Preping an AfterMarket Block

powersrj · April 23rd, 2008, 11:37 AM

If I were to get an aftermarket 351. How much should it cost me to get it bored to 427 capability (4inch bore?) and any other modifications that need to be done if any. If there is what would need to be done? Thanks for the help.

1slo5.0 · April 23rd, 2008, 02:48 PM

It depends on what they charge in your area. A 427 is either a 4.125 bore x 4.00 stroke or a 4.030 x 4.170 stroke.

powersrj · April 23rd, 2008, 05:27 PM

Well what is it in your area?

Iownastang · April 23rd, 2008, 08:39 PM

Originally Posted by powersrj

If I were to get an aftermarket 351. How much should it cost me to get it bored to 427 capability (4inch bore?) and any other modifications that need to be done if any. If there is what would need to be done? Thanks for the help.

you can not bore a 351 to 427

And machines shops vary area to area call and get an estimate

1slo5.0 · April 23rd, 2008, 09:23 PM

Originally Posted by powersrj

Well what is it in your area?

Depends on where I go. The average price to bore and hone cylinders around here is about $150 for a V8.

April 23rd, 2008, 11:37 AM	#1
powersrj Regular Join Date: Feb 2007 Posts: 374 iTrader: 0 reviews	Preping an AfterMarket Block If I were to get an aftermarket 351. How much should it cost me to get it bored to 427 capability (4inch bore?) and any other modifications that need to be done if any. If there is what would need to be done? Thanks for the help.

April 23rd, 2008, 02:48 PM	#2
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	It depends on what they charge in your area. A 427 is either a 4.125 bore x 4.00 stroke or a 4.030 x 4.170 stroke. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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April 23rd, 2008, 05:27 PM	#3
powersrj Regular Join Date: Feb 2007 Posts: 374 iTrader: 0 reviews	Well what is it in your area?

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