440 Source Head Opinions?

ultimatejay said
I posted an in depth video of guy who specializes in cylinder heads and porting and he gave his opinion. So if your butt hurts because these heads are not super super great and then I dont know what to tell you. If you want a cheap cylinder head that flows like crap then this head is just for you. In my opinion I would just buy some stock heads and get a good valvejob and porting done to them then buying these.

I watched the video and the gentleman basically confirmed what I already knew about the heads. Yes the chamber design leaves a bit to be desired as it's basically a copy of OE closed-chamber BBM heads like the 516 and 915. And I've heard before the valve seat job is mediocre. Nobody ever said they're "super super great". They're an affordable aluminum alternative to factory iron heads, 30-40 cfm extra flow OOTB unported is mostly just a bonus. I'm willing to bet if he put an unported 906 head on his flow bench he'd barely get over 220 cfm max. They're "great" because you can buy them and bolt them on OOTB without worrying about assembly or machining issues wrecking your new engine which is not the case on MOST cheaper aftermarket heads (EDELBROCK, Speedmaster etc). Spend $1000+ on 50-year-old iron heads to get them squared away and still have heads that flow 230-250 cfm and weigh 50+ lbs each, in my opinion that's a waste of money. It's not just me either because I've had my 346 heads listed for sale for a few weeks now and have gotten zero interest whatsoever, not even an offer. One guy even commented saying he's got loads of old BB heads he couldn't sell due to availability of affordable aftermarket heads and he decided to just keep or scrap them which is probably what I'll end up doing with mine.

The link @IQ52 shared shows that 440Source sells Trick Flow heads if you want something that's actually a legit performance improvement. And AFAIK Trick Flows are made in USA so, there you go.