I'm in Greensboro NC. Any recommendations in NC or Southwest VA that would work on cast iron X heads for 68 Darts GTS 340 and maybe help me design the valvetrain for the car? I contacted Larry Smith in NC but he is unable to work on Iron Heads.
Physically unable to due to the weight.That last picture is the ugliest Mopar I ever seen! LOL..
He can't work on them or doesn't want to? Grinding on cast iron is much more of a pain than grinding on aluminum as you can only imagine..
Thank you. Very good ideatry contacting Herb McCandless' shop and ask for a referral.
They are date coded to the car so I'm more interested in optimizing them for a decent cam through the production exhaust manifolds , ported heads with a match ported intake etc... no going for all out powerThere’s worthwhile cast iron, W2’s and Chevy Dart Platinum, and then there’s stock small block Mopar heads. Not saying they can’t be made to work but it’s not enjoyable work. Heck even a 906 big block Mopar head can push the 290-300 cfm area.
I’d say he doesn’t want to. Ive been following his faceplant page for a few years and have yet to see any porting updates that included iron heads. All aluminum, all the time.He can't work on them or doesn't want to? Grinding on cast iron is much more of a pain than grinding on aluminum as you can only imagine..
They are date coded to the car so I'm more interested in optimizing them for a decent cam through the production exhaust manifolds , ported heads with a match ported intake etc... no going for all out power
I've done 11.4 with 596 cast heads (smog heads), but I have the slowest stroker on the internet...Hey they will work fine for what you want to do. Heck I ran 11.82 with a set over 40 years ago and lots of guys have gone a lot faster than that. That damn cast iron leaves a bad taste in your mouth when you are grinding on it.
IMO the most important thing to do is cc them. Pistons are above deck but the cc for them can be figured out as well.optimizing them for a decent cam through the production exhaust manifolds
Who has a CNC porting program for X heads?I wouldn't be so fussy about 'local'. You can ship them anywhere in the US pretty easily.
Contact info?Tim Sloan in Sanford, NC (actually Broadway). Highly recommend him.
That's all I'm looking for ... lightest valvetrain possible matched to cam ... they pretty experienced with Mopars? I seem to remember hearing their name at Piedmont Dragway every now and thenDid you try King Machine in Burlington?
King Machine Shop engine performance and rebuilding
You probably don't need much with X heads. Mill them to get them flat, Performance valve job, clean up the bowls, some stainless steel valves, and springs to match your cam.