Tell me about your 383 Stroker engines

[djmachinist]

Originally Posted by Super73

Glad it's running better..


Did they give you a grind number or tell you what comp cam they put in it?
Did you go with that XR269?

I'm also very curious where the original DCR number of 9.3 came from. Here is a link to Summits web page with the spec for the edelbrock 2204 cam you had in it. http://www.summitracing.com/parts/EDL-2204/ It has a total al 296* of duration. With a higher 11-1 CR this is what the DCR would look like based on different intake center lines.

102 ICL = 8.46dcr
104 ICL = 8.31dcr
106 ICL = 8.16dcr
108 ICL = 8.01dcr

I can almost garuntee the cam was not installed on a 102 icl, but even if it was DCR was never higher than 8.46. For it to have been 9.3dcr with 11-1 CR your intake would have had to closed at 57* ABDC. In order to do that, a cam with 296* total duration would have had to been installed at an intake center of 89*. No timing set go that far.

My point, you were never at 9.3dcr..

Now for the new set up. If you went with the Comp cams XR269HR you mentioned earlier in the thread, even with less SCR you DCR is higher if installed on the 108 icl it is advertised on.

106 ICL = 8.65dcr
108 ICL = 8.52dcr (installed straight up with the 108icl)
110 ICL = 8.40dcr

Now with that, I hate to be the one that says I told you so, but I believe in the begining of this thread, I advised you to assemble the motor yourself and actually check everything out. Who knows what else is not right in that motor. Hopefully nothing else is wrong with it, but it makes you wonder. I would even wonder if the parts they told you are in it are really in it. Guess you will never know for sure.

Yes, the cam is a XE-269-HR. I ordered the cam myself from Summit. Now, I do not for sure they installed it in my engine. Who Knows.

Now, for the latest, I went home at noon and drove the truck back to work to let a fellow worker look at the truck. When I pulled into the parking garage at work, I opened the hood and immediately smelled Coolant. Nothing coming from the water pump or radiator or hoses. Than I looked at the engine on the drivers side and coolant is weeping out around the head gasket between the two middle cylinders.

So....The saga continues....