400 sbc max bore size?
10-29-2007, 09:30 AM
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DYNO TECH
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400 sbc max bore size?
whats the maximum bore size for a sbc 400?
10-29-2007, 10:22 AM
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RACING JUNKIE
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Location: Fountain,MICHIGAN
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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)
10-29-2007, 10:50 AM
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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.
10-29-2007, 04:53 PM
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bbchevy Stanard bore is 4.125
10-29-2007, 04:57 PM
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Quote:
Originally Posted by davis419b
bbchevy Stanard bore is 4.125
I thought standard Chevy BBC bore was 4.250 maybe not!!!!!!!
10-29-2007, 05:02 PM
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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.
10-29-2007, 05:49 PM
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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)
10-29-2007, 06:18 PM
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10-29-2007, 07:44 PM
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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?
10-29-2007, 07:55 PM
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Quote:
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