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-   -   Camming a 598' for endurance and torque (https://www.offshoreonly.com/forums/general-q/171009-camming-598-endurance-torque.html)

IRONMAN 10-12-2007 10:14 PM

Camming a 598' for endurance and torque
 
Would a hyd roller or a solid roller get me closer to 500 to 600 hours of service life if adjusted at normal intervals? I plan on running at a max of 5500 rpms and making big torque, I am not trying to get 800hp out of this, maybe 650 to 700hp

Back4More 10-12-2007 11:02 PM

http://www.iskycams.com/redzone.php
http://www.iskycams.com/springs.php

Happy reading

Griff 10-13-2007 03:56 AM

You will still need to probably replace the valve springs every 150hrs due to the high lift it will need to work well with 598ci.

KAAMA 10-14-2007 08:48 AM

Not sure how many hours you'd get out those engine(s), but 650-700hp out of a NA 598cid shouldn't be too difficult. Lots of factors determine the endurance/longevity of and engine, but one thing that will help is a cam with a profile that is easy on the valve train and install a shaftmount roller rocker arm system vs a stud mount---and use really high quality valve springs. The valve train is a Big Block's weakest link. You can install a shelf cam if you want or for only about $70 or so more, RMBuilder/Bob Madara of Marine Kinetics will get you a cam that is tailor fitted to your engine's specs/application. Have Fun.

ROB FREEMAN 10-14-2007 03:15 PM

ive got rm buider hy roller he cut for my 598 id be willing to sell dyno time only

800XCR 10-14-2007 03:58 PM

Rob, please post cam card/specs.

Thanks

ROB FREEMAN 10-14-2007 06:28 PM

1 Attachment(s)
hers the cam card

Back4More 10-14-2007 07:12 PM

Thats a great cam grind with some big 350+ heads.

IRONMAN 10-14-2007 08:32 PM


Originally Posted by ROB FREEMAN (Post 2305546)
hers the cam card

Why would you want to sell? It looks like a nice grind for a 598. Did you switch to solid?

ROB FREEMAN 10-14-2007 08:36 PM

exactly i run worked 345 drt pro ones , im going to have bob cut me a solid roller and try the new red zone lifters from isky always in search of mo power !!


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