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How many cars are you aware of running 4.060" bore on a 6liter ironblock?

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Old 11-02-2002, 05:23 PM
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Default How many cars are you aware of running 4.060" bore on a 6liter ironblock?

I really want to go with a 4.060 overbore on my ironblock stroker as i can get 427 cubes this way with a 4.125 crank.

However, most recommend using smaller bore of 4.030 for more cylinder wall reliabilty and in case i ever decide i want to spray which i DO NOT WANT to do as i am into natural power and not N20.

Pro stock john is the only LS1 stroker i am aware of running a 4.060" bore on his LQ4 ironblock. Please let me know of any others you aware of and how long they have been running their stroker for and whether they have had any problems.

Thanks

MTI 422 Z07 Roadster (may swith to 427 however <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> )
Old 11-02-2002, 08:19 PM
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Default Re: How many cars are you aware of running 4.060" bore on a 6liter ironblock?

I have a 4.06 bore with the iron block. Motor was built by ARE. I have 6000 miles on this motor with zero problems. It has been subjected to both 150 HP nitrous and an ATI D1 SC which I removed due to inability to stop belt slippage. Power output with only SC @ 8.5 PSI was 697 SAE RWHP and 710 SAE RWTQ. I will dyno Monday with TNT 250 HP shot of nitrous.
Old 11-02-2002, 09:19 PM
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Default Re: How many cars are you aware of running 4.060" bore on a 6liter ironblock?

427Z06:

I take it then to get the 427ci you have the 4.060 overbore with a 4.125 crank? This is exactl what i am thinking of building. What type of dyno numbers have you pulled and any track ets and traps?

If you did it again, would you go with this same setup and i would imaging the power is SICK on the street. What is your overall imression of this engine and performance. How did you happen to come up with the 427 cubes on a ironblock as i don't know anyone else running these same specs. How much spray did you run thru this bad boy?

Thanks man,

MTI 422 Z07 Roadster
Old 11-03-2002, 08:33 AM
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Default Re: How many cars are you aware of running 4.060" bore on a 6liter ironblock?

427Z06, any chance this car was in Dallas at the end of last March? I'm thinking I remember seeing a big motored red Z06 from CO at a local dyno day.

Roadster, welcome aboard.




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