Sup new to thhe site. Names greg

So hears what I got 1990 f 150 4x4
Im swapping the inline out to a 351 w. cuz shes tired 437 k I have 351 strocked out to a 408with gt 40 heads and a 5500 rpm comp cam flat top pistons board .30 over and a edelbroke intake. Was going to pit it in my stang but like my 5.0 ho to mutch to swap it. Had the motor for a year trying to finish but no time and no need. Well now its got a new home and I have to use a 28 oz balenced harmonicbalencer becouse the crank isnt internal balence uses an external balencing. Can I use the stock one or shuld I spend the green (350 from summit).
Before any one ask I am doing a mass air flow swap as well and getting ride of the speed density
Thanks for the help and if u need more info let me no.
Greg

 

I wouldn't use the stock one, this one here should do the job and the weight can be removed if you ever need to use on zero balance engine

Summit Racing SUM-C4269 - Summit Racing Street & Strip® Bracket Racer SFI Harmonic Dampers - Overview - SummitRacing.com

 

O sweet thaanks man I could only find one for 350 but thatll work