Originally Posted by Gtxxjon
Just watched Nick on YT running the 520cube 71 GTX engine.

It has answered a lot of questions real quick for me!

Don't use a stock intake or stock exhausts lol... down

But the real question is?

How good or bad 'are' the Stealth heads... drinking

Can I 'out-port' them with iron???

We did buy a set back in 2005 and fitted them on a 543 engine with high compression.
It was pretty new stuff back then and I think it ran high tens in a street car (65 Coronet).

I would be happy with 11's with my homeported 902's and 511 cubes.
Start with an Edelbrock Torker and then hopefully an iron six-barrel... drive


The Stealths can be ported to flow better than a ported iron head with much less work , I have the Super Stealths that I ported to Max Wedge on my 512 street car, they quit making them they use .650 offset intake rockers, My junk runs pretty good for what it is, small cam, 9.7 compression, if you want the stock looking head with straight spark plugs they can be made to flow pretty good for a NON raised port head.


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5