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Piston choice for 598

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J.Toney
bbcoupe
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Piston choice for 598 Empty Piston choice for 598

Post  bbcoupe November 12th 2023, 2:22 am

G'day guys,
Time for an engine rebuild and want to step up a bit from the 572ci combo I have at the moment to 598ci.

A460 block currently 4.500
Scat forged crank
6.8 Eagle rods
Blue Thunder B heads

I've had a bit of a look in Diamonds catalogue and there doesn't appear to be a spec piston to suit, would appreciate any suggestions on where to look for piston choice or is a custom piston the most appropriate choice?

Thanks.

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Post  J.Toney November 12th 2023, 7:49 am

Isn’t the Blue Thunder B a standard CJ type valve layout piston?
What about Icon, Mahle, JE?
J.Toney
J.Toney

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Post  stanger68 November 12th 2023, 8:49 am

Racetec.

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Post  supervel45 November 12th 2023, 8:51 am

Looks like the Mahle Book Slugs stop at 4.5/6.7".

Might Give Them a Shout and see if The can Cut you a set for the 598.

https://www.us.mahle.com/en/motorsports/custom-piston-sets/

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Post  rmcomprandy November 12th 2023, 11:27 am

bbcoupe wrote:G'day guys,
Time for an engine rebuild and want to step up a bit from the 572ci combo I have at the moment to 598ci.

A460 block currently 4.500
Scat forged crank
6.8 Eagle rods
Blue Thunder B heads

I've had a bit of a look in Diamonds catalogue and there doesn't appear to be a spec piston to suit, would appreciate any suggestions on where to look for piston choice or is a custom piston the most appropriate choice?

Thanks.

Buy a custom set of pistons and be done with it...

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Post  supervel45 November 13th 2023, 8:13 pm

^ What Randy Said.

I saw These for C-Heads Floating around, for what seems like Over a Year.

I Don't Know if It is a Good Idea to Add Valve Notch's or if They are Workable for Your Deal.

I Bet You Could Get Them for much Less Then Asking or Custom Pistons Though?

https://www.ebay.com/itm/143597437002

Just Passing It on as a Possible Option.

As Always: Not Mine and Buy at Your Own Risk. Neutral

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Post  rmcomprandy November 14th 2023, 11:36 am

In the 1970's, custom pistons cost around $850.00 ... NOW custom pistons can be had for about $950.00; and they are much better quality today.

Nothing in this industry has increased in price so little in over those 50 years.

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Post  maverick172 November 14th 2023, 11:50 am

were do you get custom pistons for that price? i called kasse he quoted me 1830 for custom pistons ? and $350 for rings quote="rmcomprandy"]In the 1970's, custom pistons cost around $850.00 ... NOW custom pistons can be had for about $950.00; and they are much better quality today.

Nothing in this industry has increased in price so little in over those 50 years.[/quote]

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Post  rmcomprandy November 14th 2023, 9:36 pm

maverick172 wrote:were do you get custom pistons for that price? i called kasse he quoted me 1830 for custom pistons ? and $350 for rings quote="rmcomprandy"]In the 1970's, custom pistons cost around $850.00 ... NOW custom pistons can be had for about $950.00; and they are much better quality today.

Nothing in this industry has increased in price so little in over those 50 years.

Call CP and get changes made to a shelf, (catalog), piston to make them customized.

Other piston companies will do the same thing.

[/quote]

rmcomprandy

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Post  maverick172 November 14th 2023, 10:12 pm

i will give them a call and see what they can come up with than . thanks

rmcomprandy wrote:
maverick172 wrote:were do you get custom pistons for that price? i called kasse he quoted me 1830 for custom pistons ? and $350 for rings quote="rmcomprandy"]In the 1970's, custom pistons cost around $850.00 ... NOW custom pistons can be had for about $950.00; and they are much better quality today.

Nothing in this industry has increased in price so little in over those 50 years.

Call CP and get changes made to a shelf, (catalog), piston to make them customized.

Other piston companies will do the same thing.

[/quote]

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