of potential for future uses. 
dart 205 guys in here >>>>>
Thread Starter
On The Tree
Joined: Jul 2006
Posts: 127
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From: Alabama
dart 205 guys in here >>>>> I was wondering if you need to fly cut your pistons to run these heads on a stock 02 LS1. With the 62cc head what is the compression and is it pump gas friendly??. And finally is the 90/90 intake a must over the LS6 intake.
All info is appreciated
All info is appreciated
TECH Apprentice
Joined: Jul 2005
Posts: 374
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No flycutting required with a stock cam. I'm running the Dart 205's with a GM head gasket P/N 12589227 (4.039 bore, .052 compressed thickness) which gives me 10.95 compression ratio. My DCR is 8.678 and I run 93 octane Mobil without issues. You won't be able to get by with these heads and a stock cam. Your DCR will be WAY too high and it'll give you some major tuning headaches. You'd have too crutch it with a thicker head gasket and you'd lose too much quench, which in turn would make it more prone to detonation. I don't know the seat to seat timing specs for a stock '02 cam , if I did I could be a little more specific on how much too high your DCR would be. Most people shoot for a DCR of about 8.5 or so for a street engine on pump gas. As far as the intake is concerned, you don't have to have a 90/90 to run these heads, especiaaly with a stock camshaft.
On a different note, I see you've run at GIR before. Did you recently move from St.Louis to Alabama?? (I live in St.Louis)
On a different note, I see you've run at GIR before. Did you recently move from St.Louis to Alabama?? (I live in St.Louis)
Thread Starter
On The Tree
Joined: Jul 2006
Posts: 127
Likes: 0
From: Alabama
oops I am sorry about that lol, but good info what I was trying to ask is can the heads be ran with the stock bottom end and a different cam. Something a littler bigger that say a hot cam. I know this is sort broad, but i am looking to see what I can do with the stock stuff. If I have to fly cut the pistons then I will hold off until I build a new bottom end.
As far as gateway, it’s been about 3yr ago that I was there last. But there were two others guys I knew that had 93s. They were running mid 12s. It may have been me. My car is red, hardtop had eagle wheels.
As far as gateway, it’s been about 3yr ago that I was there last. But there were two others guys I knew that had 93s. They were running mid 12s. It may have been me. My car is red, hardtop had eagle wheels.
11 Second Club
Joined: Jun 2005
Posts: 1,537
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From: Was New Orleans, but swam to Baton Rouge
I am running the Dart 205s on my Z06. They were milled a little to bump compression. Running a F14 cam (232/234) with .600 lift on each side and it did not require any flycutting.
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Originally Posted by Sigforty
I am running the Dart 205s on my Z06. They were milled a little to bump compression. Running a F14 cam (232/234) with .600 lift on each side and it did not require any flycutting.