1984 iron duke build (rebuild now) (Page 2/3) fieroguru SEP 07, 09:09 AM I would check the parts #s on the parts and mic out the crank. I doubt you have a short stroke crank, the longer rods are likely due to a change in wrist pin height of the pistons. There would be no reason for a shorter stroke. You are not trying to reduce low rpm torque for traction and the 2.5L can't live in the 5000+ rpm where you start the see the gains from the short stroke. cartercarbaficionado SEP 07, 11:17 PM quote Originally posted by armos: FWIW, there is an obscure brand of high-zinc oil (Brad Penn) that is dyed green. Small chance that could be what you found in it. haha. I wish. no I put this oil in and it's using primarily 10-30 conventional with a bit of 5-30 since it's what I had at the time. its full if coolant somehow but I haven't found the crack yet. cartercarbaficionado SEP 07, 11:19 PM quote Originally posted by fieroguru: I would check the parts #s on the parts and mic out the crank. I doubt you have a short stroke crank, the longer rods are likely due to a change in wrist pin height of the pistons. There would be no reason for a shorter stroke. You are not trying to reduce low rpm torque for traction and the 2.5L can't live in the 5000+ rpm where you start the see the gains from the short stroke. I triple checked these psrt numbers in pure astonishment. I'm planning on porting the head even further and converting the block to roller lifters since it's pretty easy and doesn't require any mods but if I'm honest this engine is not going back in the 84. I have a very different project in mind and it's quite crazy and is gonna take about a year to get in motion but when it's done it'll be one of if not the first of its kind. cartercarbaficionado SEP 08, 05:29 AM alright got the reman done and ready to go into the car finally. only took 2 days to get it all put together 82-T/A [At Work] SEP 08, 11:57 AM quote Originally posted by cartercarbaficionado: alright got the reman done and ready to go into the car finally. only took 2 days to get it all put together PICTURES!!!! richard in nc SEP 08, 08:09 PM quote Originally posted by fieroguru: I would check the parts #s on the parts and mic out the crank. I doubt you have a short stroke crank, the longer rods are likely due to a change in wrist pin height of the pistons. There would be no reason for a shorter stroke. You are not trying to reduce low rpm torque for traction and the 2.5L can't live in the 5000+ rpm where you start the see the gains from the short stroke. did they offset ground the crank for more cubic inches? cartercarbaficionado SEP 08, 09:39 PM quote Originally posted by 82-T/A [At Work]: PICTURES!!!! haha yeah I'll get some. it's a painted duke just like gm would have done so it's garbage and the oil pan is white currently since it's the only undented one I had. cartercarbaficionado SEP 09, 04:44 AM quote Originally posted by richard in nc: did they offset ground the crank for more cubic inches? honestly not sure. the part number returns as a performance crank from China so yeah. same with the camshaft, the lifters and everything else was from a good manufacturer cartercarbaficionado SEP 09, 04:48 AM quote Originally posted by 82-T/A [At Work]: PICTURES!!!! every picture is on the same night. took 2 hours start to finish and actually only took 20 minutes to drop the engine in from the top and get the mounts and trans bolts in. guess doing it 4 times helps. 82-T/A [At Work] SEP 09, 08:05 AM quote Originally posted by cartercarbaficionado: every picture is on the same night. took 2 hours start to finish and actually only took 20 minutes to drop the engine in from the top and get the mounts and trans bolts in. guess doing it 4 times helps. What year car was this again? It's so interesting to me... because my daughter's 1985 looks totally different from yours. The A/C lines, the fuel lines, they're all totally different. This is a 1986, and the engine compartment looks like mine. Note, they put "Tech-4" on the air cleaner, but it's not a Tech-4 motor... I just came across an 84, and it looks more like yours. I guess yours is an 84?