenkaru

Those pics aren't of the heads that I'm working on. It is a collection of pics that I put together when I was researching and preparing.
The area that you can break through on is the rocker boss (bolt hole) in the intake port. I'll put up more info on the site in a little bit.
Thanks Bo! I read a lot of your posts when I was researching.

GuitsBoy

iTrader: (4)

Were all those heads really hand ported? Seems like most were CNC ported and possibly hand finished.

Anyway, heres a couple of pics if theyre of any use to you. Sadly no finished pictures after I polished them up and milled. I ran into an emergency and had to get the heads on teh car ASAP and didnt get to snap and pics at the end.

http://picasaweb.google.com/GuitsBoy...dPolishedHeads

kenkaru

I think most of them are hand port jobs but mainly, I was just looking for pics that show results I felt were attainable with a hand port. Thanks for the additional pics. I'll include them. The more the merrier!

2000TransAmWS6

iTrader: (12)

thanks for the site! i would really like to port some heads for myself... if i could ever find the time.

when you smooth down the rocker boss and expose the hole, what should you use to smooth the hole out, so that air can smoothly run over that area? epoxy?

kenkaru

um I guess you could do it like a throttle body but I think most just leave it as and use thread sealer on the rocker bolts.
I'll work on the page a little more once I get caught up on school work.

Xtnct00WS6

iTrader: (8)

Yeah, I see some cnc track lines on some of them.

2000TransAmWS6

iTrader: (12)

bump...

does anybody else know the answer to this, for certain?

98formulaMAH

iTrader: (11)

where do i get that SA kit you referred to in the link?

GuitsBoy

iTrader: (4)

I think most dont bother filling the hole at all, I know I didnt. Just make sure you use thread sealer so you dont burn oil.

hammertime

iTrader: (1)

Anybody have before and after numbers for the DIY porting? Dyno or ET & MPH

I've done some light port & polish work on SBC heads in the past, but not sure what the average DIY'er can achieve with LS1 heads (241) for the time it takes.

GuitsBoy

iTrader: (4)

I beat a car with a similar cam and stock ls6 heads by 35 RWHP. I also came within 2 HP of a 5# supercharged car.

2000TransAmWS6

iTrader: (12)

thanks!

Xtnct00WS6

iTrader: (8)

The bolts will be sticking out of the hole, so you shouldn't fill it in. What you can do is cut the bolt ends off (intake only) to match the intake wall. I'm sure this is worth a few good cfm. What I found was when I did this that you need to make sure you put the same bolt back in the same rocker hole, b/c they are easily mismatched. You also need to make sure you torque them all to 22 ft/lbs so they're consistant. I numbered my intake bolts so I knew which one went in which bolt hole.

GuitsBoy

iTrader: (4)

How much was actually sticking through? Ill have to pull the intake some time and take a look myself, not that I can do anything about it now.

Xtnct00WS6

iTrader: (8)

Mine stuck out about a quarter inch.

kenkaru

So couldn't I just cut the rocker bolt length like .250? I'm just having a hard time imagining the bolt ending up at precisely the right angle. Maybe mark the bolt heads to verify the angle?