need building specs for 605 bbf

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need building specs for 605 bbf

Post  brunswick on April 28th 2012, 8:22 pm

im wanting to build a 605 bbf and i need to find out stroke and rod length that i need and can i use the a-460 block or do i need an eliminator block any help would be appriciated thx

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Re: need building specs for 605 bbf

Post  rmcomprandy on April 28th 2012, 8:46 pm

brunswick wrote:im wanting to build a 605 bbf and i need to find out stroke and rod length that i need and can i use the a-460 block or do i need an eliminator block any help would be appriciated thx

A 604.81" engine is 4.625" bore x 4.500" stroke.

A 604.79" engine is 4.562" bore x 4.625" stroke.


Last edited by rmcomprandy on April 28th 2012, 8:52 pm; edited 3 times in total (Reason for editing : spelling and/or typo's)

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Re: need building specs for 605 bbf

Post  cool40 on April 28th 2012, 8:47 pm

look in the proven builds,you'll find some good info...... Smile 4.625 bore 4.5 stroke,eliminator block and bryant crank.
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Re: need building specs for 605 bbf

Post  schmitty on April 29th 2012, 12:10 am

4.5 bore 4.75 stoke will do it too. The cheapest by far is with the 4.625 bore and 4.5 stroke. A 598 with the 4.6 bore and 4.5 stroke will leave some material in the bore for future clean up honing or boring though and would be a good choice if using a new block. Most blocks are at their max with the 4.625 bore, and ring packages become more difficult to find and very expensive past that bore size.
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Re: need building specs for 605 bbf

Post  bbf-falcon on April 29th 2012, 10:56 am

schmitty wrote:4.5 bore 4.75 stoke will do it too. The cheapest by far is with the 4.625 bore and 4.5 stroke. A 598 with the 4.6 bore and 4.5 stroke will leave some material in the bore for future clean up honing or boring though and would be a good choice if using a new block. Most blocks are at their max with the 4.625 bore, and ring packages become more difficult to find and very expensive past that bore size.

A big X2 Smile

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Re: need building specs for 605 bbf

Post  c.evans on April 29th 2012, 10:30 pm

You can use either block. The 4.600" X 4.500" = 598 CID is one of the most common engines out there, and is very user friendly.

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