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-   -   525 efi valve springs (https://www.offshoreonly.com/forums/do-yourself-boating-budget/334578-525-efi-valve-springs.html)

MikeScarab28XLT 10-08-2017 09:13 PM

2017, any better ore other OEM spring sets for the 525 efi available ? Thank´s for any help.


Are the comp cams sping set 929-16 a set i can use on 525 efi gen2 engine stock power ?

1MOSES1 10-08-2017 10:10 PM


Originally Posted by MikeScarab28XLT (Post 4586900)
2017, any better ore other OEM spring sets for the 525 efi available ? Thank´s for any help.


Are the comp cams sping set 929-16 a set i can use on 525 efi gen2 engine stock power ?

everyone is still using isky tool springs. Atleast in all my reading and research. Others can chime in.

VoodooRob 10-09-2017 08:19 AM

Agree with HyFive, we used the same parts and used Johnson lifters. "Isky 8005A springs and change retainers and locks to 10 degree to get 1.850 installed height."

obnoxus 10-09-2017 08:36 AM

+ 1 for PAC,,,, thats what Merc uses

F-2 Speedy 10-09-2017 08:38 AM


Originally Posted by VoodooRob (Post 4586954)
Agree with HyFive, we used the same parts and used Johnson lifters. "Isky 8005A springs and change retainers and locks to 10 degree to get 1.850 installed height."

++ agree
Isky Racing Cams 8005-A Dual Valve Springs 1.530 in. 400lbs | eBay


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