Early a460 block and 4.75 crank
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Wheelie58
powerstrokeace
6 posters
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Early a460 block and 4.75 crank
Will there be any problems placing a crank in one of these blocks? I know where there one for sale and may make him an offer on it. I would put this in with a TFS A460 heads worked over my one of the Fourm member here
Ace
Ace
powerstrokeace- Posts : 1496
Join date : 2009-09-07
Location : colorado
Re: Early a460 block and 4.75 crank
I gotta check my notes, but as I recall..with an Oliver steel rod, you need to make a small notch at the bottom of the bores and one place on the pan rail.
Aluminum rods take more work.
More info tomorrow
Keith
Aluminum rods take more work.
More info tomorrow
Keith
Re: Early a460 block and 4.75 crank
I have a set of olivers but they are 6.800. i'm thinking these maybe too long. not sure just started to think about this.
Ace
Ace
powerstrokeace- Posts : 1496
Join date : 2009-09-07
Location : colorado
Re: Early a460 block and 4.75 crank
Yeah...
Most of the 632/638 deals that we do are 6.7" rods..in a 10.3" block.
Most of the 632/638 deals that we do are 6.7" rods..in a 10.3" block.
Re: Early a460 block and 4.75 crank
Ok...memory is back.
Steel rods...small notching at bottom of the bores and a place or 2 on the pan rail.
Can be notched by hand with a die grinder. Aluminum rods take more work, usually in the mill.
Keith
Steel rods...small notching at bottom of the bores and a place or 2 on the pan rail.
Can be notched by hand with a die grinder. Aluminum rods take more work, usually in the mill.
Keith
Re: Early a460 block and 4.75 crank
well this is coming back up. need to get more info on where this need to be done. looks like this is where I'm going....
Ace
Ace
powerstrokeace- Posts : 1496
Join date : 2009-09-07
Location : colorado
Re: Early a460 block and 4.75 crank
Im gonna be doin gbe same deal here pretty soon, with one of the latest production blocks, alum rod deal
richter69- Posts : 13649
Join date : 2008-12-02
Age : 53
Location : In the winners circle
Re: Early a460 block and 4.75 crank
The 4.75/6.800 combination leaves a 1.125c/h for a 10.300 block height. With 1/16th rings the top ring could be .260 down, max. With .043 rings it could be .300 down. This could work if the valve pocket is "around" .200 deep.Not a great NOS design but "some" could be used. A flat top or dome would be the way to go. A dish would be out of the question as far as any significant volume.
gt350hr- Posts : 662
Join date : 2014-08-20
Location : Anaheim , CA
Re: Early a460 block and 4.75 crank
6.7 rod 1.225 pin height? Ring package? Debating on staying with bottles or biting the bullet and just going turbo.
kim- Posts : 700
Join date : 2009-06-27
Location : Tucson AZ
Re: Early a460 block and 4.75 crank
My 640 has a 6.835" aluminum rod. I had to do a little bit of grinding, but not too much.
David Willingham- BBF CONTRIBUTOR
- Posts : 495
Join date : 2008-12-02
Age : 52
Location : Blountsville, AL
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