400 sbc max bore size?

Old 10-29-2007, 10:30 AM
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rabiddawg
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Default 400 sbc max bore size?

whats the maximum bore size for a sbc 400?
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Old 10-29-2007, 11:22 AM
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bbchevy
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Default 400

GM Block
Most are Junk @ 4.125!
But,if i were to use a Stock Block,i would have it Sonic Checked!Good $$$ Spent,that way you know where the Bores are?
Later
G 8)
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Old 10-29-2007, 11:50 AM
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jmarksdragster
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Try to keep the blocks to .030. You may be able to go more, have the block sonic tested over .030.
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Old 10-29-2007, 05:53 PM
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davis419b
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bbchevy Stanard bore is 4.125
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Old 10-29-2007, 05:57 PM
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hink
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Originally Posted by davis419b
bbchevy Stanard bore is 4.125
I thought standard Chevy BBC bore was 4.250 maybe not!!!!!!!
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Old 10-29-2007, 06:02 PM
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davis419b
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hink , the topic was for a sbc 400 ! bbchevy was the one who posted that 4.125 was max bore for a 400 sbc.
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Old 10-29-2007, 06:49 PM
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bbchevy
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Default 400

I was NOT saying that the 400 SBC had a Max bore of 4.125!
What i said was MOST of them @ 4.125 are ().
Maybe this will Help?Maybe,NOT?
Later
G 8)
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Old 10-29-2007, 07:18 PM
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WHATEVER !
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Old 10-29-2007, 08:44 PM
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rabiddawg
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hmm im confused now lol
I got a buddy that is attempting to bore out his 400 sbc .060 over.
is that acceptable?
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Old 10-29-2007, 08:55 PM
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hink
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Originally Posted by rabiddawg
hmm im confused now lol
I got a buddy that is attempting to bore out his 400 sbc .060 over.
is that acceptable?
Only a sonic test will tell you if can be bored out .060 over
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