Well over the last few months, a friend of mine and myself have been working on a set of LT1 heads for my up coming project. The pics of the ports arent that great because the heads were allready together and I couldnt get much light in the bowl area. I used Manley Race Flow 2.00/1.56 valves, valve job, milled the heads down .005, and all the other good stuff. For the valve job, he didnt do the normal 3 sharp degrees for the cuts(30,45,60). The cut has many many little angles, and when you feel it and look at it, you can tell that it is a complete radius with now sharp cuts. HE said that this will help alot with not disturbing the flow. Its hard to tell from the pics but we streamlined the valve guide boss, removed material where necessary, and smoothed and contoured the whole head. I did some smoothing on the short turn radius, and opened up the bowls a fair amount, to where it needed to be. The guy who helped me through the process, happens to build alot of engines, and has his own low 7 sec Dodge Avenger Prostock car. He is a family friend and he offered to help me with the heads. I think they look really good, and hopefully when I have them flowed next week, they will flow some good numbers. Here is a link to where the pics are
http://groups.msn.com/BriansFbodyPic...03project.msnw To complement the heads, I will be going with a ported intake, Comp XE236/242, hooker long tubes, and all the other bolt ons.

Thanks
Brian

 

Those look good! Now to see what kind of power they make...

 

Nice, and remember: Flow numbers aren't everything.

 

Very nice! That thing will be a beast with the XE236/242.

 

Lookin' nice Brian. Can't wait to help install those bad boys in a month or so. Or at least watch you and Don install them. My video camera will be there for the open header start up.

 

Here is a little more info on the heads. We used Comp 987 springs, intalled at 1.800, Comp titanium retainers, 10 degree locks, spring locators or cups as some call them. The combustion chamber size isaround 52.6 cc, and this equates to about 11.25:1 compression with .039 gaskets. The heads were only milled .005 thousands to clean them up and make them true. We spent about 52 hours in the porting, polishing, contouring etc. Then there is another 5-8 hours in the work the machine shop did with setting them up etc. The bill for the valve job, blending the new valve job into the bowls, cutting spring seats and guides, assembling and checking all spring heights, milling, cc'ing them, only cost me $230. I know flow numbers arent everything, but I just want to see how our work came out. Well thanks for the replies.

Brian

 

ttt

 

Pretty.

 

thats nice, but im curious what cam you will be running witht them. im in the middle of finishing my heads. should be done sat. then off to the shop for the spring install, milling .020 off, 2.02 and 1.64 valves, and a 3 angle valve job.

but i hope you post back with some numbers.

 

I am going to use a Comp cams XE236/242 on a 112. I will try this cam for this year, and if I dont like it, I will get a custom ground one next fall or winter. I am used to big cams, so it wont be anything new to me. I will post back with the flow numbers next friday the 14th. I wanted to get them flowed this week, but my heads are at home and I am school. I will be having them flowed on a SuperFlow 600 flow bench @ 28inches of water.

Brian

 

He's actually gonna post the flow #s! Thought you weren't going to?

 

why wouldnt he.

 

He has his reasons. Or did have reasons.

 

I originally wasnt going to post the flow numbers because if they flowed like ****, I didnt want everyone knowing about it. I guess I probably should post the numbers so that I can see how they compare to other home ported heads. Alot of the smoothing and contouring was done by me, but all of the rough cutting was done by a good friend of mine that I mentioned earlier. I wanted him to do the rough cuts since he knew how much material to remove and where to take it from. Then I came in and finished up the rest of the head. I guess I cant complain about the porting and help I recieved since it didnt cost me a thing. So hopefully they will flow some decent air.

Brian

 

those look very good just so you know also post the number will ya ? umm... 54cc with stock motor & .39 gasket equates to 11.25:1, 52cc is more like 11.5:1 not sure. just so you know.