6.0 iron block bore 20 over

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02-09-2021, 08:27 PM

Mitch HD Burgess

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6.0 iron block bore 20 over

I have a 6.0 motor and the machine shop says I need to bore the motor 20 over. What size piston wil I need to put my motor back together?

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02-09-2021, 10:07 PM

AgFormula02

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Stock bore is 4 inches. Add 20 thousands to that. 4.020

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02-10-2021, 05:49 AM

Stampede4ever

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Have the block sonic tested to see if you can go 0.065" over, and run some 6.2/ls3 piston.

Stampede.

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02-11-2021, 08:50 AM

cula8r

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Depends upon which rods you have- piston pin diameter? Summit has a bunch, examples like this.
https://www.summitracing.com/parts/s...make/chevrolet

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02-11-2021, 09:05 AM

KCS

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Quote:

Originally Posted by Mitch HD Burgess

I have a 6.0 motor and the machine shop says I need to bore the motor 20 over. What size piston wil I need to put my motor back together?

You will probably have the most options in a 4.030" bore.

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