Diamond Piston mods...

H

HardcoreB

New member
While trying to mock assemble my shortblock today I found my valvepockets are too deep into the pin area and I cannot 'thread' the pin into the piston/rod...Follow me so far? The rod hits the piston before the .990" holes line-up! SOAB! LOL. I need to slightly remove material from the bottom of the piston and/or remove material from the rod. My question(s); How much material is adequate on the top of the piston pin end of the '396' BME alloy rod? (I have .300" now.) What is a safe amount of material to LEAVE the piston with if I only trim the bottom of the valvepockets instead? Last, how much clearence should I have between the rod top and piston bottom. If this helps: 530 gram bare piston, .125" wall T/S pin, 8,000 RPM? Thanks in advance! I still have my job card from Diamond.
 

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I told ya the same thing on the bullet. take the pistons and rods over to diamond. They can fix it for ya.
 
HardcoreB said:
I've been around the block, have other credentials. Would you approve if you knew who I was...I don't care. What is your contribution to this post? Go play somewher else Junior.
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LOL someone got owned. I've known Hardcore for years he knows his stuff and likes to help out other. He is like Sean from C.A.R.S

Welcome aboard Sean!
 
Thanks Mike. I guess I've been doing some light lurking too long. In the past, by the time I get to posts, I see Sean '#2' has already answered. He takes my answer...All I could contribute is 'I agree'
 
I want to report back that Diamond fixxed the problem for me directly. I did not have to utilize the original builder/orderer. Gibbey was courteous, accomodating, generous... I could go on but, I'll sum that because of this great customer service and product I will be a repeat customer. Thanks to all.
 
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It's great to see the problem got corrected. That piston and rod don't look like they would go well in a grocery getter. Unless of course you like to get where your going realllly fast.

AutoRoc said:
Why is this your first post and you joined 5 years ago? :)
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I think HardcoreB is just trying to boost his post count...............OK I can't believe I just said that.
 
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