How strong are aftermarket k-members?

[StangBangRicers]

I see people do this to save weight, but I'm curious about how well they hold up to 500+ or maybe even 1000+ hp.

 

[TT91]

Horsepower shouldnt effect the k-members integrity. All aftermakret k-members that I have seen have been up to PAR. Im using the UPR peice, no complaints with 615 flywheel horsepower. Id be willing to say that an aftermarket k-member is capable of supporting or withstanding more abuse then a stock peice. most companies use chromoly steel, which is pretty damn strong, compared to stamped steel that the stock peice is made out of.
Besides weight saving, aftermakret k-members offer-
-Use of coil over suspension
-Increasred oil pan clearance
-Increased header clearanced
-Easy access to starter -
-Looks AWESOME!

When i did my swap, the actual k-member weighed 13lbs.... .the stock peice was around 45lbs...

 

[mike keirstead]

Considering that just about every mustang that is a dedicated track car has one underneath it. Mustangs that are down in the 7s have them so I think there pretty tough.

 

[mr.nitrous]

Im running the QA1 K-Member and i have no complaints, good weight loss and more header clearence. Good investment.

 

[pocket3799]

Looks like I'm getting the QA-1. Glad you like it!!