The belt does not cause the timing marks to move at all. It just changes the amount of slack the tensioner must take up. The 63 belt is tighter than the 64 belt.

 

How much for the whole swap

 

If you have to ask....you haven't even bothered reading the thread lol.

 

so what pistons do i need to get around 9-1 compression to 10-1 i dont wanna end up at 10.6-1 by using the 9-1 pistons like previous posted in the thread

 

Pretty sure wiseco's were the problematic ones. I have a guy with CP's and they are ok on compression but are noisier(same PTW, I have wiseco's). I have used multiple sets of manley pistons with no ill effects either.

If you intend to run e85, don't worry with the compression, off boost driveability will be a touch better with higher cr. Or at least so they say, I've not noticed a huge difference.

 

Call Wiseco if you want to go with their brand. I really like their 1400HD ones.

And yes, their chart is incorrect. They used the wrong cylinder head CC and compression gets up over 10.6:1 or so. I was not happy with their customer service when I called them and told them about the mistake. They didnt seem to care and wouldnt exchange my pistons for ones with -17cc dish. I just ran a thicker head gasket to drop the compression around 10:1 since I occasionally run pump gas.

 

I'm running the Wiseco 1400HD's. 9.0:1 CR

 

Im using 9.0/1 cr wisecos in my new build, I was running 10.5/1 cp's in my last build and 3 out of 4 of them were cracked from the side of the wrist pin hole down to the bottom of the skirt, they got put through hell though. I was just glad they didn't come apart and junk my head. My block was cracked as well so it was junk anyway.

 

Anyone have any opinions on whether I should go with the Manley Platinum 87.0mm 9.1CR pistons (# MAN 608020C-4) versus the Wiseco 1400HD 87.0mm 9.4CR pistons (# K627M87AP) for the 2.4 long rod build?

Obviously there was confusion about the wiseco's CR numbers since they have the head CC wrong, but on their current specs sheet, assuming that the evo head volume is 43cc and the head gasket thickness is .042ish, it's all correct when I calculate it.

Manley spec sheet, for reference: http://www.maperformance.com/product...head-chart.jpg

 

Make sure that the wrist pins are as thick or if not thicker than the 1400hd ones. The main difference in the wiseco standard and the 1400 ones are the wrist pins thickness.

 

So I took my block/head to a machine shop a couple days ago. I bought the OEM 9 gasket assuming he would be able to bore it out but he said he was unsure of how to do so. Is this a typical route (from my research it appears to be)? He was also unsure if it would affect the seal of the gasket.

Should I just bring the headgasket to another shop or just have him go for it?

 

Any thoughts?

 

Hit up Tom at TSCOmp. He has oem 9 gaskets that are bored out to 87mm by AMS.

 

I mostly just don't want to go through the hassle of returning something and getting a new part. I've seen a lot of postings/threads saying to just bore out the stock head gasket. Does that not work?

 

Since we are talking head gaskets, how many have chosen to go with an O-ringed head vs non O-ringed? I hear of all these HG failures but never see proof of it. Likewise, in the DSM community the 4g64 is widely used and I haven't heard of HG problems (DSM 4g64 is the exact same dimensions at the Evo style).

So how hard are you guys pushing your non-Oringed engines?