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-   -   Can i use a flat tappet cam in a roller block (https://www.offshoreonly.com/forums/general-q/288910-can-i-use-flat-tappet-cam-roller-block.html)

BBCLiberator 12-18-2012 06:24 PM

I agree, get a take out stock roller set-up, you can get them for next to nothing.

checkeredpast 12-19-2012 02:31 AM


Originally Posted by ezstriper (Post 3832729)
well yes you can, but would not...merc did it on the gen VI 525sc's, just rebuilt 2 early this year, but switched to new rollers from marine kinetics...Bob did a great job making them close to stock...

Which timing set do you use,gen 5 or gen6?

mike tkach 12-19-2012 06:41 AM

gen6

ezstriper 12-19-2012 07:07 AM

yes, have to use gen VI because of timing cover, but were using a roller...

checkeredpast 12-19-2012 07:22 AM

Thanks for your help guys!

HaxbySpeed 12-19-2012 05:41 PM

No, you'll have to use a IV or V timing set. The VI is for a step nose cam and will not work on your flat tappet. Some doubles fit inside the stock timing cover but if you have any clearance issues you can just use a good quality single, or get an aftermarket cover.

checkeredpast 12-19-2012 05:54 PM

I have found a roller and springs so I think we're going that route. Anyone have a set of push rods for a Gen 6?

protechcoat 12-21-2012 11:34 PM

you said you found a gen6 block it is mage for roller cams just like the gen 5 . all your old parts should fit .ive built lots of them.

picklenjim 12-22-2012 12:25 AM


Originally Posted by protechcoat (Post 3835987)
you said you found a gen6 block it is made for roller cams just like the gen 5 . all your old parts should fit .ive built lots of them.

Gen 5 had flat tappets. He needs pushrods for his new roller set up.

ezstriper 12-22-2012 07:36 AM

you are going to need to assemble engine and then check to see what length push rod you are going to need...


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