Over Bore ?

This is a good photo that always make's me think about the engines that are bored more then .060 . I do know some of the old blocks can go more . :eek:

I know of many Hemi's that have been bored .125 (1/8") it depends on the motor.
But I also have seen motors that were junked because of being bored to much, or need the water jacket to be filled.

Pat

Thats why you use a sonic checker and have the bores offset bored to increase over bore ability .....:D

Smokey Yunick said you need 0.130" of cylinder wall after boring/honing.

yep..... :D

Is that with the block filled???

I have heard of guys going .085 on the non thrust walls in the thin spots in a few bores and using a half fill with decent sucess..... now how much flex and loss of hp ...who knows ,probably some for sure.

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Originally Posted by tango

This is a good photo that always make's me think about the engines that are bored more then .060 . I do know some of the old blocks can go more . :eek:

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This is why the 400 sbc makes me nervous.:eek:

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Originally Posted by erik erikson

This is why the 400 sbc makes me nervous.:eek:

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so what your saying is the slant 6 is not going to happen:( and i still have them nice bbc 4.500 bore dish piston for it

I am all for punching out them old 283s . If they are a thick wall block and not all rusted inside .

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Originally Posted by pat mccarthy

so what your saying is the slant 6 is not going to happen:( and i still have them nice bbc 4.500 bore dish piston for it

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Only If we "lay" a 3/4 bead of weld around the out side of it.:LOL:

a full top off of Q set and 1nch thick 3 wide plate to band around the block hold the side of the block from moving

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Originally Posted by pat mccarthy

a full top off of Q set and 1nch thick 3 wide plate to band around the block hold the side of the block from moving

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I think that will hold her.
But what if we decide to shove 30 psi of boost at her?/?:LOL:

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Originally Posted by DennyW

In that case, just build a wood crate for the block. Mix up at least a 5 bag mix, and set the block in the cement. When dry, just bust the crate off, and you now have a grenade Chevy block ready for 30 pounds of boost, which it will need to get the car moving, Mr. 30 lb boost. :LOL:

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Old Boy Your on a Roll tonight :LOL: :LOL: :LOL:

do a way with the head gaskets O ring the deck and glue the head down and a full one pice main cap/ girdle