4horseman

I am about to put in a built ls6 sae 500 hp. It will be supercharged with about 10-12 lbs. Should I upgrade to a sfi flexplate or the upgraded driveshaft first? I cant do both right now unfortunately and have to play the odds.

Thanks

4horseman

Thanks Brett for the excellent advice, as always.

BLOWNBLUEZ06@RKT Performance

My pleasure sir.


For the rest of the readers, I chose the flex plate since I've seen the autos do so well with the prop shafts in higher powered builds than this one.

C5Natie

I'm still on the stock flexplate with no issues. When I was at 700rwhp I did grenade both driveshafts couplers and destroyed the shaft. The carnage was epic. I went with a solid billet coupler and a poly six shooter coupler.