Cylinder spacing on 4.0 block

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Plechtan
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Cylinder spacing on 4.0 block

Post by Plechtan »

Maybe this should be move to FAQ section

Cylinder spacing on a 4.0 Block is 4.380" center to center. Lifter bore spacing is 2.02 center to center .903 lifter, Center pushrod, oil through pushrod.
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Re: Cylinder spacing on 4.0 block

Post by yuppiexj »

Isn't that the same bore spacing as a SB Ford?

runs to drop a pair of Dart Windsor heads on the band saw to create the awesomest 4.0 crossflow head.
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Re: Cylinder spacing on 4.0 block

Post by Muad'Dib »

I added your post to the FAQ's Thanks!
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Re: Cylinder spacing on 4.0 block

Post by Alex22 »

Head bolts don't line up.
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Re: Cylinder spacing on 4.0 block

Post by Plechtan »

Maybe you could buy the heads directly from Dart and ask them not to drill the head bolt holes. A welder does wonders with an aluminum head.

I wonder if they kept the same spacing with the OHC motors?
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Re: Cylinder spacing on 4.0 block

Post by lafrad »

ooo... OHC would be interesting... probably start running into limits on the strength of the block and parts there....
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Re: Cylinder spacing on 4.0 block

Post by Plechtan »

The Ford modular engines use a 100mm cylinder spacing, that is less than 4 inches. I wonder what the spacing is on the Chevy (4.3?) inline 6 they use in the trailblazers, that is an OHC motor.
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