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-   -   HP500 Valve Springs (https://www.offshoreonly.com/forums/do-yourself-boating-budget/381460-hp500-valve-springs.html)

Cory H 01-17-2024 03:41 PM

HP500 Valve Springs
 
I have a pair of low hour HP500 Carb (Gen 6) that I picked up. I plan to replace springs, retainers and locks before installation. What is the go to replacement kit for these? The Comp 929's that come up on my search threads are no longer available.

GLENAMY 242SS 01-17-2024 05:03 PM

call Ron Sporl (Ron Sporl Performance member here on OSO) he will know and most likely have them in stock.

Griff 01-17-2024 08:49 PM

I would prob choose Isky 8005-SP's

Cory H 01-17-2024 09:33 PM


Originally Posted by Griff (Post 4888901)
I would prob choose Isky 8005-SP's

How about locks and retainers

c0ncEpT 01-18-2024 03:43 PM

If they're the same as a 525EFI than Teague stocks OEM replacement PAC springs. They are private label to Teague so you can't buy them anywhere else.

F-2 Speedy 01-18-2024 04:52 PM

I used the Isky 8005A when I rebuilt a pair of 500 EFI's

JaayTeee 01-18-2024 09:31 PM


Originally Posted by F-2 Speedy (Post 4888944)
I used the Isky 8005A when I rebuilt a pair of 500 EFI's

Same here

Cory H 01-19-2024 10:29 AM

Thanks for the info.

NautiSouth 03-02-2024 10:13 PM

There's a calculator on this page that might help:

http://allmondmarine.com/valvetrain-engineering-services/

JaniH 04-13-2024 02:38 AM


Originally Posted by NautiSouth (Post 4892186)
There's a calculator on this page that might help:

http://allmondmarine.com/valvetrain-engineering-services/

Awsome link, thank you!


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