Head Porting

[tomtom72]

Originally Posted by Locobob

Kind of a shame they're going back on the motor just to get all dirty again. Maybe I'll just hang-um on the wall to stare at.... nah.

Your work looks sooooo goooood that it is almost a shame that they need to go back on the motor, but all things considered I'd have to say....NOT!

Bob I hope you enjoy the fruits of your labor for a long time! Kudos man!

[jonszr1]

i would be willing to bet you now have 25-30 more hp to your allready nice 368.i would have to go to the strip and see what she would do . enjoy

[Polo-1]

Originally Posted by Locobob

All done, here is the finished product:

Way too much Aluminum in there and whats that stick in the middle for

Should look like this Rob

[Locobob]

Originally Posted by Polo-1

Way too much Aluminum in there and whats that stick in the middle for

Should look like this Rob

Kevin you need to hurry up and get that monster running so we can see if bigger turns out to be better.

[Locobob]

Finally got a chance to do some work on my car. Decided to CC the chambers to see how close they are. My budget method involves a clear piece of plexi in which I drilled a few holes, a large syringe and some trial and error to come up with consistent readings. All of them came in between 39 and 40cc except for one which was about 38.5cc. I did some clean-up work on the low chamber and brought it up above 39cc.

[Locobob]

Also after waffling over the idea for what seems like eternity I have decided to yank the secondarys out. For those that have done this procedure.... how in the hell do you pull the throttle shafts out??? Tried yanking on them with vice grips to no avail.

[Polo-1]

Put the nut with washer back on and use 2 flat blades. You have get the alum steak spots cleaned out. 2 or 4 punches per throttle blade/bearing.

Mine cc'd 39.7

Looks good Rob

[Paul Workman]

Originally Posted by Locobob

Also after waffling over the idea for what seems like eternity I have decided to yank the secondarys out. For those that have done this procedure.... how in the hell do you pull the throttle shafts out??? Tried yanking on them with vice grips to no avail.

Per Pete, I placed a socket over the shaft, and put a washer over the end of the socket, and used the nut from the throttle shaft and cranked it down on the shaft against the washer. The shaft and bearing pull right out!!

I recommend pulling the breather box, or you'll have trouble getting the throttle shafts out. Just loosen the AC pump (two bolts, if I recall) and move it out of the way. Then the box top comes off and removing the remaining throttle shafts is a "snap". And, another reason for removing the air breather box is so you can drive the freeze plugs into the bearing well!

Speaking of freeze plugs, the next thing your gonna need is the right freeze plug. Pete suggested the Dorman 555-108, but they didn't fit, for some reason - too big. I went with the Dorman 555-110s, but had to splay them a bit (with a socket and a hammer) to make them fit snug. (I also sealed them with JB Weld, after degreasing the holes w/ brake cleaner.). (Marc H jotted down a note for me indicating the Dorman 555-011(?) would also work, but the dealer would have had to order them, so I went with the -110s on hand.)



Piece o' cake, buddy!

P.

[Pete]

Originally Posted by Paul Workman

Per Pete, I placed a socket over the shaft, and put a washer over the end of the socket, and used the nut from the throttle shaft and cranked it down on the shaft against the washer. The shaft and bearing pull right out!!

I recommend pulling the breather box, or you'll have trouble getting the throttle shafts out. Just loosen the AC pump (two bolts, if I recall) and move it out of the way. Then the box top comes off and removing the remaining throttle shafts is a "snap". And, another reason for removing the air breather box is so you can drive the freeze plugs into the bearing well!

Speaking of freeze plugs, the next thing your gonna need is the right freeze plug. Pete suggested the Dorman 555-108, but they didn't fit, for some reason - too big. I went with the Dorman 555-110s, but had to splay them a bit (with a socket and a hammer) to make them fit snug. (I also sealed them with JB Weld, after degreasing the holes w/ brake cleaner.). (Marc H jotted down a note for me indicating the Dorman 555-011(?) would also work, but the dealer would have had to order them, so I went with the -110s on hand.)



Piece o' cake, buddy!

P.

Paul the 555-108's work they are on Al's,Bob's (2 motors),Kevin's and my LT5's you need to use a smaller socket to hammer them in you can not use a socket that fits too tight in the freeze plug it won't let the freeze plug crush, been there done that.

Pete

[Locobob]

Thanks for the input guys. I've been trying the socket method but don't seem to have the right combination of stuff to get the job done, looks like a trip to the hardware store is in order.

Oh and thanks for the freeze plug info too, that was gonna be my next question.